The CX4 interfaces with your fire alarm system. It cuts the music sound level and provides a priority override.
Here are the detailed specifications for the CX4.
|Gain||Normal operation, unity gain +0dB -1dB|
|Frequency Response||20Hz - 30KHz + 0.5dB -1dB|
|Distortion THD @ 1KHz||O/P +20dBU <.015% (Typically .007%)|
|Noise||< -90dBU EIN|
Max input level
> 30k Ohms
Max O/P level
+22dBU into 600R load
|Controls||Situated behind removable security panel|
|1 - Priority input level all channels
2 - Priority input level channels 3&4 (allows chans 3&4 to be lower than chans1&2)
3 - Limit threshold.(average) adjustable range -20dBU to +22dBU
4 - Peak threshold allows the peak limiter to be set above the average limit threshold
5 - Attenuation channels 1&2. Range 0dB to -60dB (factory setting -20dB)
6 - Attenuation channels 3&4. Range 0dB to -60dB (factory setting -20dB)
7 - Reset momentary action push button(can be set to automatic)
8 - Test momentary action push button. (For set-up and testing)
Set to Mic
Set to Line
|Internally selectable Mic - Line
XLR in and out
Low impedance. Balanced. Max gain 70dB
10K Balanced. Max I/P level +30dBU
|Visual indicators||Power - 2 x Green L.E.D.s.
Limit - Red L.E.D.
Peak - Amber L.E.D.
Priority override - Red L.E.D.
|Auxiliary connections||6 Way screw terminal connector|
|Control input||Pins 1 & 2 18V - 24V DC ( Voltage mode) Isolated switch contacts (Switch mode)|
|Remote indicator outputs||Pin 3 - Limit
Pin 4 -.Peak
Pin 5 - Priority
Pin 6 - OVE common
|Outputs will drive L.E.D.s. directly without series resistors. They will also drive suitable solid state relays to drive power supply voltage indicators.|
|Dimensions||19" rack mounting - 1RU - Width 482mm (19") Depth 206mm (8.1") Height 44mm (1.75")|
|Finish||Front - and Rear panels- Black anodized aluminium with silver notation which will not rub off in use.
Case - black plastic coated steel.
110 - 115V AC. Fuse 500mA Anti Surge (slow blow)
200 - 240V AC. Fuse 250mA Anti Surge (slow blow)
CX4 - Fire Alarm Priority & Sound Level Limiter.