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Figure 70 – Multiple ACU Communication – USB Adaptor/CB-485 (RS-232)
to USB port (may
require USB
extension cable)
Use 3 loose
RS-232 wires.
485 OUT 485 IN
+ TX - + RX -
Unused
Red
conductors taped
Black
back separately.
Note
USB (RS-232) communication is slower than
direct serial or NETCOM communication.
Do not connect USB adaptor to modem.
* Insulate shield with PVC tubing such as Alpha #16 or
comparable insulator and connect to ground lug.
CPB/CB MODULE
(COM4)
Control
Board
(PC 109x)
H1
H2
Common
AUX Inputs - E
TX
LED
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
KI-00173E-07-11
Keyscan Technical Guide (PC109x - 04.12)
PC with
Communication
Manager
RS-232
22 AWG shielded
Tape
cable
back
100 ft (30 m)
Green
shield.
maximum
@ 9600 BPS
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.
RX
LED
CB-485
Parts List
- PC (with USB port)
- CAT 5 Cable - 2 twisted pairs
- Control Board
- CB-485
- USB Adaptor (USB-SER)
- RS-232 Data Cable
- USB extension cable optional
to ground lug
TX
LED
Green
GND
Black
TD
Red
RD
NC
Jumper ON
J1
J1
(First & Last
CB-485)
TX
LED
GND
TD
RD
NC
CAT 5
J1
Jumper
OFF J1
TX
LED
GND
TD
RD
NC
CAT 5
J1
Jumper ON
J1
(First & Last
CB-485)
RX
LED
Current Draw - 110 mA
CB-485
Jumpers
RS485 IN
RS485 OUT
M
+
-
+
-
+
-
+
-
ON Run
Run
Program
RX
LED
Current Draw - 110 mA
CB-485
Jumpers
RS485 IN
RS485 OUT
M
+
-
+
-
+
-
+
-
ON Run
Run
Program
RX
LED
Current Draw - 110 mA
CB-485
Jumpers
RS485 IN
RS485 OUT
M
+
-
+
-
+
-
+
-
ON Run
Run
Program
93
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