9 helix digital partyline, 10 ethernet, Helix digital partyline – Clear-Com HLI-FBS User Manual
Page 121: Ethernet
10.1.9 Helix Digital Partyline
Specification
Description / value
Maximum level before clipping
6 dBu
Nominal input level
-18dBu (C-C) -12dBu (RTS)
Input impedance
>= 10KΩ bridging
The following specified for a circuit to a 4-wire input @0dBu in:
Frequency response
100Hz - 10 kHz ±3dB
Distortion
<0.2% THD @ 1 kHz
Noise
<-55dBu
The following specified for a circuit from a 4-wire output @0dBu out:
Frequency response
40 Hz - 10 kHz ±3dB
Distortion
<0.2% THD @ 1 kHz
Noise
<-75dBu
Auto-nulling and echo cancellation
Yes
RTS / Clear-Com selectable
Yes
Temination
External
Power
30V external
Table 48: Main Station: Partyline
10.1.10 Ethernet
Specification
Description / value
Fast Ethernet standard
100BaseT only, Auto MDIX
Table 49: Main Station: Ethernet
119
HelixNet Partyline User Guide