SpectraLink 150 M3 MCU manual Install MCUs, Mount MCUs to Wall, Connect MCU to Demarc Blocks

SpectraLink Corporation Link WTS Installation and Operation

∙Link Wireless Telephone s – The correct number of Wireless Telephones for this installation.

∙Battery Chargers – SpectraLink Wireless Telephones require a battery charging system, usually one per Wireless Telephone.

∙Batteries – The system may have one or more spare batteries per Wireless Telephone, depending on the needs at your location.

∙Documentation and Training Information – This includes a Link Wireless Telephone User Guide for each telephone.

5.3Install MCUs

Mount MCUs to Wall

The MCUs are designed to be mounted on a backboard of ¾ inch plywood, securely fastened to the wall. Mount the MCUs vertically, side by side, using 2.75 inch 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 inch by 12.1-inch centers.

2.If installing only one MCU, insert the #8 x 3/4 inch screws in the pilot holes and tighten, leaving a 1/8 to 1/4 inch gap from the wall.

3.If installing more than one MCU, the ESD bonding strap(s) must be installed between adjacent units:

3.1Remove the screws from the bottom of adjacent units.

3.2Place the ESD strap over the pilot holes that span two units and hold it against the plywood backboard.

3.3Place the star washer on top of the ESD strap.

3.4Insert the #8 x 3/4 screw and tighten to leave 1/8 to 1/4 inch gap from the wall.

3.5Repeat 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.

Part Number: 72-0075-01-C-W.doc Page 19