Clear-Com's Ethernet Linking Module HLI-ET2 plugs into any available slots on a HelixNet Main Station providing a dual LAN interface to connect to other Main Stations. RJ-45 connectors allow up to three HMS-4X Main Stations to be linked together forming a
Network Interface
CCM System Control
HMS and LQ Linking
User station connection
Dual port Ethernet switch
The HelixNet System
Networked Intercom System
Flexible cabling
12 Partyline channels; expandable to 24 channels via optional license
Program Audio distribution with independent level control
Effortless Management
Fast front panel control and configuration
Easy to use CCM browser configuration
Plug-and-go with auto discovery
Central upgrades from main station
The HelixNet HLI-ET2 is a dual port Ethernet switch 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.
SPECIFICATIONS:
Connectors
LAN A and B: (2) EtherCON RJ45
LAN Network Connection
10/100 Base-T
DHCP Capable
Configured for Daisy-Chaining
Dimensions
2.2 x 7.4 x 1.5 in. (HxWxD)
(57 x 187 x 39 mm)
Weight
13 oz (0.35 kg)
Network Specifications (Version 4)
Network Protocols
Ethernet IPv4 – Unicast Audio and Control
mDNS – Multicast Device Discovery
Layer 3 routable with mDNS function limitations
WavPack – Audio Codec
Network Ports
Unicast:
Port 80 TCP – System Management
Port 655 TCP – Link Group Audio/Database Communication
Port 6001 TCP – System Management
Port 6001 UDP – Audio Streams
Multicast:
Port 5353 UDP – mDNS, Names, Discovery, Linking, Expansion
Optional for device names and linking
Network Parameters
Endpoint Resource Use: None
Bandwidth:
300 kbps per audio input linking between HMS/LQ Link Group audio sent dynamically between members
Link Group audio sent dynamically between members
300-600 (max) kbps from an active audio input to HMS
1200-2400 (max) kbps from HMS to endpoint
Network Jitter Tolerance:
<= 128 ms jitter buffer per audio stream receiver automatically adjusted to network performance
QoS Tags:
DSCP=46, High Priority/Expedited Forwarding (EF)
Link-Local Default IP Address Ranges:
169.254.0.0/16
System Reserved IP Ranges:
10.0.0.0/8 for endpoints
172.23.0.0/16 for Link Group
Recommended Ethernet Switches
Managed Ethernet Switch – Layer 3
100/1000 Base-T ports for endpoints
1000 Base IP Trunks between switches
QoS Configuration
Energy Efficient Ethernet bypass option
IGMP Snooping bypass option
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