Interface
The HelixNet System
Effortless Management
The HelixNet HLI-2W2 is a dual 2-wire partyline interface module for the HMS-4X main station.
The HelixNet IP networking guide provides specifications, best practices and guidance for the integration of HelixNet into an existing or new IP network.
2-wire Partyline: (2) 3-pin XLR-F
Compatibility: Clear-Com, RTS configurable with Call and Remote Mic Kill
Termination: External System
Nulling: R-L-C hybrid; user initiated Auto-Calibration with Echo Cancellation
Power: 25mA from external system
Voltage: 20-30V DC (max)
Maximum Level Before Clipping: 6dBu
Nominal Input Level: -18dBu (C-C), -12dBu (RTS)
Input Impedance: >= 10KΩ bridging
Route to 4-wire input at 0dBu in:
Frequency Response: 100Hz – 10kHz ±3dB
Distortion: <0.2% THD @ 1kHz
Noise: <-55dBu
Route from a 4-wire output at 0dBu out:
Frequency Response: 40Hz – 10kHz ±3dB
Distortion: <0.2% THD @ 1kHz
Noise: <-75dBu
2.2 x 7.4 x 1.5in (HxWxD)
(57 x 187 x 39mm)
13oz (0.38kg)
IPv4 – Unicast Audio and Control
mDNS – Multicast Device Discovery
Layer 3 routable with mDNS function limitations
WavPack – Audio Codec
Unicast:
Port 80 TCP –System Management
Port 6001 TCP – System Management
Port 6001 UDP – Audio Streams
Multicast:
Port 5353 UDP – mDNS, Names, Discovery
Endpoint Resource Use: 1 per active port
Bandwidth:
300 (max) kbps from each active port to HMS
1200 (max) kbps from HMS to each active port
Network Jitter Tolerance:
<= 128ms jitter buffer per audio stream receiver automatically adjusted to network performance
QoS Tags:
DSCP=46, High Priority / Expedited Forwarding (EF)
System reserved IP range:
10.0.0.0/8 for endpoints