Brasch GDCP-A, Instruction & Operation Manual

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Table 2-5.2: Explanation of the connection points on terminals TS1 and TS2
Terminal Identifier Function
#1 +UNREG Supplies the unregulated positive DC voltage for the
+15 VDC power supply.
#2 COM Common connection for all circuit points.
#3 -UNREG Supplies the unregulated negative DC voltage for
the -15 VDC power supply.
#4 COM Common connection for all circuit points.
#5 +COMM Provides one side of the RS-485 communications
port.
#6 -COMM Provides the second side of the RS-485
communications port.
See FIG. 5, page 15, for the location of these terminal strips.
Connect the shielded cable as shown in Fig. 6, page 17, being very careful to avoid
mistakes. Either of the two terminal strips, TS1 and TS2, can be used to connect
to the transmitters. The two terminals will come in handy if the transmitters fan out in
opposite directions from the panel.
Be sure that all of the transmitters that will be assigned to the system are
wired correctly before applying power to the panel. The panel initially polls its active
transmitters when power is first applied in order to obtain a list of the transmitter
types. The panel will consider any transmitters not connected as failed sensors and
indicate this on the display.