Comdial DXP Plus Series, Руководство пользователя

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You can configure the system so that a maximum of 29 of these telephones can dial simultaneously.
•
services board circuitry that supports one telephone plus one receiver card that supports four telephones
provides support for five simultaneously dialing telephones
•
upper expansion cabinet interface board with three receiver cards supports 12 simultaneously dialing telephones
•
lower expansion cabinet interface board with three receiver cards supports 12 simultaneously dialing telephones
If you add the maximum of five auxiliary boards and install four receiver cards on each board, you can increase
the simultaneous dialing capacity to 109 telephones but you reduce the maximum telephone capacity to 384. (The
total is 788 telephones with two telephones per station port sharing the same extension number.)
1.2.1 Calculating Your Receiver Card Needs
You can use the following formula to determine how many receiver cards that you must install in your system.
(Simultaneous Dialing Telephones) - (1 Telephone Supported By Services Board)
( 4 Telephones Per Card)
= Receiver Cards
As an example, the system maximum is as follows: (110 - 1)
÷
4 = 27 cards
If you are not sure how many telephones will dial at the same time in your system, you can use the following
typical system averages and formula to arrive at an usable estimate.
A typical telephone system, experiences the following call traffic percentages. Your system may be similar.
•
Light Call Traffic = up to 15 percent of the telephones dial simultaneously
•
Moderate Call Traffic = up to 20 percent of the telephones dial simultaneously
•
Heavy Call Traffic = up to 30 percent of the telephones dial simultaneously
(Percent Of Simultaneous Dialing) x (Installed IST Telephones) = (Simultaneous Dialing Telephones)
An an example the system maximum is as follows: .286 x 384 = 110 telephones
1.3 Complying With Underwriters Laboratories Regulations
Per The Underwriters Laboratories regulation 1459, 2nd edition, be aware of the following precautions when
installing telephone equipment that is to be directly connected to the telephone company network:
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Never install telephone wiring during a lightning storm.
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Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
•
Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the
network interface.
•
Use caution when installing or modifying telephone lines.
Installing The IST Station Board IMI89–184
Installing The IST Station Board – 3