HMS-4X

HMS-4X

4-Channel 1RU Digital Main Station

 

HelixNet System Operation

  • HelixNet System Master
  • 6 HMS can link over LAN and WAN
  • Supports up to 64 endpoints on HelixNet system
  • 12 partyline channels. Expandable to 24 channels via optional license

Main Station

  • Easy to use CCM™ browser configuration
  • Fast front panel control and configuration
  • Plug-and-go with auto discovery
  • Central upgrades from main station

User Station

  • Headset or hands-free support with speaker and mic
  • 4 Keysets freely assignable to channels
  • All Talk, Stage Announce, RMK and Program Audio level controls

Connectivity

  • 2 Powerlines for distribution of Ethernet to HelixNet user stations via XLR cables
  • 3 Expansion slots for HLI modules: Ethernet, fiber, 2-wire and 4-wire ports
  • Program Audio input and Stage Announce output
  • 4 Contact closure inputs and outputs

LQ Integration Options

  • LQ® linking for high density 2-wire, 4-wire and GPIO expansion
  • Agent-IC® natively integrated via optionally licensed LQ
  • SIP/VoIP integrated via optionally licensed LQ

The HelixNet HMS-4X main station is a combination of a system master and an intercom user station with XLR Powerline connections to user stations. HMS-4X hosts up to three HLI interface modules for external connectivity, including Ethernet and Fiber.

The HelixNet IP networking guide provides specifications, best practices and guidance for the integration of HelixNet into an existing or new IP network.

Awards

Item Part Number:
  • HMS-4X

Technical Specifications

Linking

HMS is required as the HelixNet Master. Link Group may include five additional HMS Members, including up to three LQ devices for a maximum of six HMS/LQ in Link Group. HMS link using HLI-ET2 or HLI-FBS modules over LAN/WAN connections. Link Group supports up to 64 endpoints (station/port).

Channels

System provides 12 or 24 intercom channels assignable to any user station or port in the system. Four Channels can be assigned to station. Program Audio can be associated with any channel with independent endpoint level control.

Roles

99 Roles for naming and dynamic configuration of user station settings. Role can be applied to multiple user stations.

Connectors

XLR Powerline: (2) Powerline, 3-pin XLR-M/F

Headset: 4-pin XLR–M

Program Audio: 3-pin XLR–F

Stage Announce: 3-pin XLR–M

Hot Mic/IFB Interface: 1/4″ (6.35 mm) TRS Jack

GPIO: 25-pin D-type female (4 GPI, 4 GPO, 5V)

USB: Type A & Micro AB (factory service use)

Microphone Pre-amplifier

Headset Mic Impedance: 200Ω (Dynamic)

Headset Mic Voltage: 1.7V (Electret selectable)

Limiter: +23dB

Route to 4-wire output at 0dBu:

Mic Gain: 60dB (Dynamic), 45dB (Electret)

Frequency Response: 200Hz – 10 kHz ±3dB

Distortion: <0.2% THD @ 1kHz

Noise: <-55dBu (Dynamic), <-65dBu (Electret)

Headphone Amplifier

Load Impedance: >32Ω

Output Level: +12dBu before clipping

Sidetone: -12dB (selectable)

Route from a 4-wire input at 0dBu:

Max Gain: 0dB

Frequency Response: 40Hz – 10kHz ±3dB

Distortion: <0.1% THD @ 1kHz

Noise: <-65dBu

Headphone Limiter: 0dB (selectable)

Loudspeaker Amplifier

Load Impedance: 8Ω

Output Level: +18dBu before clipping

Route from a 4-wire input at 0dBu:

Max Gain: 18dB

Frequency Response: 200Hz – 10kHz ±3dB

Distortion: <0.1% THD @ 1kHz

Noise: <-50dBu

Program Audio Line Input

Maximum Level Before Clipping: +18dBu

Nominal Input Level: 0dBu (selectable)

Input Impedance: >= 10KΩ

Route to 4-wire output at 0dBu:

Frequency Response: 20Hz – 10kHz ±3dB

Distortion: <0.2% THD @ 1kHz

Noise: <-65dBu

Stage Announce Output

Maximum Level Before Clipping: +18dBu

Nominal Output Level: 0dBu (selectable)

Output Impedance: <= 100Ω

Route from a dynamic headset:

Frequency Response: 300Hz – 12kHz ±3dB

Distortion: <0.1% THD @ 1kHz

Noise: <-55dBu

Hot Mic Output

Maximum Level Before Clipping: +12dBu

Nominal Output Level: 0dBu (selectable)

Output Impedance: <= 100Ω

Route from a dynamic headset:

Frequency Response: 300Hz – 12kHz ±3dB

Distortion: <0.2% THD @ 1kHz

Noise: <-55dBu

Powerline

Two independent network XLR Powerlines

Frequency Modulated Ethernet – OFDM

Output Voltage: ±29.5V DC

Output Current (Max): 1.5A per Powerline

Frequency: 100kHz-25MHz

Requires shielding integrity between Powerlines

Support up to 10 beltpacks each

Support up to 3-10 stations each

Use HelixNet Cable Calculator to validate load and cable distance.

Power

Input Frequency Range: 100 – 240V AC

Input Frequency Range: 50 – 60Hz

Power (Max): 250W

Input Power Connector: IEC-C14

Practical Power Range:

Power (Normal): 80-250W

BTU (Normal): 275-850BTU/hr

Dependent on hosted modules and powerline connected beltpacks

Environmental

32º – +104ºF (0 – +40ºC)
90% relative humidity

Dimensions

1.75 x 19 x 13in (HxWxD)
(44 x 483 x 320mm)

Weight

5.83lbs. (2.65kg)

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 – Web Interface, System Management, Expansion

Port 655 TCP – Link Group Audio/Database

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

Mandatory for HMS/HRM Expansion

Network Parameters

Link Group Endpoint Support: 64 Endpoints are user stations, active Interface ports, Program Audio inputs and LQ accounts.

Bandwidth:

300 kbps each audio input linking between HMS/LQ

Link Group audio sent dynamically between members

300-600 (max) kbps from each audio input to HMS

1200-2400 (max) kbps from HMS to each endpoint audio output

Network Jitter Tolerance:

<= 128ms 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 Range:

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

Associated Products