Clear-com HLI-4W2 Interface Module for HMS-4X Main
Station
Clear-com HelixNet HLI-4W2 is a dual 4-wire
interface module for the HMS-4X** main station.
Interfacing
HLI-4W2’s 4-wire analog transformer and
electrically isolated interfaces are assignable to any channel in the
HelixNet system and provide discreet analog linelevel input and output. The
4-wire ports allow connectivity to any 4-wire intercom system, cameras,
telephone circuits, stage announce, recorders or any other generic audio
devices. Level control and VOX/Gate capability is provided for each
interface to accommodate the connected device.
HLI-4W2 include call
signaling circuits when used with compatible Clear-Com devices such as
Eclipse® HX matrices and FreeSpeak II® Base II base stations
Local and Central Management Options
HHLI-4W2 can be added to any HMS-4X main station
with an available option slot. Once installed, any channel can be
independently assigned to either 4-wire port locally on the HMS-4X** front
panel or centrally from the Core Configuration Manager™ (CCM*).
*CCM
requires HLI-ET2
**HMS-4X is a legacy product as of 2022
Interface
• 4-wire interface for HMS-4X(2)
• Transformer isolated
• Level and
VOX control
• Clear-Com call signal
The HelixNet System
• Wired Partyline - Networked
• Flexible cabling
• Up to 24 Channels – Licensed
• Program Audio user
level control
Effortless Management
• Fast
front panel control & configuration
• Easy to use CCM browser
configuration
• Plug-and-go with auto discovery
• Central upgrades
from main station
• Connectors
4-wire: (2) EtherCON RJ45
• 4-wire Option Module Inputs
Maximum Level
Before Clipping: 18dBu
Nominal Input Level: 0dBu (selectable)
Input Impedance: >= 10KO
Route to 4-wire output at 0dBu in:
Frequency Response: 20Hz - 10kHz ±3dB
Distortion: <0.2% THD @
1kHz
Noise: <-65dBu
• 4-wire Option Module Outputs
Maximum Level Before Clipping: 18dBu
Nominal Output Level:
0dBu (selectable)
Output Impedance: <= 100O
Route to
4-wire input at 0dBu in: Frequency Response: 300Hz - 12kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-55dBu
•
Dimensions
2.2 x 7.4 x 1.5in (HxWxD)
(57 x 187 x
39mm)
• Weight
13oz (0.38kg)
• Network Specifications (Firmware Version
4.2+)
Network Protocols
Ethernet IPv4–Unicast Audio
and Control
mDNS–Multicast Device Discovery
Layer 3
routable with mDNS function limitations
HTTP–Management RTP–Audio
Transport
WavPack–Audio Codec
• Network Ports
Unicast:
Port 80 TCP–System Management
Port 6001
TCP–System Management
Port 6001 UDP–Audio Streams
Multicast:
Port 5353 UDP–mDNS, Names, Discovery
• Network Parameters
HMS-4X 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=41,
Assured Forwarding (AF)
System Reserved IP Range: 10.0.0.0/8 for
endpoints
