5b series 8 channel backplane 5B08 / 5B08-mux rev. 0 information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent ri ghts of analog devices. trademarks and registered trademarks are the proper ty of their respective companies. one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781.329.4700 www.analog.com fax: 781.326.8703 ? 2005 analog devices, inc. all rights reserved. features mix and match 5b series i/o module capability factory mutual (fm) approved approved for use in class i, division2, groups a, b, c, and d locations. ce certified: emc directive in heavy industrial applications 1500 v rms channel/channel and input/output isolation four backplanes and three mounting card options 8- channels -25 o c to +85 o c temperature range single threaded insert for module hold down applications industrial signal conditioning industrial signal isolation industrial signal filtering product overview to address diverse applications, the 5b series includes a family of backplanes and mounting cards which provide a complete signal conditioning solution. the 8-channel backplanes (models 5B08 and 5B08-mux) can be mounted in a 19 x 3.5 panel space, providing different system configuration options. functional block diagram figure 1 5B08 mux functional block diagram this backplane provides four screw terminals per channel for all field connections. these connections satisfy all transducer inputs, process current outputs and provide transducer excitation when necessary. a co ld junction temperature sensor (model ac1361) sensor is also supplied on each channel to accommodate thermocouple input modules. a pair of pin sockets permits installation of the ac1362 current sensing resistor used with the 5b32 current input module on all 8- channel backplanes, a 26-pin system interface connector provides high level i/o for all channels. all 5b series backplanes and sockets require a regulated +5vdc external power source.
5B08 / 5B08-mux rev. 0 | page 2 of 8 general description model 5B08 system connectors C signal connections between the 5B08 and the associated measurement and control system are made with two identical 26-pin connectors (p1 & p2), similar to the 16-channel model 5b01 backplane. reference to these connectors is electrically identical and may be useful if a 5B08 is used for both analog input and analog output and the data acquisition system has separate input or output connectors. the i/o connectors provide a signal path for each channel and, in addition, a number of grounding pins are available to provide inter-channel shield conductors in the ribbon cable. in some cases, discussed below, the ground conductors will not provide an accurate signal reference, so a sense pin is also provided in the connectors. several jumper and component options on the 5B08 provide optimum ground connections for various applications. model 5B08 output channel selection C to configure model 5B08 i/o for different system needs, on-board jumpers are provided. a family of eight 3-pin jumpers, j8 through j15, allows the user to assign the 5B08 i/o to either the upper eight i/o pins (ch0-ch7) or the lower eight i/o pins (ch8-ch15). this capability allows two 8-channel 5B08 backplanes to be used in a 16 channel configuration, with all i/o assigned to the 16 unique i/o pins, ch0 C ch15. model 5B08 inter-channel jumpers C the 5B08 offers the user the ability to easily connect the voltage output of any 5b series input module directly to the voltage input of an adjacent output module (e.g., model 5b39) by placing a jumper over two pins j1, j2, j3, j4, j5, j6, j7. this feature can be used to provide an isolated current output form an isolated input module. this results in both isolated voltage and isolated current outputs from a single sensor input signal. model 5B08-mux backplane C the 5B08-mux incorporates input and output buses that take advantage of the internal series output switches in the 5b series input modules as well as the track-and-hold circuit in the output modules. designers integrating the 5B08-mux into a measurement and control system do not need external multiplexers and can use a single digital-to-analog converter to serve numerous output channels. digital outputs from the host data acquisition system are used to address the 5b series modules and designate inputs and outputs. only one analog input, one analog output and a number of digital outputs are required to address up to 64 analog input/output channels using eight 5B08-mux backplanes. model 5B08-mux address jumpers C 5B08-mux backplane can hold eight 5b series modules in any combination of inputs or