Clear-Com HLI-FBS - Manual (Page 156)

14.1.9 Helix Digital Partyline
Specification Description / value
Maximum level before clipping 6dBu
Nominal input level -18dBu (C-C) -12dBu (RTS)
Input impedance
>= 10KΩ bridging
The following specified for a circuit to a 4-wire output @0dBu in:
Frequency response 100Hz - 10 kHz ± 3dB
Distortion <0.2% THD @ 1kHz
Noise <-55dBu
The following specified for a circuit from a 2-wire input @0dBu out:
Frequency response 40Hz - 10kHz ± 3dB
Distortion <0.2% THD @ 1kHz
Noise <-55dBu
Auto-nulling and echo
cancellation Yes
RTS / Clear-Com selectable Yes
Termination External
Power 30V external
Table 14-9: Main Station: Partyline
14.1.10 Ethernet
Specification Description / value
Fast Ethernet standard 100BaseT only, Auto MDIX
Table 14-10: Main Station: Ethernet
156 HelixNet Partyline User Guide