User guide
PM4/8/12/16 Installation and User Guide v2.2
15
recommended cable length between the Cloud host mixer and the “last”
PM should not exceed 50 m. If longer cable lengths are required, then an
external PSU should be connected to the PM.
2. Via the Analogue Port. The PM’s analogue interface allows for DC power.
The ‘+V’ and ‘0V’ terminals of the internal port connector should be wired
to the ‘+V’ and ‘0V’ pins respectively of the access connector at the Cloud
host mixer. This method of powering requires an additional core in
the access cable (the ‘0V’ connection will need to be made in any case for
the zone selection to function). Only one microphone may be powered
from the mixer in this way. The wiring diagram on page 19 illustrates this
connection.
Current considerations
The table below gives the current required by the various PM models:
PM Model Required Current
PM4 72 mA
PM8 83 mA
PM12 95 mA
PM16 107 mA
The following table shows spare DC current available from various Cloud host
mixers, etc., for powering additional items:
Host Available Current
DCM-1 650 mA
Z4ii 120 mA
Z8ii 190 mA
CX163 Use ext. PSU
CX263 Use ext. PSU
36/50 Use ext. PSU
46/50 80 mA
These gures apply to the host units without any active options installed, such as
internal Bose
®
EQ cards or remote plates. These options all consume power, so the
available current may be insufcient to power the PM. In such cases, an external PSU
must be used.