Wiring The Signal Connections - GE XMTC User Manual

Chapter 2. Installation
2.4.3 Cable Specifications (cont.)
Table 3 below shows the connections for the GE standard 3-wire RS232 cable (P/N 704-668), which is available with a
male or female DB-9 or a DB-25 connector. This cable is available in standard lengths of 6 ft (2 m) and 12 ft (4 m).
Lead
RX
TX
GND
Note: See EIA-RS Serial Communications (document 916-054) for detailed RS232 wiring instructions.

2.4.4 Wiring the Signal Connections

The XMTC power input, analog output, and RS232 connections are made to terminal blocks TB1 and TB2, which are
accessed by removing the XMTC cover. See Figure 7 below for the location and pin designations for terminal blocks
TB1 and TB2. Also refer to Appendix C, Installation and Wiring Diagrams.
CAUTION!
14
Table 3: GE 3-Wire RS232 Cable
Color
Red
White
Green
Do not make any connections to unassigned or unused terminals.
1
2
3
4
1
2
3
Figure 7: XMTC Signal Wiring Connections
AWG
22
22
22
+24VDC Line (red) 1
24VDC Return (black) 2
+4 to 20 mA (white) 3
–4 to 20 mA (green) 4
RS232 RX (red) 1
RS232 TX (white) 2
RS232 GND (green) 3
SIGNAL CONNECTIONS
Terminal
TB2-1
TB2-2
TB2-3
TB1
TB2
XMTC User's Manual