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IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 1 of 26 features ? 1063mb/s data rate short wavelength (sw; distance ? 500m) and long wavelength (lw; distance ? 10km) versions available (ansi) fibre channel compliant (longer dis- tances are available on a custom basis) fcsi-301-revision 1.0 compliant (gigabaud link module) 20-bit electrical interface parallel electrical ? light conversion clock and data recovery serialization/deserialization international class 1 laser safety certified ul & csa approved low bit error rate (<10 -12 ) high reliability (afr <0.0195%/khr, over 44khours) applications fibre channel client/server environments distributed multi-processing fault tolerant applications visualization, real-time video, collaboration channel extenders, data storage, archiving data acquisition overview IBM42M10SNYAA20 and ibm42m10lnyaa10 are 1063mb/s gigabit link modules (glms). these highly integrated fiber optic transceivers provide high-speed serial links at a signaling rate of 1062.5mbit/s, which equates to 100mbytes/s of con- tinuous throughput simultaneously in each direction. the IBM42M10SNYAA20 conforms to the american national standards institute?s (ansi) fibre channel, fc-0 specification for short wavelength operation (100-m5-sl-i and 100-m6-sl-i) [1]. the ibm42m10ln yaa10 conforms to the ansi fc-0 specification for longwave operation (100-sm-ll-i). these modules can also be used for other serial applications where high data rates are required. they are compact, double-sided, surface mount modules designed to easily connect to a user?s sys- tem card. data and control lines conform to industry standard ttl interface levels. the IBM42M10SNYAA20 uses short wavel ength (850nm) vcsel lasers. this enables low cost data transmission over optical fibers at distances up to 500m. a 50/125 m multimode optical fiber, termi- nated with an industry standard sc connector, is the preferred medium. a 62.5/125 m multimode fiber can be substituted with shorter maximum link dis- tances. the ibm42m10lnyaa10 uses long wavelength (1300nm) lasers. this enables data transmission over optical fibers at distances up to 10km on a sin- gle mode (9/125 m) optical fiber. twenty-bit encoded transmit data is received, serial- ized at 1062.5mbaud, and modulated on the laser. the 20-bit data must be encoded using the 8b/10b encoding scheme [3, 4] specified by the fibre chan- nel standard. incoming, modulated light is received by a photore- ceiver mounted in the sc receptacle. a phase locked loop (pll) recovers the clock and retimes the serial data which is deserialized into a 20-bit word and presented to the interface at 53.125mhz. .
?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 2 of 26 glm1063n.02 11/10/99 IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc pin configuration ?! as seen from the connector side of the module. d01 d20 a20 a01 rx tx ? pin definitions pin signal note pin signal note pin signal note pin signal note a01 n/c 1 b01 n/c 1 c01 ground d01 n/c 1 a02 ground b02 ground c02 ground d02 n/c 1 a03 v cc b03 tx[10] c03 tx [00] d03 v cc a04 tx[12] b04 tx[11] c04 tx [02] d04 tx [01] a05 tx[14] b05 tx[13] c05 tx [04] d05 tx [03] a06 tx[16] b06 tx[15] c06 tx [06] d06 tx [05] a07 tx[18] b07 tx[17] c07 tx [08] d07 tx [07] a08 ground b08 tx[19] c08 tx [09] d08 ground a09 strobed id 2 b09 ground c09 ground d09 v cc a10 v cc b10 link unusable c10 fault d10 tbc a11 parallel id [1] 3 b11 reserved 4 c11 transmit si (n/c) d11 parallel id [0] 3 a12 rbc[0] b12 enable wrap c12 comma detect d12 v cc a13 v cc b13 ground c13 reserved 5 d13 rbc [1] a14 ground b14 rx[10] c14 rx [00] d14 ground a15 rx[12] b15 rx[11] c15 rx [02] d15 rx [01] a16 rx[14] b16 rx[13] c16 rx [04] d16 rx [03] a17 rx[16] b17 rx[15] c17 rx [06] d17 rx [05] a18 rx[18] b18 rx[17] c18 rx [08] d18 rx [07] a19 v cc b19rx[19] c19rx[09] d19 v cc a20 enable comma detect b20 ground c20 ground d20 lock to refer- ence 1. the serial i/o functions of this card are not implemented. the serial i/o lines are left open on the glm. 2. the strobed id function is now implemented. this function is new. 3. the parallel id bits are tied to v cc through 10k resistors. 4. pin b11 is a reserved input. it is left open. 5. pin c13 is a reserved output. it is left open.
