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Keyscan EC2500 Series - Figure 51 - Single ACU Communication - Serial CB-485

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Keyscan Technical Guide (PC109x - 04.12)
74
Figure 51 – Single ACU Communication – Serial CB-485
to Com Port
Brown
Shield
Green
Black
Red
White
PC with
Communication
Manager
- RS-232 Data Cable
- Control Board
- CB-485
- PC (requires serial port)
GND
Brown & White
not used and
taped back.
Green
Red
CB-485
J1
Black
Control Board
(PC 109x)
RX
LED
TX
LED
TD
RD
NC
BRN WHT GRN WHT BRN WHTGRN WHT BLU WHT
RS485 IN RS485 OUT M
+-+-+-+-
Jumper ON J1
RS-232
22 AWG shielded cable
Maximum - 100 ft (30 m)
Current Draw - 110 mA
Jumpers ON
Run
Run
Program
Shield*
to ground lug
Parts List
Common AUX Inputs - E
24
2322
2120191817
CPB/CB MODULE
(COM4)
Connect CB-485 ribbon cable to
CPB/CB MODULE on control board.
Jumper ON J16-G to activate
CPB/CB MODULE (H1).
SYSTEM CONFIG.
J16 - HGABCDEF
H1
B LED
H2
ECM/GCM MODULE
(COM2 & COM3)
KI-00154E-07-11
* Insulate shield with PVC
tubing such as Alpha #16
or comparable insulator
and connect to ground lug.

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