SpectraLink Corporation Installation
Link WTS – Link 3000 MCU
Part Number: 72-0059-01-J.doc Page 19
Wall Mounting Dimensions
4.3 Prepare Power for Shelves
The Link 3000 MCU requires a -48V DC power source. The -48V connection is
comprised of three wires: -48, +48 (neutral), and ground.
SpectraLink recommends that a licensed electrician install the -48V power source. It
must be installed according to current National Electrical Code (NEC) or National
Fire Protection Code standards, in accordance with all local and municipal electrical
code recommendations.
Use of 14 AWG wire is recommended.
See section 5.5
Connect Power to Shelves
for more information on power connections.
When connecting the -48 V DC system to power, note the
following precautions:
A 30 amp circuit breaker must be present on the non-grounded DC
circuit conductor, and the installer must ensure that means are provided
for connection of the equipment to the DC source by permanent wiring
methods, and no disconnecting device is located in the grounded DC
circuit conductor between the point of connection to the supply and the
point of connection to the grounding electrode and equipment
grounding conductors.
4.4 Run Cables to Base Station Locations
The Base Station locations should be designated on the building floor plans provided
to the field service engineer. Base Stations can be mounted easily on raised or
