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COMMUNICATIONS MODULES & SUBSYSTEMS
OC-48 SFP Transceiver (Multirate, 1310 nm, and 1550 nm) CT2 Series
Key Features
* SFP MSA compatible * Fully OC-48 SONET compliant at all reaches: SR, IR-1, IR-2, LR-1, and LR-2 * Microprocessor-based design fully implements the Digital Diagnostic Monitoring Interface * Automatic output power and extinction ratio control over temperature and lifetime to compensate for laser efficiency degradation * Both PIN and APD versions meet -27 dB receiver reflectance * Optical parameters tuned and optimized over temperature in production test * Expandable options such as coarse wavelength division multiplexing (CWDM) and a custom software user interface
Applications
* * * *
Metro access Metro core Wide area networks Optical crossconnects
The JDSU CT2 Series OC-48 (2.5 Gb/s) transceiver module integrates optics and electronics in a Small Form Factor Pluggable (SFP) package. It is Multisource Agreement (MSA) compatible and designed for operation at 1310 nm and 1550 nm. Although optimized for OC-48, it provides multi-rate capabilities and can be used from OC-3 (155 Mb/s) up to 2.7 Gb/s. The CT2 Series SFP transceiver provides a fully OC-48 SONET compliant interface between the SONET/SDH photonic layer and the electrical layer. Its microprocessor-based modular design implements all features specified in the SFP MSA compatible 2-wire Serial Digital Diagnostic Monitoring Interface for Optical Transceivers. The major components in this module include a Fabry-Perot or uncooled distributed feedback (DFB) based optical transmitter, a PIN or APD based optical receiver with integrated transimpedence amplifier (TIA), an APD high voltage circuit (if required), a microprocessor, a limiting post amplifier, and a laser driver. The modular transceiver design offers a "hot-pluggable" interface, allowing the same basic architecture to be used for SR, IR-1, IR-2, LR-1, and LR-2 versions.
Compliance
* GR-253-CORE * ITU-T G.957 * SFF-8472
NORTH AMERICA: 800 498-JDSU (5378)
WORLDWIDE: +800 5378-JDSU
WEBSITE: www.jdsu.com
OC-48 SFP TRANSCEIVER
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Dimensions Diagram (Specifications in mm unless otherwise noted; see dimensions table on next page.)
K REF J MIN A A F REF
D
F REF A
M C P N
Y MAX
B H MAX L MIN X 45 Y MAX
G REF
Section A-A
S R MAX See Detail Y
Q
W T U X REF V
AG AF AA REF AE REF
Z Z Z AB MAX
Detail Y
Section Z-Z
OC-48 SFP TRANSCEIVER
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Dimension Table for the CT2
Designator A B C D E F G H J K L M N P Q R S T U V W X Y Z AA AB AE
Dimension 13.7 mm 8.6 mm 8.5 mm 13.4 mm 1.0 mm 2.3 mm 4.2 mm 2.0 mm 28.5 mm 55.0 mm 1.1 mm x 45 2.0 mm 2.25 mm 1.0 mm 9.2 mm 0.7 mm 45.0 mm 34.6 mm 41.8 mm 2.7 mm 2.7 mm 7.3 mm 2.0 mm 0.45 mm 8.6 mm 2.6 mm 6.0 mm
Tolerance 0.1 mm 0.1 mm 0.1 mm 0.1 mm Maximum Reference Reference Maximum Minimum Reference Minimum 0.25 mm 0.1 mm 0.1 mm 0.1 mm Maximum 0.2 mm 0.3 mm 0.15 mm 0.05 mm 0.1 mm Reference Maximum 0.05 mm Reference Maximum Reference
Comments Transceiver width, nose piece or front that extends inside cage Transceiver height, front, that extends inside cage Transceiver height, rear Transceiver width, rear Extension of front sides outside of cage Location of cage grounding springs from centerline, top Location of side cage grounding springs from top Width of cage grounding springs Location of transition between nose piece and rear of transceiver Transceiver overall length Chamfer on bottom of housing Height of rear shoulder from transceiver printed circuit board Location of printed circuit board to bottom of transceiver Thickness of printed circuit board Width of printed circuit board Width of skirt in rear of transceiver Length from latch shoulder to rear of transceiver Length from latch shoulder to bottom opening of transceiver Length from latch shoulder to end of printed circuit board Length from latch shoulder to shoulder of transceiver outside of cage (location of positive stop) Clearance for actuator tines Transceiver length extending outside of cage Maximum length of top and bottom transceiver extending outside of cage Height of latch boss Transceiver height, front, that extends inside the cage Length of latch boss Width of cavity that contains the actuator
