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Figure 6-2: M-M RS232/RS485 Interface Connections with GCC.
6.3 Communications Port Switch Settings
Communications port toggle switches are set to open or closed positions for proper transfer of data.
To set dip switches on RAUZ1 and RAUZ2 PCB’s proceed as follows:
All cubicles must have the switches “O” and “P” set in the open position for a 4 wire link. See Figure 6-3.
Cubicle #1 = Switch “N” must be in the open position. Switches “M”, “K”, “L”, and “J” must be in the closed
position. All other cubicles must have switches “M”, “K”, “L”, and “J” in the open position.
Cubicle #2 = If cubicle #2 is the end-of-line, then switch “N” must be in the closed position. If cubicle #2 is
not the end-of-line (there are more than 2 cubicles), then switch “N” must be in the open
position.
NOTE: Only the end-of-line cubicle will have the “N” switch in the
closed position. All other cubicles will have the “N” switch
in the open position.
For an example of two module system settings, see Figure 6-4.
GCC Troubleshooting
Graphical Command Center
page 6 —2
SSC
GCC
RS232/RS485
CONVERTER
12345678910
12345678910
RAUZ1 OR RAUZ2 PCBA / GTCZ COM2
T-
R-
T+
R+
XR11 / COM2
T-
R-
T+
R+
4 COND. SHIELDED CABLE or DUAL TWISTED PAIR WIRE
12345678910
12345678910
RAUZ2 PCBA / GT2Z COM2
T-
R-
T+
R+
XR11
No Connection
SSC UPS 1
No Connection
No Connection
No Connection