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 3 of 26 exceptions to glm and fibre channel specifications IBM42M10SNYAA20 and ibm42m10lnyaa10 comply with the fibre channel (100-m5-sl-i, 100-m6-sl-i 100-sm-ll-i) and glm specifications except for the following: the glm specification [1] requires that the fault line be reset by toggling the ewrap signal. IBM42M10SNYAA20 and ibm42m10lnyaa10 do not operate this way. the fault line is reset only when it has been determined that the laser is operating correctly. the optical receptacles on the end of the ibm42m10lnyaa10 (long wavelength) do not contain the fibre channel specified ?single mode keying? features. either singlemode or multimode fibre channel compli- ant sc duplex connectors can be inserted into the ports of this glm. laser safety compliance requirements the IBM42M10SNYAA20 and ibm42m 10lnyaa10 are designed and certified as class 1 laser products. they are to be used only with another ibm-produced IBM42M10SNYAA20, ibm42m10lnyaa10, or a certi- fied equivalent in a point-to-point configuration. this is a requirement for proper operation of IBM42M10SNYAA20 and ibm42m10lnyaa10. if the power supply voltage runs over 6.0 volts this glm may no longer remain a class 1 product. the system using the glm must provide power supply protection that guarantees no voltage in excess of 6.0 volts under all fault conditions. connection of a glm to a non-approved optical source, operating the power supply above 6.0 v, or otherwise operating the glm in a manner inconsistent with its design and function may result in hazardous radiation exposure, and may be considered an act of modifying or new manufacturing of a laser product under us reg- ulations contained in 21 cfr(j) or cenelec regulations contained in en 60825. the person(s) performing such an act is required by law to recertify and reidentify the product in accordance with the provisions of 21 cfr(j) for distribution within the usa., and in accordance with provisions of cen- elec en 60825 (or successive regulations) for distribution within the cenelec countries or countries using the iec 825 standard. ordering information part number signalling rate optical fibre control wavelength IBM42M10SNYAA20 1062.5mb/s no 850nm ibm42m10lnyaa10 1062.5mb/s no 1300nm
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 4 of 26 glm1063n.02 11/10/99 transmit section the 20-bit transmit data enters the shift register and is clocked out at 1062.5mbit/s to the serial output pins and the multiplexer. the ac drive modulates the laser with the data from the serial input pins or the serial- ized version of the transmit data. the transmit phase locked loop (tx pll) generates the internal 1062.5mhz clock for the shift register from the 53.125mhz transmit byte clock provided by the system. the dc drive maintains the laser at the correct preset power level. safety circuits in the dc drive will shut off the laser if a fault is detected. the multiplexer is used to route the serialized data to the receive section while in wrap mode. receive section the incoming, modulated optical signal is received by the photoreceiver. the receive pll (rx pll) phase locks a 1062.5mhz clock to the data and sends the data and clock to the shift register (s/r) to be deserial- ized. the s/r has a byte synchronization detector that recognizes a unique comma character so that com- plete bytes can be unloaded from the s/r without being fragmented. the clock generator creates two complementary phases of a 53.125mhz clock for use by the host system to latch the receive data. block diagram shift register shift register pll postamp laser fiber input transition detector loss of light detector clock generator lck_ref l_unuse fault ewrap & mux ac drive photo- detector dc drive tbc output fiber en_cdet com_det fault sense rx tx pll transition detector rbc[0:1] tx[00:19] rx[00:19]
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 5 of 26 output signal definitions levels for the signals described in this section are listed in digital outputs on page 14. receive byte clocks (rbc[0:1]) the clock generator generates two clock signals, 180 degrees out of phase, for use in clocking the parallel data (rx[00:19]). each of the receive byte clocks has a nominal 53.125mhz frequency. the timing of these clocks is shown in the receive timings diagram below. if the enable comma detect signal is active, these clocks will be reset any time that a comma character is received (see comma detect (com_det) on page 6 and transmit and lock to reference timings on page 8). if a stream of comma characters (transmitted on both tx[00:09] and tx[10:19]) is received, rbc[0:1] will not operate properly. having adjacent comma characters violates 8b/10b coding. if there is no modulated light into the receiver or the pll is out of lock for some other reason, the receive byte clocks will operate at an unknown frequency between 27 and 106mhz. receive data (rx[00:19]) these 20 lines are used to output the deserialized data to the system logic in parallel. rx00 is received at the photoreceiver first. rx19 is received last. the relationship between the receive byte clocks and receive data is shown in the receive timings diagram below. the comma character will always be aligned on rx[00:09]. if there is no modulated light into the receiver or the receive pll is out of lock for some other reason, the receive data lines change randomly. receive timings rx[00:19] valid comma detect >2.5ns rbc[1] >6.0ns 18.8ns >2.5ns >6.0ns 18.8ns k28.5 data rbc[0] note: all critical timings are referenced to the negative edge of the clocks.
