Clear-Com LQ series - Technical Specifications; Audio; Pin-outs 2-wire

71
399G116 Rev D
15 Technical specifications
15.1.1 Audio
Audio
2-wire LQ 4-wire LQ
Frequency
response
50-10 kHz Frequency
response
100-12 kHz
Codec OPUS Codec OPUS
Input/output gain -3 to +3 dB Input/output gain -12 to +12 dB
Maximum input
Clear-Com
0dBu (nominal
-18dBu)
Input impedance 100K transformer
isolated
Maximum input
RTS
+6dBu (nominal -
12 dBu)
Output impedance 120R transformer
isolated
Termination 200R selectable Maximum output +18dBu (nominal
0dBu)
On-Noise
<-70dBu
Noise
<-75dBu
Off-Noise <-85dBu
Call drive voltage
Call sense voltage
Clear-Com
>11V
<4V
Call drive and
sense
Clear-Com
Call drive voltage
Call sense voltage
RTS
-7dBu 20kHz
-32dBu 20kHz
RMK (Remote
microphone kill)
Clear-Com and
RTS
15.1.2 Pin-outs 2-wire
Pin
Clear-Com
RTS
Pin 1
Ground
Ground
Pin 2 DC power
(30V)
DC power (30V)
Duplex audio 1
Pin 3
Duplex audio
Duplex audio 2