Audio
| 2-wire LQ | 4-wire LQ | ||
|---|---|---|---|
| Frequency response | 50 Hz - 10 kHz | Frequency response | 100 Hz -20 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 | ||