outputs. address decoders on the backplane determine which module is read (input type) or driver (output type). separate decoders are provided for inputs and outputs. to permit system expansion, up to eight 5B08-mux backplanes can be daisy- chained on the system i/o ribbon cable for a total of 64 channels. jumpers on each backplane (labeled j1 C j9 and j10 C j18) determine the block of eight addresses assigned to each backplane. input (read) and output (write) addressing are completely independent; in all cases, jumpers j1-j9 control inputs and j10-j18 control outputs. independent addressing might be used, for example, to update output modules without interrupting the monitoring of input modules. figure 2
5B08 / 5B08-mux rev. 0 | page 3 of 8 5B08 / 5B08-mux specifications (typical @ +25c and v s =+5 v dc power) description model 5B08 model 5B08-mux number of channels 8 8 isolation input-to-output continuous channel-to-channel continuous 1500 v rms, maximum 1500 v rms, maximum 1500 v rms, maximum 1500 v rms, maximum mechanical dimensions ? with modules 3.5? x 10.0? x 3.2? (88.9 mm x 240 mm x 81.3 mm) 3.5? x 10.0? x 3.2? (88.9 mm x 240 mm x 81.3 mm) weight 7 oz. (200 g) 7 oz. (200 g) mounting standoffs 5 5 cold junction temperature sensors number provided on backplane type initial accuracy @ +25 o c accuracy +5 o c to +45 o c 8 model ac1361 + 0.25 o c (+ 0.75 o c, maximum) + 0.5 o c (+ 0.0125 o c/ o c) 8 model ac1361 + 0.25 o c (+ 0.75 o c, maximum) + 0.5 o c (+ 0.0125 o c/ o c) system i/o connector number type 2, 26-pin amp 746290-6 1, 26-pin amp 746290-6 address enable inputs max logic ?0? min logic ?1? max logic ?1? n/a n/a n/a +0.8 v +2.0 v +7.0 v power supply options voltage; operating voltage; max safe limit ? with modules current ? without modules fuse; (f1) +5 vdc + 5% +6.0 vdc max. 13ma 4 amp littelfuse ? type 252 004 +5 vdc + 5% +6.0 vdc max. 40ma 4 amp litttlefuse ? type 252 004 environmental temperature range rated performance operating storage relative humidity, 24 hours -25c to +85c -40c to +85c -40c to +85c 0 to 95% @ +60c noncondensing -25c to +85c -40c to +85c -40c to +85c 0 to 95% @ +60c noncondensing
5B08 / 5B08-mux rev. 0 | page 4 of 8 pin configuration and func tional description (5B08) figure 3 5B08 system i/o connector table 1. pin function descriptions pin no. description 1 channel 0 2 channel 8 3 common 4 channel 9 5 channel 1 6 common 7 channel 2 8 channel 10 9 common 10 channel 11 11 channel 3 12 common 13 channel 4 14 channel 12 15 common 16 channel 13 17 channel 5 18 common 19 channel 6 20 channel 14 21 common 22 channel 15 23 channel 7 24 common 25 sense 25 26 no connection esd caution esd (electrostatic discharge) sensitive device. electrostatic charges as high as 4000 v readily accumulate on the human body and test equipment and can discha rge without detection. although this product features proprietary esd protection circuitry, permanent damage may occur on devi ces subjected to high energy electrostatic discharges. therefore, proper esd precautions are recommended to avoid performance degradation or loss of functionality.
5B08 / 5B08-mux rev. 0 | page 5 of 8 pin configuration and functi onal description (5B08-mux) figure 4 5B08-mux system i/o connector table 2. pin function descriptions pin no. description 1 v read 2 i/o com 3 v write 4 sns lo 5 i/o com 6 i/o com 7 read (input) addr lsb 8 read (input) addr bit 2 9 read (input) addr bit 3 10 read (input) addr bit 4 11 read (input) addr bit 5 12 read (input) addr msb 13 read (output) addr lsb 14 read (output) addr bit 2 15 read (output) addr bit 3 16 read (output) addr bit 4 17 read (output) addr bit 5 18 read (output) addr msb 19 read enb (0) 20 write enb (0) 21 no connection 22 reserved 23 no connection 24 no connection 25 d com 26 d com esd caution esd (electrostatic discharge) sensitive device. electrostatic charges as high as 4000 v readily accumulate on the human body and test equipment and can discha rge without detection. although this product features proprietary esd protection circuitry, permanent damage may occur on devi ces subjected to high energy electrostatic discharges. therefore, proper esd precautions are recommended to avoid performance degradation or loss of functionality.
5B08 / 5B08-mux rev. 0 | page 6 of 8 outline dimensions figure 5 outline dimensions
5B08 / 5B08-mux rev. 0 | page 7 of 8 notes
5B08 / 5B08-mux rev. 0 | page 8 of 8 notes ? 2005 analog devices, inc. all rights reserved. trademarks and registered trademarks are the proper ty of their respective companies. d05413-0-2/05(0)
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