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 6 of 26 glm1063n.02 11/10/99 in most applications, it is assumed that the byte sync character will be transmitted on tx[00:09]. if the byte sync is transmitted on tx[10:19], it will still be received on rx[00:09].the comma character must always be sent on the even boundary. (fibre channel requires word boundaries.) comma detect (com_det) this signal is driven high for one cycle whenever a comma character is detected by the deserializer; the receive byte clocks are also reset. the comma character (k28.5) is described in [3]. this function is referred to in the fibre channel standard [1] as byte alignment . the k28.5 comma character is defined with two polarities. the glm only detects the polarity shown in the comma character description table below. when the enable comma detect line is high, the receive byte clocks and the byte boundary are aligned upon receiving a comma character. in some applications, including fibre channel, this comma detect char- acter is sent out frequently. many of these applications wish to (re)align the byte boundary relative to the receive byte clocks whenever a comma character is received (enable comma detect line is kept high). one of the disadvantages of this approach is that in the event of a bit error there is a possibility that a comma character will be created and the olm will change its byte boundary and thereby cause all subsequent data to be erroneous until the next comma character is received. the decision to keep the enable comma detect line high should be based on the user?s application. one oddity with the current comma detect function is that a low enable comma detect only quits detecting a comma character after one has been received. if there is no modulated light into the receiver or the pll is out of lock for some other reason, the comma detect line will pulse randomly. the comma detect function can be disabled with the enable comma detect input signal. this is described in enable comma detect (en_cdet) on page 9. the comma detect function will not operate properly if a stream of comma characters is transmitted. comma character description data bits rx00 rx01 rx02 rx03 rx04 rx05 rx06 rx07 rx08 rx09 8b/10b designation 1 abcdei fghj logiclevel 0011111xxx 1. the alphabetical notation (a, b, c, d, e, i, f, g, h, j) conforms to the 8b/10b code description in [3], but is not used in this document because of the confusion frequently caused by these alpha characters being out of alphabetical order.
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 7 of 26 link unusable (l_unuse) when this line is high it indicates that the fiber path is open. the link unusable line goes high within 650 sof the disruption of the incoming received signal. this signal is used in the link acquisition sequence, as speci- fied on page 11. fault (fault) upon sensing an improper power level in the laser driver, the glm sets this signal high and turns off the laser within 20 s. the glm specification [2] requires that the fault line be reset by toggling the ewrap signal. the glm, how- ever, resets the fault line only after it has determined that the laser is operating correctly. strobed id (strob_id) this output is for use in accessing the serial strobed id configuration information. it is retrieved by the method specified in the glm specification. parallel id (par_id[0:1]) these two pins tell the system logic what speed olm is installed. strobed id data strobed id bit sw lw d0 1 1 d1 0 1 d2 0 0 d3 1 1 d4 1 1 d5 1 1 d6 1 0 d7 1 1 parallel id definition par_id[1] par_id[0] olm type 0 0 132mb/s 0 1 266mb/s 1 0 531mb/s 1 1 1063mb/s
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 8 of 26 glm1063n.02 11/10/99 input signal definitions levels for the signals described in this section are listed in digital inputs on page 15. transmit byte clock (tbc) the system logic provides a single-phase transmit byte clock for transmission operations. the relationship between the transmit data and the transmit byte clock is shown in the transmit timing diagram below. transmit data (tx[00:19]) two 10-bit pre-encoded data bytes from the system logic are presented to the glm for serialization. byte 0, comprised of bits tx00 through tx09, is launched first. byte 1, comprised of tx10 through tx19, is launched last. the transmit timing diagram below shows the setup and hold times for the transmit data. lock to reference (lck_ref ) this active low signal causes the deserializer pll to acquire frequency lock on the transmit byte clock (tbc). the lock to reference timing diagram shows the required lock to reference time and the wait time for valid data. the lock to reference line is used in the operation of the receiver pll. when the incoming data stream is absent (e.g. when the companion glm is in wrap mode), the receiver pll will drift to a minimum or maximum frequency (27 to 106 mhz) which is far from the nominal operating point. if the incoming data is turned back on, the pll will attempt to readjust and may lock onto either the incoming data rate or to one of its harmonics . to guarantee that the pll locks on to the fundamental frequency of the incoming data, the lock to reference line is driven low, forcing the pll to lock onto the transmit byte clock supplied by the system (which is extremely close to the frequency of the incoming data). it takes a maximum of 500 s for the pll to lock onto to the transmit byte clock reference. thereafter, the lock to reference lineisdrivenhighbythesystemand the incoming data stream is directed into the receiver pll. the receiver pll will achieve phase and fre- quency lock of the incoming data within 2500 bit times (2.4 s). the designer needs to be careful in choosing when the logic exercises the lock to reference signal. since the receiving system is not generally in control of the incoming signal, it must make some savvy decisions about when pll synchronization is lost. transmit and lock to reference timings (2.4 s) >500 s ?! data valid after receipt of first k28.5 <2500 bit times rx[00:19] lck_ref transmit tx[00:19] ?! data must be valid 18.8ns byte clock >3.3ns >2.0ns note: positive edge of the transmit byte clock. all critical timings are referenced to the transmit timing lock to reference timing in most instances, the minimum required lock to reference time is 120ms (rather than 500ms). ?? ?
