The SCMPB05 backpanel (Figure 12) can accept up to eight SCM5B analog input and/or output modules in any combination. It can be mounted on the SCMXRK-002 19-inch metal rack. A separate analog signal path is provided for each channel and each channel’s signal is accessible at redundant 26-pin connectors. The module output switch is continuously “on” when using this backpanel and all eight module outputs are simultaneously accessible to high-speed data acquistion (ADC) boards.
On-board jumpers permit paralleling two SCMPB05 boards to form a SCMPB01 equivalent. An additional set of inter-channel bridge jumpers permits connecting an input module’s output to an output module’s input, providing two levels of isolation (Figures 12, 13).
Jumpers on the SCMPB05 permit user selection of low (i.e. channels 0-7) or high (i.e. channels 8-15) addresses. A temperature sensor mounted on each channel provides cold junction compensation for thermocouple input modules (see Fig. 13 for schematic). Field connections are terminated with four screw terminals at each module site. Use system interface cable SCMXCA004-XX for connection to the host system.
