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SpectraLink Corporation Installation and Operation
Link WTS – Link 150 M3 MCU
ESD Bonding Straps To provide static protection for the MCU.
Link Wireless Telephones The correct number of handsets for this
installation.
Battery Chargers Link Wireless Telephones require a Battery Charging system,
usually one per handset.
Battery Packs The system may have one or more spare Battery Pack per
handset, depending on the needs at your location.
Documentation and Training Information This includes a user guide for
each handset and the CD which contains all referenced documents.
6.3 Install MCUs
Mount MCUs to Wall
The MCUs are designed to be mounted on a backboard of 3/4” plywood, securely
fastened to the wall. Mount the MCUs vertically, side by side, using 2.75” spacing
center-to-center for each unit. Do not stack MCUs on top of one another.
To mount the MCUs:
1. Using a 1/8” drill bit, drill four pilot holes, on 2” x 12.1” centers.
2. If installing only one MCU, insert the #8 x 3/4” screws in the pilot holes and
tighten, leaving a 1/8 to 1/4” gap from the wall.
3. If installing more than one MCU, the ESD bonding strap(s) must be installed
between adjacent units:
3.1 Remove the screws from the bottom of adjacent units.
3.2 Place the ESD strap over the pilot holes that span two units, and hold it
against the plywood backboard.
3.3 Place the star washer on top of the ESD strap.
3.4 Insert the #8 x 3/4” screw and tighten to leave 1/8 to 1/4” gap from the
wall.
3.5 Repeat for all ESD straps.
4. Slide the MCU over the screws until it drops in place.
5. Tighten screws fully.
6. When installing an analog interface MCU (SCA-5XX), the grounding terminal in
the rear panel of each unit must be electrically connected to earth ground.
Consult the NEC and local codes for instructions on making the connection to
the ground.
Connect MCU to Demarc Blocks
Connect the male RJ-21 connector from the appropriate demarcation block to the
designated RJ-21 connector (
A or B) on each MCU. Secure the cables using the
keeper.
PN: 72-0075-01-F.doc Page 24