Bail Latch Color Code Definition
Bail Latch Color Gray Yellow Orange Red White
Wavelength 1310 nm 1310 nm 1550 nm 1310 nm 1550 nm
Typical Reach SR (2 km) IR (15 km) IR (40 km) LR (40 km) LR (80 km)
OC-48 SFP TRANSCEIVER
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CT2 Electrical Pad Layout
20 19 18 17 16 15 14 13 12 11
VeeT TDTD+ VeeT VccT VccR VeeR RD+ RDVeeR
1 2 3 4 5 6 7 8 9 10
VeeT Tx Fault Tx Disable MOD-DEF(2) MOD-DEF(1) MOD-DEF(0) Rate Select LOS VeeR VeeR
Top of Board
Bottom of Board (As Viewed through Top of Board)
Transceiver Pin Descriptions
Pin TD TDb RD RDb Rate_select TxDIS LOS
Description Un-clocked, multirate, differential serial bit stream (155 Mb/s to 2.7 Gb/s) used to drive the optical transmitter. Internally AC coupled and terminated via internal 100 differential impedence. Differential received electrical signal capable of detecting 155 Mb/s to 2.7 Gb/s bit patterns. The differential pair is internally biased and AC coupled. This signal requires 100 external differential termination. Internally monitored and available for future use. Can be customized for specific applications. Transmitter Disable Input. A logic HIGH on this input pin disables the transmitter's laser so that there is no optical output. If left open the transmitter will be disabled. Loss of Signal (Open Collector). A logic HIGH on this output indicates an incoming signal level that is less than -25 dBm but no greater than -31 dBm for IR and SR configurations and less than -34 dBm but no greater than -40 dBm for LR configurations. LOS shall deassert (logic LOW) when a 3 dB (maximum), 0.5 dB (minimum) hysteresis is obtained. Transmitter fault (Open collector). A logic HIGH indicates that the transmitter is in a fault condition. MOD_DEF(0) is internally grounded to indicate the presence of the module. Must be pulled-up on host board with 10 K resistor. MOD_DEF(1) is the clock of the 2 wire interface for module monitoring. MOD_DEF(2) is the data line of the 2 wire interface for module monitoring. Receiver, Transmitter power supply, respectively Receiver, Transmitter ground, respectively. The chassis ground and circuit ground isolation is configurable.
Tx_fault MOD_DEF(0) MOD_DEF(1) MOD_DEF(2) VccR,VccT VeeR, VeeT
OC-48 SFP TRANSCEIVER
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Absolute Maximum Ratings
Parameter Standard operating case temperature range Extended operating case temperature range Storage case temperature range Supply voltage Voltage on any input/output pin High-speed output source current Lead soldering temperature/time Operating relative humidity (non-condensing) Receiver optical input power PIN APD
Minimum -5 C -40 C -40 C -0.5 V 0V 5% -
Maximum 75 C 85 C 85 C 4.0 V Vcc 50 mA 250 C/10 seconds 85% 3 dBm 0 dBm
Transceiver Electrical Input/Output Characteristics
(Vcc = 3.3 V5%)
Parameter Input data signal levels input voltage swing, DVIN (internally AC coupled) Transmitter disable input (disabled/enabled) Rate select input (high data rate/low data rate) Transmitter fault output (asserted/deasserted) Output data signal levels1 output voltage swing, DVOUT (internally AC coupled) Loss-of-signal output (output high, VOH/output low, VOL)
Minimum 200 mV 2.0 V/0 V 2.8 V/0 V 2.4 V/0 V 400 mV 2.4 V/0 V
Maximum 2000 mV Vcc/0.8 V Vcc/0.6 V Vcc/0.5 V 2000 mV Vcc/0.5 V
1. Terminated into 100 differential. These levels are guaranteed down to 2 dB lower than the typical receiver sensitivity for each data rate and reach.
