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Aria-34e
Digital Key Telephone System
4.5.7 BOARD INSTALLATION
WARNING: The power must be OFF when removing/installing all boards.
The printed circuit boards used to configure the system are referred to as PCB's.
The PCB's contain digital circuitry which, while extremely reliable, can be damaged by exposure
to excessive static. Please follow these precautions to when handling the boards minimise risk of
damage.
1. Keep all PCB's in their protective anti-static bags until they are installed in the KSU.
All PCB's that are not in protective bags should be handled by the card edges only.
2. Always use a ground wrist strip when handling PCB's. This will minimise the
possibility of static damage.
3. Never lay an unprotected PCB on a carpeted surface.
Note:
The 3-Pin Plug must be plugged into the 240 VAC GPO to provide the system
earth.
The system provides Universal slots so that the CO line/Telephone ratio can be configured freely
up to the maximum configuration according to the user's requirement and system limitations.
To install a PCB, hold the card on the mounting knobs and, with the component side facing up,
insert the card into the system‟s card edge connector firmly and tighten the screw(s). To remove
a PCB, simply loosen the screw(s) and withdraw card.
Aria Communications Pty Ltd.
A.C.N. 090 723 925
4-10
Installation
Rev 1.3
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