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 9 of 26 lock to reference timings: the glm specification for the minimum required lock to reference time is 500 s. under certain conditions this minimum required time can be reduced to 120 s. the following paragraph describes under what condi- tions this reduced lock time is met. the frequency of the receiver pll needs to be in close proximity to the frequency of the incoming data in order to attain phase lock on the data. to do this, the transmit byte clock is applied to receiver ic module through a separate pin. the lock to reference pin toggles whether the receiver pll phase locks to the incoming data stream or to the transmit byte clock. whenever the link unusable line goes high and the enable ewrap line is low, the receiver pll switches to frequency lock onto the transmit byte clock. when the enable ewrap line is high, the receiver pll stays locked to the incoming data stream even when the link unusable line goes high. this process achieves lock to reference times as short as 120 s. enable comma detect (en_cdet) this signal activates the comma detect function described in comma detect (com_det) on page 6. when this line is high, the comma detect line will strobe and the receive byte clocks will be reset when a k28.5 character is received. enable wrap (ewrap) this signal causes the serializer to wrap the transmit data to the deserializer and turn off the laser within 20 s. as a result, the link goes down and the link unusable line is driven high. this sequence causes the pll to lose bit synchronization making it necessary to cycle the lock to reference line after the link unusable line indicates the link is active. the wrap function on the glm can be used to improve fault isolation. when the enable wrap line is driven high, the data that would normally have been transmitted on the fiber is rerouted to the receiver. the same lock to reference sequence used for optical data must be used to lock to the received data. when the lock to reference sequence is completed, the data written to the transmit data lines can be read from the receive data lines. this function is useful to determine whether the glm is correctly seated in the electrical connector. if the glm functions correctly in wrap mode, it is likely that any fault would be in the optical path.
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 10 of 26 glm1063n.02 11/10/99 operation powering on: initial card outputs receive data outputs are random. comma detect will be random. receive byte clocks will run between 27 and 106 mhz. fault is low. link unusable is high. ping pong interface available a shortwave 1063mb/s glm that utilizes a 20-bit ping ponged interface is available as a distinct ibm product. this interface is designed to reduce simultaneous switching noise. the ping-ponged interface is designed into the module and is not user selectable. in the ping pong interface module, tx[00:09] is timed off the rising edge of the transmit byte clock as shown below. tx[10:19] is timed off the rising edge of tbc plus one half of the tbc period using identical timing specifications as in ?transmit data (tx[00:19])? on page 8. rx[10:19] is timed off rbc[1] using identical timing specifications as in ?receive data (rx[00:19])? on page 5. the skew between rbc[0] and rbc[1] shall not exceed 1.5ns. ping pong interface timings transmit tx[00:09] ?! data must be valid byte clock >3.3ns >2.0ns note: positive edge of the transmit byte clock. all critical timings are referenced to the tx[10:19] >12.7ns <7.4ns clock and data timing for ping pong interface receive timing for ping pong interface rx[00:09] comma >2.5ns rbc[1] >6.0ns 18.8ns 18.8ns k28.5 data note: all critical timings are referenced to the data data rx[10:19] valid valid detect negative edge of the clocks. rbc[0] >2.5ns >6.0ns >2.5ns >6.0ns 18.8ns ? ? ?
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 11 of 26 link acquisition sequence the following sequence should be followed to get a glm in full synchronization with a companion card under- going a similar sequence. this sequence will also work with a single card when using an optical wrap connec- tor. 1. power up the glm. the transmit byte clock should be running as defined in transmit byte clock (tbc) on page 8. 2. the link unusable line will indicate if the receiver is detecting an adequate incoming light level. 3. drive the transmit data lines to a 01010101010101010101. (this speeds up the synchronization process and assures that the comma detect line will not pulse randomly on the companion card during the remainder of this sequence.) 4. drive the input control lines as follows: a. enable wrap: low (will not be changed) b. enable comma detect: high (will not be changed) c. lock to reference :high if a link is properly connected and the companion card is in an equivalent state of readiness, the link unusable line will be low. this indicates that the received light is sufficient for operation. 5. bring lock to reference low for at least 500 s. see lock to reference ( lck_ref ) on page 8. 6. bring the lock to reference high. after 2500 bit times (2.4 s), the glm should be in bit synchronization (the internal clocks are aligned to the incoming bit stream), but not yet byte synchronization (the byte is aligned along the same boundary it had when sent from the companion system to the companion glm prior to serialization). the receive byte clock frequency should now be running at 53.125mhz (the frequency of the companion transmit byte clock) and the comma detect line is ready to indicate reception of the comma character. 7. drive the transmit data lines with a k28.5 (byte sync) character. as soon as the glm receives the k28.5 character from the other side of the link, the clocks will align to the byte boundary and all the receive data lines will have valid data. this will be indicated by the activation of the comma detect line (see receive section on page 4).
