Table of Contents
Advertisement
Important
If terminating at ACU (TB4)
ensure J16 – F & G
Jumpers OFF
If terminating at CB-485 or
CPB-10-2, ensure on ACU
J16 – G
Jumper ON
KI-00222E-07-11
Keyscan Technical Guide (PC109x - 04.12)
Figure 118 – COMMex Connections
Control Board or CPB-10-2 or CB-485 Communication Terminal
GND TD
RD
J3
LED
RD
Green
Red
Black
Connect AC transformer at PC end
12 VDC
+
-
J3
RS-232
TD RD GND
GND
LED
RD
Connect shield to earth ground
+
Connect to ACU power supply
-
-
+
12 VDC
RS-232
RS-485
GND
TD RD GND + TX -
Green
LED
Power
RS-485
+ TX -
+ RX -
LED
TD
40-2322 female cable end
connects to PC COM port.
LED
Power
+ RX -
LED
TD
Red
Black
Yellow
153
Advertisement
Table of Contents
