Interface
The HelixNet System
Effortless Management
The HelixNet HLI-4W2 is a dual 4-wire 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.
4-wire: (2) EtherCON RJ45
Maximum Level Before Clipping: 18dBu
Nominal Input Level: 0dBu (selectable)
Input Impedance: >= 10KΩ
Route to 4-wire output at 0dBu in:
Frequency Response: 20Hz – 10kHz ±3dB
Distortion: <0.2% THD @ 1kHz
Noise: <-65dBu
Maximum Level Before Clipping: 18dBu
Nominal Output Level: 0dBu (selectable)
Output Impedance: <= 100Ω
Route to 4-wire input at 0dBu in:
Frequency Response: 300Hz – 12kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-55dBu
2.2 x 7.4 x 1.5in (HxWxD)
(57 x 187 x 39mm)
13oz (0.38kg)
Ethernet 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