Keyscan Technical Guide (PC109x - 04.12)
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Communication
This section outlines ACU to PC communication and ACU to ACU communication. Keyscan supports the
following connectivity modes:
• Serial
• USB (USB 1.1 & USB 2.0 supported)
• Network (TCP/IP)
• Wireless Network (TCP/IP)
• Modem
Communication is divided into 2 parts:
• Single ACU Communication
• Multiple ACU Communication
Important
Do not mix CPB-10-2 boards with CB-485 boards on the same communication loop. Refer to page 53 for
setting control board communication baud rates. Be sure the correct baud rate of the PC's communication
port is set in the Client software. Verify the PC communication port is active and is dedicated for access
control communication.
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.
Modem Communication
Modem communication requires independent analog phone lines and modems at both the PC and the remote
ACU location. We recommend using either the CB-485M or MC9600 and the MC33H modem because they are
manufactured by Keyscan specifically for our access control systems. Setup strings for the modems are
defaulted in the Keyscan software. Other third party modems may be used; however, you may encounter
problems. Do not connect a CB-485M, MC9600 or MC33H modem to a digital phone line. If digital phone lines
are in use, contact your phone service provider for converter equipment.
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