SpectraLink
Link 150 Installation and Operation
12/28/98
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2.3 The Rear Panel of the MCU
The MCU's rear panel contains the ports that power the unit and connect it to the
telephone system, the Base Stations, and the alarm notification device.
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1.
Telephone Lines – A standard RJ-11 connector is used to connect each line from the
telephone system to the MCU. There are three sizes of MCU, each with a different
number of ports. The X in the following part numbers represents the type of interface
on the MCU.
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MCA-450 – no ports; used only to provide extra Base Stations on a
multiple MCU system
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MCX-452 – 8 ports
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MCX-454 – 16 ports
2.
Serial Number and Model Number – SpectraLink Customer Support will request
the serial number when you call them. The model number indicates the MCU type.
MCA-450, 452, or 454 are analog units; all other model numbers are digital units.
3.
Power Jack – Connects to the AC adapter to supply power to the system. The label
next to the power jack is color coded to the label at the end of your power supply.
Use only the provided Class II AC Adapter with
output 24VDC, 1A.
4.
Base Station Ports – Provide connection for up to four Base Stations.
5.
IPC IN Port – Used only in systems with more than one MCU. The first unit in a
chain of MCUs has no connection to the IN Port.
6.
IPC OUT Port – Used only in systems with more than one MCU or with an Open
Applications Interface (OAI) Gateway. The first unit’s OUT Port connects to the
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