Cloud Electronics PM16 - Manual (Page 46)

PM4/8/12/16 & PM4/8-SA Installation and User Guide v1.0 46
All other PMs on the network must be powered individually by external PSUs. DC
power is only connected internally at the CAN PORT OUT socket, so the ‘daisy-
chain’ data/audio connection cannot be used to pass power between PM units.
(with Digital Paging Interface)
Mixer
MIC INPUT PAGING ACCESS
Mixer
+12V Z1 Z2 Z3 Z4 Z5 Z6 Z7 Z8 0V
LF HF GAIN (dB)
50
1 2 3
10
+ - - +
(with Analogue Paging Interface)
IN OUT OUT
Termination OFF
CAT-5 CAT-5
CAT-5 CAT-5 CAT-5
(INCLUDING DC POWER FROM MIXER)
(INCLUDING DC POWER FROM MIXER)
Termination
OFF
Termination ON
IN OUT
Termination
ON
IN OUT
AUDIO OUT
ZONE ACCESS CONTROL
Termination
OFF
IN OUT
Termination
ON
PSU PSU
PSU PSU
CDPM
GAIN (dB)
IN THRU
-10 +10
Termination ON T
Terminations
PMs are shipped from the factory with the Digital Paging Interface termination ON.
This requires no alteration in single-PM systems, but in multiple-PM systems, only the
microphone at the ‘far end’ of the network may have its termination ON; all others
must have their terminations set OFF. See “Terminating the Digital Paging Interface”
on page 42 for details of how to set the termination.
In all systems, the Digital Paging Interface termination must be set ON in the host
mixer. Refer to the mixer documentation for details.
Using the analogue interface with multiple PMs
The ‘last’ mixer in the chain – that connected to the host mixer – may be connected to
the host via the analogue interface instead of the Digital Paging Interface, if the host mixer
is not equipped with the digital interface. Connect the PM in the same way as if it was the
only PM in the system, using separate audio and control cables. See “Connecting the PM
to a mixer via the analogue interface” on page 28 for full details.