User guide

I/O Transceiver Modules (T7310)
2 (Issue 1) Industrial Control Services
Figure 1. Block Diagram of I/O Transceiver Module.
I/O module responses are buffered and transmitted back along the
chassis’ backplane Safetybus to the I/O transceiver, and from the
I/O transceiver along the I/O Safetybus cable to the processor
modules.
Triplicated power is cabled into the I/O chassis and distributed to
the I/O transceiver modules. Each I/O transceiver module
receives power from one of the three I/O power supplies. Power
regulation circuits in the I/O transceiver modules provide the
necessary regulated voltages for the module’s electronics. Should a
single power supply fail, an interlock signal from the failed power
supply will cause the I/O transceiver it normally powers to shut
down.