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Figure 71 – Multiple ACU Communication - USB Adaptor/CB-485 (RS-485)
to USB port (may require
USB extension cable)
Isolate and tape the 3
loose RS-232 wires on
485 OUT 485 IN
USB adaptor.
+ TX - + RX -
Note
USB (RS-485) communication is slower than direct serial
or NETCOM communication.
Do not connect USB adaptor to modem.
2 twisted pairs
2000 ft (609 m) maximum
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
CPB/CB MODULE
(COM4)
Control
Board
(PC 109x)
H1
H2
Common
AUX Inputs - E
LED
KI-00174E-07-11
Keyscan Technical Guide (PC109x - 04.12)
CAT 5
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.
TX
RX
LED
CB-485
Parts List
- PC (with USB port)
- CAT 5 Cable - 2 twisted pairs
- Control Board
- CB-485
- USB Adaptor (USB-SER)
PC with
- USB extension cable optional
Communication
Manager
Jumper ON
J1
(First & Last CB-485)
CAT 5
Jumper
OFF J1
CAT 5
Jumper ON
J1
(First & Last
CB-485)
TX
RX
LED
LED
GND
TD
RD
NC
Current Draw - 110 mA
CB-485
Jumpers
RS485 IN
RS485 OUT
M
+
-
+
-
+
-
+
-
ON Run
J1
Run
Program
TX
RX
LED
LED
GND
TD
RD
NC
Current Draw - 110 mA
CB-485
Jumpers
RS485 IN
RS485 OUT
M
+
-
+
-
+
-
+
-
ON Run
J1
Run
Program
TX
RX
LED
LED
GND
TD
RD
NC
Current Draw - 110 mA
CB-485
Jumpers
RS485 IN
RS485 OUT
M
+
-
+
-
+
-
+
-
ON Run
J1
Run
Program
94
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