Cloud Electronics 44/50 - Manual (Page 5)

4 44/50: Installation and Operation Manual
9 Line 4 Priority
The Cloud 44/50 has a facility to allow fully automatic priority to a JukeBox or Spot
Announce Player on Zone 1 only. A priority switch (concealed behind the removable plate
on the front panel) is provided to select this facility. When the line 4 priority is in
operation, Zone 1 will operate normally until a signal is detected on line 4 upon which the
selected signal (usually background music) will mute, allowing the signal on line 4 to
operate with priority. Once the signal on Line 4 ceases, the selected music signal will
smoothly restore to its former level; the time taken for this restoration can be set at 3, 6 or
12 seconds by fitting the appropriate jumper (J5) on the upper printed circuit board. The
factory default restoration time is 3 seconds. (See PCB layout on page 7)
10 Microphone Inputs
Two microphone inputs are provided and the microphone amplifier is an electronically
balanced, transformer-less design configured for optimum low noise performance.
The input impedance is greater than 2k
Ω
and is suitable for microphones in the 200
Ω
to
600
Ω
range. Inputs are via gold plated 3 pin XLR type connectors with latch and these
are positioned on the rear panel. For balanced microphones, connect the cable screen to
pin 1, the in-phase signal (+Ve) to pin 2 and the reverse phase signal (-Ve) to pin 3.
For unbalanced microphones, connect a wire link from pin 1 (ground) to pin 3 inside the
XLR cable mounted plug; use pin 1 as ground (cable screen) and pin 2 as hot.
11 Paging Microphone
The Cloud CPM-4 four zone paging microphone is available as an optional accessory for
the Cloud 44/50; the unit features zone selection switches which allow paging to all four
zones in any combination and in addition, a ‘call all’ button is provided for convenient
announcements to all zones.
The paging microphone is supplied with:
•
2 cable glands to accept 2-6mm cable
•
2 cable glands to accept 4-8mm cable
•
2 grommets
•
A 9-core/female sub D-type cable assembly that should be fitted to the 44/50
motherboard.
•
A Sub D-type male connector
•
4 M16 Nuts
NOTE: Should you wish to order a CPM-8 for use with the 44/50 then you must also
order a 44/50 paging mic installation kit as it does not come as standard.
A zone can be accessed and reset with its relevant push/on push/off toggle switch. There
is a jumper (J9) inside the CPM-4 that when positioned ON will configure the CPM-4 to
automatically reset any accessed zone after an announcement has been made. The
factory default for this jumper is OFF with J9 in the default position each zone must be
reset manually after an announcement.
The CPM-4 can be configured internally to activate a pre-announcement chime if
required. For applications where the speakers are located where the announcer cannot
hear them, a chime sounder internal to the CPM-4 can be switched on or off as required
to help avoid any announcements being made before the chime has finished.