Keyscan Inc. – Technical Guide (PC109x - 04.15)
59
Single ACU Communication
This section outlines ACU to PC communication where only a single control board is on the communication
loop. Keyscan supports the following connectivity modes:
Serial (direct RS-232)
USB (USB 1.1 & USB 2.0 supported)
Network (TCP/IP)
For connecting multiple control boards on a communication loop, refer to the CIM Communication section.
If you are connecting a Keyscan legacy communication board – CPB-10-2, CB-485, CB-485M, or MC9600
modem – refer to the technical guide in the legacy folder on the Keyscan document CD or refer to the product
installation document that was included with the product.
Important
Do not mix CIM, CPB-10-2 or CB-485 boards on the same communication loop.
NETCOMs
The technical guide includes only operational connections for NETCOM devices. For programming instructions
and temporary serial programming connections, refer to the specific installation guide that was included with
the NETCOM device.
Multiple Building Communication on a WAN
A point-to-point private network is required where NETCOMs are used on a LAN/WAN (TCP/IP) that integrates
building-to-building communication.
For reverse network communication applications, a public or private network is required with a path and
connectivity between the host location and the remote location. Reverse network communication requires a
license from Keyscan.
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, 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.
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