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 12 of 26 glm1063n.02 11/10/99 isolating hardware faults the following sequence can be helpful in isolating most hardware faults: 1. check the link unusable line. if it is low, then the link is active and this process won?t help. 2. check the fault line. if it is high, then the laser or the laser control circuitry is faulty. replace the glm. note: the fault line is known to come on due to probing. 3. run a set of patterns through the card while in wrap mode (see enable wrap (ewrap) on page 9). if these fail, run through the checks in "troubleshooting: what if ..." below. 4. disconnect the cable and insert an optical wrap plug, or a simplex 50-micron optical cable that works properly. rerun the same tests you did in line 3 (not in wrap mode). if these fail, the optics are defective. replace the glm. 5. rerun steps 1 to 4 on the companion glm. if all tests pass, replace the cable. note: if the tests in line 3 pass, this also verifies that the system and all connections to the glm are operating correctly. note: this sequence assumes the use of the link acquision sequence listed on page 11. troubleshooting: what if ... the module does not achieve bit synchronization: verify that the transmit and receive frequencies are within 0.01% of each other. verify that valid 8b/10b data is being sent on the transmit side. if the transmit side transmits a 01010101010101010101 pattern, the glm will synchronize the clock to the data stream in the least time. the module never gets into byte synchronization: verify that the enable comma detect line is high so that a comma character will reset the shift register. verify that the transmitting glm is getting a correct comma character on its tx[00:09] or tx[10:19] lines, but not both . note: a common mistake is switching the order of the lines. the fault line comes on: the laser or its control circuitry is broken. repeat the power-on sequence to verify the problem. note: the fault line is known to come on due to probing.
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 13 of 26 absolute maximum ratings parameter symbol min. typical max. units notes storage temperature t s -40 75 c 1 relative humidity?storage rh s 095% 1, 2 ambient operating temperature t op 070 c 1 relative humidity operating rh op 880% 1, 2 supply voltage v cc -0.5 6.0 v 1 ttl dc input voltage v i 0 v cc +0.7 v 1 1. stresses listed may be applied one at a time without causing permanent damage. functionality at or above the values listed is not implied. exposure to these values for extended periods may affect reliability. 2. excludes condensing environment. operating conditions parameter symbol min. typical max. units ambient operating temperature t op 10 50 c supply voltage v cc 4.75 5.0 5.25 v relative humidity operating rh op 880% transmit byte clock f tbc 53.1197 53.1250 53.1303 mhz
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 14 of 26 glm1063n.02 11/10/99 electrical characteristics power supply parameter symbol min. typical max. units current (@ 5.0 v) 520 600 ma current (@ 5.5 v) 530 620 ma ripple & noise 100 mv(pk-pk) digital outputs parameter symbol min. typical max. unit notes receive byte clock, receive data, comma detect drive levels data output, voltage - high (source 0.5ma) v oh 2.4 v cc v data output, voltage - low (sink 0.5ma) v ol 00.6v receive byte clock, receive data, comma detect timing receive byte clock duty cycle 40 60 % rise time t r 0.7 2 3.0 ns 1 fall time t f 0.7 2 2.4 ns 1 receive data setup time 2.5 ns receivedataholdtime 6.0 ns setup time for data rx[10:19] in ping-pong mode 2.5 ns 2 hold time for data rx[10:19] in ping-pong mode 6.0 ns 2 unlocked frequency 27 106 mhz link unusable and fault driver levels data output, voltage - high (source 4.0ma) v oh 2.4 v cc v data output, voltage - low (sink 4.0ma) v ol 0.0 0.4 v parallel id bits output voltage v oh v cc v 2 1. rise and fall times are measured from 0.8 to 2.0 volts with the outputs driving a 10 pf lumped capacitive load. 2. see ?ping pong interface available? on page 10for a description of this timing interface. 3. the parallel id bits are tied to v cc through 10k ohm resistors.
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 15 of 26 digital inputs parameter symbol min. typical max. units notes enable wrap level data input, voltage - high (sink 10 a) v ih 2.0 v cc v 1 data input, voltage - low (source 2ma) v il 0.0 0.8 v 1 transmit data, transmit byte clock, enable comma detect, lock to reference , and transmit si levels data input, voltage - high (sink 10 a) v ih 2.0 v cc v 1 data input, voltage - low (source 1ma) v il 0.0 0.8 v 1 transmit byte clock, transmit data timing rise time t r 3.2 ns 2 fall time t f 3.2 ns 2 duty cycle 32 68 % positive edge jitter 0.5 ns frequency f tbc 53.1197 53.1250 53.1303 mhz transmit data setup time 2.0 ns transmit data hold time 3.3 ns 1. the overshoot and undershoot limits for the logic inputs are 0.7 v above v cc and ground, respectively. 2. rise and fall times are measured from 0.8 to 2.0 volts with the outputs driving a 10 pf lumped capacitive load.
