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11 Communication
Interfacing the host is performed via the Master unit. Communication between the Master unit and
the terminals is performed at 19200 bps.
Downloading card numbers from Master to terminals
Downloading card numbers from Master to terminals is done using the “Send offline list to Access
units” option. All card numbers that are marked as Active - will be sent from the Master to the termi-
nals (see Falcon Manual). When communication stops the Terminal will enable access for the cards as
mentioned above.
12 Communication cables characteristics
Follow the listed guidelines when installing the communications cables:
• The cable should not be installed near EMI factors, such as:Motors, generators, alternators, and
transformers, Air conditioners, elevators, Radio/television transmitters, signal generators and
internal communication networks
• Cables: within 30 cm. (1 foot) of power lines of less than 5 KVA.
• Cables should not be within 60 cm. (2 feet) of power lines in the 5-10 KVA range.
Cables should not be within 1.5 meters (5 feet) of power lines of more than 10 KVA. The cables
should not run parallel to power lines for more than 15 meters (49 feet).
It is best to use a single cable for the communication line. If it is not possible to use a continues cable
only one indoors connection is allowed, constructed in one of these options:
1. Using two connectors with appropriate shielding and cover.
2. Using a connection box.
For aerial installation, use N.Y.Y. shielded cables.