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Choose from the following options for wiring the RS-485 network:
• To connect one transmitter to a host controller for the RS-485 serial communication, see Figure 6-1.
Figure 6-1 Wiring a 9739 MVD transmitter to a host controller
9739
26
27
A
B
RS-485
• To connect multiple transmitters to a host controller for the RS-485 serial communication, see Figure 6-2.
Figure 6-2 Wiring multiple 9739 MVD transmitters to a host controller
9739
26
27
A
B
9739
26 27
9739
26 27
RS-485
Wire the transmitter to a Bell 202 multidrop network
Procedure
Use terminals 17 and 18 to wire the 9739 MVD transmitter to a Bell 202 network (see Figure 6-3).
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