A6175 ROC800-Series Remote Operations Controller Instruction Manual

ROC800-Series Instruction Manual

Revised Jul-14

Input/Output Modules

4-23

Figure 4-29 shows the field wiring diagram for the MVSI/O module.

Figure 4-28. MVS Field Wiring

Figure 4-29. MVS I/O Field Wiring

Note

A “star” configuration for transmitters may not be reliable.

Terminations are recommended for long distances (greater that 1000

meters) at the extreme ends of the circuit. Terminate the two outermost

devices to reduce signal reflection in the circuit. The MVS termination

jumper is located at J4 on the module. Refer to

Table 4-4

and

Figure 4-

Table 4-4. MVS Termination

Jumper

Terminated

Not Terminated

TER

OUT

TER

OUT