MRC MCX-5000 Series, Руководство пользователя

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MARINE RADIO CO.,LTD.
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Subject : Auto Exchanger Page : (13 / 46)
Date : 2010.10.13 Doc. : MCX-5000S_ENG_R1
(QAS-ADD-008/1/10.10.13) manual\pabx\mcx-5000S\MCX-5000S_eng.doc
( MARINE RADIO CO., LTD.) MRC
2 General
1.1 Planning
The installation should be planned in details before commencing. The cables should be listed in a cable
plan, with number of pairs etc. The location of each unit in the communication system should be
planned to obtain maximum performance and user availability.
1.2 Power
The operating power is 220VAC 60Hz as primary, and 24VDC as backup. With automatic switching
between primary and secondary power source.
1.3 Marking
Each cable is to be marked with cable numbers.
Each conductor is to be marked with the specific termination numbers.
Please note that MRC uses plug-able screw terminals in all units.
1.4 Fastening
Where applicable, the cables and the conductors shall be clamped to the structure with cable ties.
1.5 Preservation
Prior to, during, and after installation the equipment must be handled with care. And protected against
acid holding fluids, pollution, moist, impacts etc.
This is in order to avoid damaged equipment, for which MRC will claim void warranty.
1.6 Cable Requirements
All cables used in the MCX system must be of approved ship cable type.
Requirements:
- Common outer screen
- Individually twisted pairs
- Recommended conductor size is 0.75 mm²
- All cabling in the MCX must be a separate network.
- Do not combine different systems in the same cable. This is to prevent disturbance and noise
caused by interference.
1.7 Screen Connection
In order to obtain maximum
performance after installation, it is
necessary to terminate the cables
ground the screens in a good
manner.
The cables are to de-isolated by
removing approximately 200
mm of the outer insulation.
Then the screen braid is cut off
approximately 30 mm longer than
the outer
isolation. The conductors are to be
de-isolated and ferruled before
they are inserted into the terminals.
The outer screen is clamped to the
cable fixing rails inside the cabinet.
Cable ties of a conductive type
(metal) are recommended for best
result. The cable outer screens are
to be terminated as shown. Conductive type of cable ties is
recommended to obtain best possible screen connections.