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 16 of 26 glm1063n.02 11/10/99 optical characteristics short wavelength parameter symbol min. typical max. units notes optical power budget opb 7 db receiver specifications return loss of receiver rl 12 db received power -17.0 0.0 dbm (avg) 1 operating wavelength 770 860 nm transmitter specifications spectral center wavelength c 770 860 nm spectral width ? 4 nm (rms) launched optical power pt -10.0 -5.5 dbm (avg) 2 optical extinction ratio 9 db 3 relative intensity noise rin 12 -120 db/hz 4 eye opening 57 % (pk-pk) 5 deterministic jitter dj 20 % (pk-pk) 6 1. the minimum and maximum values of the average received power in dbm give the input power range to maintain a ber < 10 -12 . these values take into account power penalties caused by the use of a transmitter with a worst-case combination of transmitter spectral width, extinction ratio, and pulse shape characteristics. 2. launched optical power is measured at the end of a 2 meter section of a 50/125 m fiber (n.a.=0.20) for the IBM42M10SNYAA20 (short wavelength glm) and a 9/125 m fiber for the ibm42m10lnyaa10 (long wavelength glm). the maximum and minimum of the allowed range of average transmitter power coupled into the fiber are worst case values to account for manufacturing vari- ances, drift due to temperature variations, and aging effects. 3. extinction ratio is the ratio of the average optical power (in db) in a logic level one to the average optical power in a logic level zero measured under fully modulated conditions in the presence of worst case reflections. 4. rin 12 is the laser noise, integrated over a specified bandwidth, measured relative to average optical power with 12db return loss. see ansi fibre channel specification annex a.5 [1]. 5. eye opening is the portion of the bit time which is error free for a given bit error rate (ber). the fibre channel standard for ber is <10 -12 . the general laser transmitter pulse shape characteristics are specified in the form of a mask of the transmitter eye diagram. these characteristics include rise time, fall time, pulse overshoot, pulse undershoot, and ringing, all of which should be controlled to prevent excessive degradation of the receiver sensitivity. when assessing the transmit signal, it is important to consider not only the eye opening, but also the overshoot and undershoot limitations. 6. deterministic jitter is measured as the peak-to-peak timing variation of the 50% optical signal crossings when transmitting repeti- tive k28.5 characters. it is defined in fc-ph, version 4.1, clause 3.1.84 as: timing distortions caused by normal circuit effects in the transmission system. deterministic jitter is often subdivided into duty cycle distortion (dcd) caused by propagation differences between the two transitions of a signal and data depen- dent jitter (ddj) caused by the interaction of the limited bandwidth of the transmission system components and the sym- bol sequence.
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 17 of 26 long wavelength parameter symbol min. typical max. units notes optical power budget opb 9 db 7 receiver specifications return loss of receiver rl 12 db received power -20.0 -3.0 dbm(avg) 1 operating wavelength 1270 1355 nm transmitter specifications spectral center wavelength c 1270 1355 nm spectral width ? 6nm(rms) launched optical power pt -9.0 -3.0 dbm(avg) 2 optical extinction ratio 9 db 3 relative intensity noise rin 12 -116 db/hz 4 eye opening 57 % (pk-pk) 5 deterministic jitter dj 20 % (pk-pk) 6 1. the minimum and maximum values of the average received power in dbm give the input power range to maintain a ber < 10 -12 . these values take into account power penalties caused by the use of a transmitter with a worst-case combination of transmitter spectral, extinction ratio, and pulse shape characteristics. 2. launched optical power is measured at the end of a 2 meter section of a 50/125 m fiber (n.a.=0.20) for the IBM42M10SNYAA20 (short wavelength glm) and a 9/125mm fiber for the ibm42m10lnyaa10 (long wavelength glm). the maximum and minimum of the allowed range of average transmitter power coupled into the fiber are worst case values to account for manufacturing vari- ances, drift due to temperature variations, and aging effects. 3. extinction ratio is the value of the ratio of the average optical power (in db) in a logic level one to the average optical power in a logic level zero measured under fully modulated conditions in the presence of worst case reflections. 4. rin 12 is the laser noise, integrated over a specified bandwidth, measured relative to average optical power with 12db return loss. see ansi fibre channel specification annex a.5 [1]. 5. eye opening is the portion of the bit time which is error free for a given bit error rate (ber). the fibre channel standard for ber is <10 -12 . the general laser transmitter pulse shape characteristics are specified in the form of a mask of the transmitter eye diagram. these characteristics include rise time, fall time, pulse overshoot, pulse undershoot, and ringing, all of which should be controlled to prevent excessive degradation of the receiver sensitivity. for the purpose of an assessment of the transmit signal, it is important to consider not only the eye opening, but also the overshoot and undershoot limitations. 6. deterministic jitter is measured as the peak-to-peak timing variation of the 50% optical signal crossings when transmitting repeti- tive k28.5 characters. it is defined in fc-ph, version 4.1, clause 3.1.84 as: timing distortions caused by normal circuit effects in the transmission system. deterministic jitter is often subdivided into duty cycle distortion (dcd) caused by propagation differences between the two transitions of a signal and data depen- dent jitter (ddj) caused by the interaction of the limited bandwidth of the transmission system components and the sym- bol sequence. 7. this 9db optical power budget is a result of the difference between the worst case transmitted launch power, the receiver sensitiv- ity and a 2db optical path power penalty (as specified in the ansi fibre channel specification): (-9dbm) - (-20dbm + 2db) = 9db
