Front Panel Controls and Connectors
Talk/Listen Switches: 32
Answer Back Switch: Configurable (None, 1 or 2)
Volume Controls: 2 (Main and Aux)
Headset Connector: 1 (XLR-4M or XLR-5F)
Panel Mic Connector: 1 (3-pin)
USB “A” Socket: 5V DC to 500mAh with short circuit and overload protection
Rear Panel Connectors
GPIO: DB-25F
Matrix: RJ-45 (single-channel)
Matrix (IP): RJ-45 (multi-channel)
Auxiliary Audio: DB-25M
Expansion Panel: RJ-45
DC Power: 4-pin DIN
Headset Audio
Earphone Impedance: From 32 Ohms
Output Power: 75mW into 50 Ohms for <1% distortion
Loudspeaker Audio
Frequency Response: 40Hz-20KHz +/- 3dB
Panel Microphone Input
Type: Electret
Level: 40-70 dBu
Impedance: 1700 Ohms +/- 10%
Headset Microphone Input
ype: Dynamic or Electret
Level: -40 – 0 dBu
Main Power Supply (External)
Voltage: 100/240 VAC +/- 10%
Frequency: 50 – 60 Hz
Power: 50W maximum
Environmental
Operating: +32º – +125º F (0º – +50º C)
Storage: +32º – +150º F (0º – +70º C)
Humidity: Between 20% and 90%, Non-Condensing
Dimensions
3.5 x 19 x 6.75 (HxWxD)
(89 x 483 x 172 mm)