Keyscan Technical Guide (PC109x - 04.12)
71
Figure 48 - Example of CB-485 Inter-building Communication
If using CPB-10-2s, contact Keyscan technical support.
Keyscan RS-232 Data Cable
Keyscan’s RS-232 data cable has multiple applications for various Keyscan products and as such has a generic
configuration for the loose wires. When it is used in applications where the shield must be connected to the
metal enclosure ground lug, such as in Figure 7, Keyscan suggests one of following wiring options:
• Option A – trim back the shield wire to approximately 0.5” (1.5 cm) then solder an appropriate length of
green # 20 AWG wire to the shield and terminate the shield at the ground lug
• Option B – remove sufficient cable jacketing allowing the shield wire to return to the ground lug from the
communication connector. Trim the 5 communication wires to a length of 2.5” (6.5 cm) and strip the ends
Insulate the shield wire with a length of tubing to prevent it from shorting. Terminate the shield.
Configure a 9-pin RS-232 Data Cable
In the event that you are establishing a serial connection from the PC either to the control board or a
communication board and you have to make a 9 pin, RS-232, data cable, ensure that you follow the pin to
wire colour assignments on the following diagram. It is strongly recommended that you use a Keyscan 9 pin,
RS-232 data cable (Keyscan part # 40-2322) which is manufactured specifically for Keyscan serial data
connectivity.
Figure 49 – RS-232 Data Cable Connections
-Shield
1 - White
2 - Black
3 - Red
4 - Brown
5 - Green
6 - shorted to pin 7
7 - shorted to pin 6
8 - not connected
9 - not connected
DB9 Connector
(Front View)
1
2
3
4
5
6
7
8
9
KI-00152E-07-11
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