User guide

PM4/8/12/16 Installation and User Guide v2.2

shafts are still visible. Slide the PM over the screwheads using the keyhole slots, so

that the rubber feet act as spacers between the PM baseplate and the wall. If the PM

is not tight against the wall, remove the PM, adjust the length of screw protruding and

try again. Repeat until a good tight t is obtained. Refer to the illustration below for

drilling instructions.

Fitting the MI100166 gooseneck microphone

The standard gooseneck mic supplied with the PM Series is 300 mm in length, and

this may be inconveniently long if the PM unit is wall-mounted. A 140 mm version,

Part No. MI100166, may be ordered separately from Cloud Electronics, and tted

instead.

To replace the gooseneck mic, remove the baseplate of the PM unit as detailed on

page 12. It will be seen that the thin twin-and-screen cable from the gooseneck itself

terminates in a screw terminal connector on the right-hand side of the PCB (see

page 32 for location of this connector). (Note that this connector is also used for

the internal chime speaker.) Disconnect the gooseneck by undoing the three relevant

screw terminals on the connector.

The gooseneck itself may now be removed by undoing the 14 mm nut securing it to

the casing – a box spanner is the best tool for this.

Fitting the MI100166 gooseneck assembly is the reverse procedure. Fit the gooseneck

rst and tighten the securing nut; then reconnect the twin-and-screen cable to the

connector block, observing the polarities shown on the pcb silk-screening adjacent to

the connector. Then replace the baseplate.

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Wall Mounting Holes

All dimensions in mmPM baseplate drilling details Not to scale