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Synel Industries Ltd.
Communication
Stand-Alone Terminals
4.
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
As of Master version 3.20 there is an additional option “Send offline list to
Access units”. All card numbers that are marked as (see Falcon | Personnel |
Card Type | Active - Allowed offline)
Active - Allowed offline
will be sent
from the Master to the terminals. When communication is stopped the Termi-
nal will enable access for the cards as mentioned above.
PRX-40/A supports this option as of version 2.04.
SY-11 supports this option as of version 1.07.
4.1
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 communica-
tion 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.
