4-Wire Connections - GE D400 Hardware User Manual

RS-485 CONNECTIONS

4-Wire connections

To connect RS-485 4-
wire type devices to
the RS-485 Adapter
RX+ RX- TX+ TX- GND
56
RS-485 Channel Position Number
Channel 2 6
7
8
9
10
The terminal block positions are numbered from 1 to 10 starting from the bottom of the
card.
See "RS-485 adapter" on page 37 for configuration options.
Use the following wiring connection:
Before wiring devices, ensure that the RS-485 Adapter is configured to 4-wire mode (see
"RS-485 adapter" on page 37).
Figure 32: RS-485 4-wire devices - wiring connection
Device 1
RX+ RX- TX+ TX- GND
CHAPTER 4: CONNECTING TO DEVICES AND NETWORKS
2-Wire
Function
TX2+
TX2−
FGND 2
RX2−
RX2+
Device 2
RX+ RX- TX+ TX- GND
GENERAL D400 SUBSTATION GATEWAY USER'S MANUAL
Signal Flow
IN/OUT
IN/OUT
Shield
-
-
Device 3