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Figure 74 – Multiple ACU Communication - NETCOM2 or NETCOM6/CB-485
to network
+ -
12VDC
12VDC
power adaptor
Reset
Button
NETCOM2 or
NETCOM6
RJ45
Jack
to network
10/100 Base-T
NETCOM LED Legend
- RS-232 indicates 9-pin terminal connected
- RX LED indicates PC polling ACU/ECU
- TX LED indicates ACU/ECU replying to PC
- ON LED indicates unit receiving power
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)
H2
Common
AUX Inputs - E
Note
If the NETCOM2 or NETCOM6 is mounted in the metal enclosure, the shield of the serial cable may be
connected to GND as shown. If NETCOM device is mounted outside the metal enclosure, the shield must
be insulated and connected directly to the metal enclosure ground lug. See Grounding Communication
Shield.
Keyscan Technical Guide (PC109x - 04.12)
Host PC with
Communication Manager
12 VDC Power Adaptor
(NETCOM2H or NETCOM6H)
12 VDC to DPS15
(NETCOM2 or NETCOM6)
Current 270 mA
RX TX
RS-232
ON
LEDs
LEDs
I/O
DTR
DCD
9-pin Male
RD
Black
Connector
TD
Red
GND
Green
Use either the 9-pin
connector or the
terminal block.
Do not use both to
connect to the ACU.
Connect CB-485 ribbon cable
to CPB/CB MODULE terminal
on control board.
Important
Jumper ON
H1
J16 – G to
activate CPB/
CB MODULE
(H1) terminal.
TX
RX
LED
LED
CB-485
Parts List
- PC with network access
- CAT 5 Cable - 2 twisted pairs
- Control Board
- CB-485
- NETCOM2 or NETCOM6
- RS-232 Data Cable
- 10/100 Base-T Cable
TX
LED
Green & Shield
GND
Red
TD
Black
RD
NC
RS-232 shielded
22 AWG cable
J1
30 m (100 ft) max
@ 9600 BPS
Jumper ON 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
KI-00177E-07-11
97
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