OC-48 SFP TRANSCEIVER
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Timing of Status and Control Input/Output
Parameter TX_DISABLE assert time TX_DISABLE deassert time (SR, IR1, and IR2 versions) TX_DISABLE deassert time (LR1 and LR2 versions) Time to initialize TX_FAULT assert time TX_DISABLE for reset LOS assert time LOS deassert time 2-wire serial clock rate
Symbol t_off t_on t_on t_init t_fault t_reset t_loss_on t_loss_off f_serial_clock
Condition Time from rising edge of TX_DISABLE to when the output optical power falls below 10% of nominal Time from falling edge of TX_DISABLE to when the output optical power rises above 90% of nominal Time from falling edge of TX_DISABLE to when the output optical power rises above 90% of nominal Upon power up or negation of TX_FAULT due to TX_DISABLE Time from a fault condition to TX_FAULT assertion Time TX_DISABLE must be held HIGH to reset TX_FAULT Time from loss of signal to assertion of LOS Time from non-loss condition to LOS deassertion -
Specification Maximum 10 s Maximum 10 s Maximum 1 ms Maximum Maximum Minimum Maximum Maximum Maximum 300 ms 100 s 10 s 100 s 100 s 100 kHz
Power Supply Voltage
Parameter Supply voltage Minimum Typical Maximum Typical Maximum
SR
IR-1
IR-2 3.1 V 3.3 V 3.5 V 255 mA 300 mA
LR-1
LR-2
Power supply current drain1
250 mA 300 mA
255 mA 300 mA
275 mA 350 mA
275 mA 350 mA
1. Applies to hardware revision 2. Does not include output termination resistor current.
OC-48 SFP TRANSCEIVER
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Specifications
Parameter Average output power1 Minimum Typical Maximum Minimum Typical Maximum Minimum Typical Maximum Typical Maximum Minimum Minimum Typical Maximum Minimum Maximum Maximum Minimum Typical Maximum Maximum Typical Maximum Minimum Typical Minimum Minimum Minimum Maximum Minimum Typical Maximum Maximum Maximum Maximum Minimum Maximum Maximum
SR -10 dBm -7 dBm -3 dBm -9 dBm -7 dBm -4 dBm 1266 nm 1310 nm 1360 nm 4 nm 9.0 dB 11.0 dB 13.5 dB 8.2 dB 200 ps
IR-1
IR-2
LR-1
LR-2
BOL power output1
TX operating wavelength
Spectral width2 Side mode suppression ratio (DFB laser)3 Extinction ratio4 (BOL)
Extinction ratio4 (EOL) Optical rise and fall times (20 to 80%) Eye mask of optical output Eye mask margin (filtered)5 Jitter generation (peak-to-peak)6 Jitter generation (rms)6 Power output with transmitter disabled Receiver sensitivity (BOL, BER=1 x 10-10, ER=10 dB) Receiver sensitivity (EOL, BER=1 x 10-10, ER=8.2 dB) Maximum received optical power Receiver operating wavelength Link status response time
Optical path penalty Dispersion Receiver reflectance Minimum optical return loss BER floor Reflect into Tx for <1 dB degradation at the receiver Standard case temperature Extended case temperature Bit rate
-5 dBm -5 dBm -2 dBm -2 dBm -2.5 dBm -2.5 dBm 0 dBm 0.3 dBm 0 dBm 0 dBm 1.5 dBm 3 dBm -4 dBm -4 dBm -1 dBm -1 dBm -2.5 dBm -2.5 dBm 0 dBm 0.3 dBm -1.0 dBm -1.0 dBm 1 dBm 2 dBm 1260 nm 1430 nm 1280 nm 1500 nm 1310 nm 1550 nm 1310 nm 1550 nm 1360 nm 1580 nm 1335 nm 1580 nm 0.3 nm 0.3 nm 0.3 nm 0.3 nm 1 nm 1 nm 1 nm 1 nm 30 dB 30 dB 30 dB 30 dB 9.0 dB 9.0 dB 9.0 dB 9.0 dB 10.5 dB 10.0 dB 10.5 dB 10.0 dB 13.5 dB 11.5 dB 13.0 dB 11.5 dB 8.2 dB 8.2 dB 8.2 dB 8.2 dB 12.0 dB 12.0 dB 200 ps 200 ps 200 ps 200 ps Compliant with GR-253 and ITU-T G.957 5% 10% 10% 10% 10% 15% 15% 15% 15% 15% 70 mUIP-P 70 mUIP-P 70 mUIP-P 70 mUIP-P 70 mUIP-P 7 mUIrms 7 mUIrms 7 mUIrms 7 mUIrms 7 mUIrms -50 dBm -50 dBm -50 dBm -50 dBm -50 dBm -40 dBm -40 dBm -40 dBm -40 dBm -40 dBm -21 dBm -21 dBm -21 dBm -31 dBm -31 dBm -23 dBm -23 dBm -23 dBm -32 dBm -32 dBm -19 dBm -19 dBm -19 dBm -29 dBm -29 dBm -3 dBm 0 dBm 0 dBm -8 dBm -8 dBm 1260 nm 1260 nm 1260 nm 1260 nm 1260 nm 1620 nm 1620 nm 1620 nm 1620 nm 1620 nm 3 s 3 s 3 s 3 s 3 s 50 s 50 s 50 s 50 s 50 s 100 s 100 s 100 s 100 s 100 s 1 dB 1 dB 1 dB 1 dB 2 dB 12 ps/nm 800 ps/nm 1600 ps/nm -27 dB -27 dB -27 dB -27 dB -27 dB -24 dB -24 dB -24 dB -24 dB 10-15 10-15 10-15 10-15 10-15 -24 dB -24 dB -24 dB -24 dB -5 to 75 C -40 to 85 C 155 to 2700 Mb/s