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 18 of 26 glm1063n.02 11/10/99 optical cable/connector requirements parameter symbol min. typical max. units notes 9/125 m cable and connector specifications (single mode) length l 2 10000 m attenuation @1300nm c 0.5 db/km sc optical connector (single mode) nominal attenuation con 0.75 1 attenuation standard deviation con 0.2 1 connects/disconnects 250 cycles 1 50/125 m cable and connector specifications (multimode) length l 2 550 m bandwidth @ 850nm bw 500 mhz-km attenuation @ 850nm c 3.0 db/km numerical aperture n.a. 0.20 62.5/125 m cable specifications (multimode) length 2 300 m bandwidth @ 850nm bw 160 mhz-km attenuation @ 850nm 3.0 db/km numerical aperture n.a. 0.275 sc optical connector (multimode) nominal attenuation con 0.3 0.5 db 1 attenuation standard deviation con 0.2 db 1 connects/disconnects 250 cycles 1 1. the optical interface connector dimensionally conforms to the industry standard sc type connector documented in jis-5973. a dual keyed sc receptacle serves to align the optical transmission fiber mechanically to the glm. see ?duplex sc receptacle? on page 22 for a drawing of the duplex sc receptacle that is part of the glm.
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 19 of 26 thermal characteristics air speed (lfpm) external thermal resistance (r ext )( c/w) notes ser/des ic module 161 18.0 1 268 20.9 1 375 25.9 1 laser driver/post amp ic module 161 38.7 1 268 43.2 1 375 51.2 1 1. the case temperature can be calculated using the following equation: where acf = altitude correction factor (1 for sea level & 1.12 for 4200 ft.) and power = power dissipated in the serializer or deserializer ic module (calculated from table below). reliability projections parameter symbol min typical max. units notes average failure rate afr 0.0195 %/khr 1 1. afr specified over 44 khours. to meet the specified afr, the case temperatures of the serializer and deserializer ic modules should not exceed 85 c. in addition, the case temperature of the laser should not exceed 50 c. case t ambient r ext acf power + = v cc = 4.5v to 5.5v ic module typical max serializer/des. 0.92w 1.32w laser driver/post amp 0.65w 0.84w
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 20 of 26 glm1063n.02 11/10/99 mechanical description the transmit and receive circuits are electrically isolated on opposite sides of a double sided surface mount card. two optical receptacles are at the end of the card. they are spaced 12.7mm apart to accept a standard duplex sc connector such as the one shown on page 22. the optical receptacles on the end of the ibm42m10ln yaa10 (long wavelength glm) do not contain the fibre channel specified ?single mode keying? features. both singlemode and multimode sc duplex connec- tors can be inserted. the host card footprint with essential keepout areas is shown on page 21. card layout note: all dimensions are in millimeters. 3.8 max 12.7 max mounting axis 0.25 ! 8.25 1.17 0.17 11.5 0.25 77.5 max a 43.1 max 28.5 ! 0.5 37.5 min 7.5 max 4.8 2.5 ! ! 0.05 post pin a20 0.46 ! ! 0.05 optical axis 25.65 max d b 30 28.1 ! 0.1 2min receiver side tran sm it ter side 29 min 4rowsx20 terminal strip 24.13 2.94 35.5 max placement axis 30.5 min 36.1 max 63.53 2.5 ! ! 0.05 post (2x) 2 ! ! 0.025 hole countersink 2.36 0.05 x 20 5.9 deep minimum for thread forming screw 1.35 min pin a01 0.46 ! 0.05 c
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 21 of 26 host card footprint mounting axis 4.8 max a 1.6 0.25 (2x) 64.27 min 63.53 43.4 min 37.2 max 7.5 min b (2x) 2.6 min (2x) 3.35 min receiver side transmitter side 24.5 min 30 optical axis 32 0.2 36.8 pitch d c 4.8 36.4 min 30.2 max r1.6typ socket a01 accommodates a pin spec?d no electrical traces placement axis 28.85 min 24.13 2.94 4 rows x 20 surface mount or pin-in-hole socket strip socket a20 accommodates a pin spec?d 2.65 0.08 0.46 0.05 2.65 0.08 0.46 0.05
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 22 of 26 glm1063n.02 11/10/99 system board thickness these glms are optimized for use with a board that is between 0.053 inches (1.35mm) and 0.073 inches (1.85mm) thick. thicker boards can be used by: routing out the area where the l-clip latches into the board so that it does not exceed a thickness of 0.073 inches. routing out a larger area than required by the l-clips and using some other retention mechanism (e.g. the screw holes on the optical end of the card). duplex sc receptacle bracket opening shown with aperture divided between ports 13.7 (2 surfaces) optical plane 13.7 size to fit ferrule 7.4 12.7 receiver side size to fit ferrule 7.4 9 9 4.79 4.79
