Keyscan Technical Guide (PC109x - 04.12)
91
Figure 68 – Multiple ACU Communication – CB-485
- PC (with serial port)
- CAT 5 Cable - 2 twisted pairs
- Control Board
- CB-485
- RS-232 Data Cable
to Com Port
PC with
Communication
Manager
RS-232
22 AWG shielded cable
100 ft (30 m) maximum
@ 9600 BPS
Brown & White
not used.
Tape back
separately.
Jumper ON J1
(First & Last CB-485)
Jumper
OFF J1
Jumper ON J1
(First & Last CB-485)
CAT 5
CAT 5
- RS-485 cable maximum 2000 ft (609 m) @ 9600 BPS between CB-485s
- may substitute equivalent to CAT 5 - 2 twisted pairs
- maximum baud rate is 56,000 BPS
CAT 5
Green
Red
Black
J1
Jumpers
ON Run
Shield*
Ground
Lug
`
Connect CB-485 ribbon cable
to CPB/CB MODULE terminal
on control board.
Important
Jumper ON
J16 – G to
activate CPB/
CB MODULE
(H1) terminal.
Common AUX Inputs - E
CPB/CB MODULE
(COM4)
RX
LED
TX
LED
CB-485
Control
Board
(PC 109x)
Parts List
H1
CB-485
Current Draw - 110 mA
RS485 IN RS485 OUT M
+-+-+-+-
Run
Program
RX
LED
TX
LED
GND
RD
NC
TD
J1
Jumpers
ON Run
CB-485
Current Draw - 110 mA
RS485 IN RS485 OUT M
+-+-+-+-
Run
Program
RX
LED
TX
LED
GND
RD
NC
TD
J1
Jumpers
ON Run
CB-485
Current Draw - 110 mA
RS485 IN RS485 OUT M
+-+-+-+-
Run
Program
RX
LED
TX
LED
GND
RD
NC
TD
H2
KI-00171E-07-11
* Insulate shield with PVC tubing such
as Alpha #16 or comparable insulator.