1. Measured as fiber coupled power into a standard single mode fiber, typical connector repeatability is 1 dB. LC duplex cables manufactured by Stratos are not recommended due to a potentially larger window of repeatability. 2. Full spectral width measured 20 dB down from the central wavelength peak under fully modulated conditions. 3. Ratio of the average output power in the dominant longitudinal mode to the power in the most significant side mode in fully modulated conditions. 4. Ratio of logic 1 output power to logic 0 output power under fully modulated conditions with a PRBS 23 data pattern. 5. GR-253-CORE, ITU-T, Recommendation G.957. Tested at STM1, STM4, STM16. 6. Formatted OC-48 pattern with scrambled PRBS payload using an Agilent OmniBer as the optical source driving the CT2 optical receiver. The differential data outputs of this optical receiver are used as the electrical inputs for the CT2 transmitter which optically drives the OmniBer receiver input to complete the jitter test circuit. This is a 60 second test as recommended in GR-253.
OC-48 SFP TRANSCEIVER
Ordering Information
For more information on this or other products and their availability, please contact your local JDSU account manager or JDSU directly at 1-800-498-JDSU (5378) in North America and +800-5378-JDSU worldwide or via e-mail at customer.service@jdsu.com.
Sample: CT2-MS1LBTD31C4
CT2Code M G Rate OC-48 (multirate)1 Long reach GbE at 1.25 Gb/s (and 622 Mb/s) Code L P Connector/ Pigtail Length LC duplex Plastic LC receptacle Code TD3 TD5 Format/ITU Channel/ Wavelength TDM 1310 nm TDM 1550 nm Code Custom Options (Output Power/ Dispersion/Channel Spacing)3 Standard
C Code S1 I1 I2 L1 L2 Reach2 Short reach, 1310 nm Intermediate reach, 1310 nm Intermediate reach, 1550 nm Long reach, 1310 nm Long reach, 1550 nm (120 km for GbE) Code A B F K Temperature Range/ Package 0 to 70 C case temperature (MM only) -5 to 75 C case temperature -5 to 85 C case temperature -40 to 85 C case temperature Code 1 3 Software Feature Set Software release 1 Software release 3
Code 4 5
Hardware Revision Hardware revision 4 Hardware revision 5
1. Fully SONET compliant at OC-48 2. Per GR-253-Core 3. Customer specific options available upon request
Telcordia is a registered trademark of Telcordia Technologies Incorporated. All statements, technical information and recommendations related to the products herein are based upon information believed to be reliable or accurate. However, the accuracy or completeness thereof is not guaranteed, and no responsibility is assumed for any inaccuracies. The user assumes all risks and liability whatsoever in connection with the use of a product or its application. JDSU reserves the right to change at any time without notice the design, specifications, function, fit or form of its products described herein, including withdrawal at any time of a product offered for sale herein. JDSU makes no representations that the products herein are free from any intellectual property claims of others. Please contact JDSU for more information. JDSU and the JDSU logo are trademarks of JDS Uniphase Corporation. Other trademarks are the property of their respective holders. (c)2006 JDS Uniphase Corporation. All rights reserved. 10143023 Rev. 006 09/06 CT2OC48.DS.CMS.AE
NORTH AMERICA: 800 498-JDSU (5378)
WORLDWIDE: +800 5378-JDSU
WEBSITE: www.jdsu.com

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