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 23 of 26 system board configurations these glms are designed to be used in multiple configurations: back-to-back: all necessary card features are offset to allow ease of installation on opposite sides of a host card. this requires the use of female surface mount connectors on the system card. close pitch side-to-side: cards can be placed on a 36.8mm pitch by sharing common holes for l-clip retention. both: back-to-back and close pitch side-to-side are completely compatible. mechanical features positive retention: the integrated l-clips provide sufficient retention for most environments. screw holes are integrated into the retainer on the optical end of the product for use in environments with high vibration content or where tail stock or other additional mounting hardware is not used to secure the sc connectors. integrated extraction tool: this tool provides a simple method to remove the glm from the host card with- out requiring access to the sides or back of the card. it also minimizes stress to both the glm and the system card during removal of the glm. alignment pins: these pins are integrated into the product. the center of the round pin is the gdt (geomet- rical dimension and tolerance, an industry standard mechanical drawing methodology) registration point. these pins also provide stress relief for the 80-pin connector. this is especially important when the system card uses a surface mount connector. emi slot: there is a small (2mm) vertical slot in the sc connector. this allows the system to cut the aperture of sc connector in half. this is extremely important in applications where the sc connector extends outside the system box. we strongly encourage designing the tail stock with a hole for each of the sc connectors (i.e., have a small metal strip between the connectors). connector availability one source for the mating connectors is: samtec 810 progress blvd., po box 1147 new albany, in 47151-1147 (812) 944-6733 samtec part numbers: pin-in-hole: folc-120-01-p-q-lc surface-mount with standard clipping: folc-120-02-p-q-lc surface-mount with reverse clipping: folc-120-02-p-q-lcr
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 24 of 26 glm1063n.02 11/10/99 references 1. american national standards institute inc. (ansi), x3t11, fibre channel-physical and signaling inter- face (fc-ph) . copies of this document may be purchased from: global engineering 15 inverness way east englewood, co 80112-5704 phone: (800) 854-7179 or (303) 792-2181 fax: (303) 792-2192. 2. fibre channel systems initiative. (fcsi), gigabaud link module family fcsi-301-revision1.0, feb, 16, 1994 . this document may be downloaded under anonymous ftp from: playground.sun.com. it is in the file pub/incoming/fcsi-301-rev1.ps 3. a.x. widmer and p.a. franaszek, ?a dc-balanced, partitioned-block, 8b/10b transmission code,? ibm journal of research and development , vol. 27, no. 5, pp. 440-451, september 1983. this paper fully defines the 8b/10b code. it is primarily a theoretical work pinned in coding theory. 4. a.x. widmer, the ansi fibre channel transmission code, ibm research report, rc 18855 (82405) , april, 23 1993. copies may be requested from: publications ibm thomas j. watson research center post office box 218 yorktown heights, new york 10598 phone: (914) 945-1259 fax: (914) 945-4144
IBM42M10SNYAA20 ibm42m10lnyaa10 1063mb/s gigabit link module - no ofc glm1063n.02 11/10/99 ?ibm corporation. all rights reserved. use is further subject to the provisions at the end of this document. page 25 of 26 revision log rev. date contents of modification 11/09/98 initial release (00). 3/22/99 first revision (01). corrected maximum wavelength to 10km. corrected part numbers to end in -10 instead of -20. 11/10/99 second revision (02). on page 3, added laser safety compliance requirements and corrected 780nm to 850nm in ordering information table. deleted notes 2 and 3 from optical cable/connector requirements on page 18.
copyright and disclaimer ? international business machines corporation 1999 copyright and disclaimer all rights reserved printed in the united states of america november 1999 the following are trademarks of international business machines corporation in the united states, or other coun- tries, or both. ibm ibm logo other company, product and service names may be trademarks or service marks of others. all information contained in this document is subject to change without notice. the products described in this docu- ment are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons. the information contained in this document does not affect or change ibm product specifications or warranties. nothing in this document shall operate as an express or implied license or indemnity under the intellec- tual property rights of ibm or third parties. all information contained in this document was obtained in specific environ- ments, and is presented as an illustration. the results obtained in other operating environments may vary. the information contained in this document is provided on an "as is" basis. in no event will ibm be liable for damages arising directly or indirectly from any use of the information contained in this document. ibm microelectronics division 1580 route 52, bldg. 504 hopewell junction, ny 12533-6351 the ibm home page can be found at http://www.ibm.com the ibm microelectronics division home page can be found at http://www.chips.ibm.com glm1063n.02 11/10/99

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