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6
Technical Data
6.1
Intercom Line
Line Impedance:
200
Ω
Line Level:
-12 dBu up to +6dBu maximum
Wire Type:
0,38 mm
2
(AWG 22), 2 conductor shielded mic
cable with <65pF/m
capacity and <70
Ω
/km overall DC resistance
Line Length (single channel):
up to 5000m
Signal to Noise, Single-Channel:
-70dBu
6.1.1
Signalling
RIEDEL Mode:
•
Call Signal Send/Receive:
20 kHz
±
500 Hz Sine wave, appr. –12dBu
•
Special Call Signal Send/Receive:
28 kHz
±
500 Hz Sine wave, appr. –
12dBu
•
Mic Kill Signal Send/Receive:
24 kHz
±
500 Hz Sine wave, appr. –12dBu
Clear-Com
®
Mode:
•
Call Signal Send:
+11 VDC
•
Call Signal Receive:
+4 VDC
6.2
Mic Preamp
Mic Impedance:
200
Ω
Headset Mic:
dynamic or electret with +6 VDC supply
Mic Gain:
40dB or 46dB (selectable via service mode)
Limiter Range:
20dB
6.3
Output Amp
Headset Output Level:
+20 dBu / 600
Ω
maximum
Headset Impedance:
> 50
Ω
(recommended 600
Ω
for low power
consumption)
Gain: 32dB