HelixNet HXII-RM/HRM-4X 1RU 4-Channel Intercom Remote User Station

The HelixNet HXII-RM/HRM-4X is a cutting-edge 1RU 4-channel intercom remote user station, integral to Clear-Com's HelixNet digital network intercom system. This user station excels in delivering high-definition audio and user-friendly control, suitable for various professional settings such as broadcasting, live events, and production environments. Designed to fit seamlessly into 1RU racks, the HXII-RM/HRM-4X offers a robust solution for managing complex communication needs with ease and reliability.

Its compact design accommodates four independent intercom channels, each featuring dedicated controls and indicators. This allows users to manage multiple communication lines efficiently. The HXII-RM/HRM-4X integrates smoothly with other HelixNet components, providing a flexible and scalable communication solution. Whether in a dynamic live broadcast setting or a high-demand studio environment, the HXII-RM/HRM-4X ensures superior performance and durability.

The HXII-RM/HRM-4X supports a range of system hosts including Arcadia and HMS-4X, offering versatile connectivity options. It can be powered via AC adapter, PoE, or Powerline, ensuring adaptability to different setups and power requirements. The unit's advanced digital technology guarantees clear audio transmission and reception, making it a reliable choice for professionals who need seamless communication and high operational efficiency.

Key Features

• 1RU form factor for streamlined rack integration
• Four independent intercom channels with dedicated controls
• Supports up to 128 HelixNet User Stations with Arcadia, and up to 64 endpoints with HMS-4X
• Multiple power options including AC, PoE, and Powerline
• Advanced digital technology for high-quality audio performance
• Robust construction designed for demanding environments

Technical Specifications

Dimensions
1.75" x 19" x 6.4"
Weight
4 lbs

HelixNet System Hosts
Arcadia: Supports up to 128 HelixNet User Stations over Ethernet or Powerline via the HXII-DPL Powerline Device. Up to 24 Channels can be HelixNet Enabled using a Licensed Port for assignment to any HelixNet User Station keyset.
HMS-4X: Supports up to 64 endpoints (Remote Stations, Speaker Stations, Beltpacks, HLI-2W2, HLI-4W2, LQ port). User stations can connect directly to the 2 HMS-4X Powerlines or via optional HLI-ET2 module using HXII-DPL Powerline Device or 3rd party network switch connection. HMS allows use of 12 channels which can be expanded to 24 using optional license.

Connectors
XLR Powerline: 3-pin XLR-M/F
Ethernet/PoE: EtherCON RJ45
Headset: 4-pin XLR–M
Gooseneck Mic: 3-pin Tuchel
Program Audio: 3-pin XLR–F
Stage Announce: 3-pin XLR–M
Hot Mic/IFB Interface: 1/4" (0.64 cm) TRS jack
GPIO: 9-pin D-type male (1xGPI, 1xGPO)
USB: Type A
DC Power: 3-pin KPJX-PM-3-S

Microphone Pre-amplifier
Headset Mic Impedance: 200Ω (Dynamic)
Headset Mic Voltage: 1.7V (Electret selectable)
Limiter: +23dB
Mic Gain: 60dB (Dynamic), 45dB (Electret)
Frequency Response: 300Hz – 10 kHz ±3dB, contoured for intelligibility
Distortion: <0.2% THD @ 1kHz
Noise: <-55dBu (Dynamic), <-65dBu (Electret)

Headphone Amplifier
Load Impedance: >32Ω
Output Level: +12dBu before clipping
Sidetone: -12dB (selectable)
Max Gain: 0dB
Frequency Response: 180Hz – 10kHz +3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-65dBu
Headphone Limiter: 0dB (selectable)

Loudspeaker Amplifier
Load Impedance: 8Ω
Output Level: +18dBu before clipping
Max Gain: 18dB
Frequency Response: 200Hz - 10kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-50dBu

Program Audio Line Input
Arcadia System Host: Local Listen Only
HMS-4X System Host: Local or Channel Assignable.
Maximum Level Before Clipping: +18dBu
Nominal Input Level: 0dBu (selectable)
Input Impedance: >= 10KΩ
Frequency Response: 20Hz - 10kHz ±3dB
Distortion: <0.2% THD @ 1kHz
Noise: <-65dBu

Stage Announce Output
Arcadia System Host: Local SA or Channel Assignable from front panel or Role
HMS-4X System Host: Local SA or Channel Assignable
Maximum Level Before Clipping: 18dBu
Nominal Output Level: 0dBu (selectable)
Output Impedance: <= 100Ω
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
Frequency Response: 300Hz - 12kHz ±3dB
Distortion: <0.2% THD @ 1kHz
Noise: <-55dBu

Logic Inputs - GPI
Assignable to talk, call, mic and headset keys
Input: 1
Style: Powered input, close contact to ground
Detection Voltage (Min): 3V
Input Voltage (Max): 5V
Output Voltage: 5V
Output Current (Max): 1mA

Logic Outputs – GPO/Relay
Assignable to talk, call, SA keys and channel events
Outputs: 1
Style: Power Relay
Normalized: Open or Closed, separate pins
Switching Voltage (Max): 30V
Switching Current (Max): 2A

Power
Voltage: 48V DC
Current (Max): 0.3A
Power (Max): 14.4W
BTU (Max): 49BTU/hr
Input Power Connector: KPJX-PM-3-S
AC Adapter - Inline:
Input Voltage Range: 100 - 240V AC
Input Frequency Range: 50 - 60Hz
Input Power Connector: IEC-C14
Output Voltage: 48V DC
Output Power (Max): 15W
Output Power Connector: KPPX-3-P
PoE - Power over Ethernet* IEEE 802.3af-2003 - Class 0
PSE: 15.4W DC max @ Power Source Req.
PD: 12.95W DC max @ Powered Device Draw
Powerline:
Input Voltage: ±29.5V DC
Input Current (Speaker Off): 0.3A
Input Current (Max): 0.5A
Powerline Utilization:
Remote Station (Local Power) = 1 beltpack
Remote Station (Speaker Off) = 2 beltpacks
Remote Station (Speaker On) = 3 beltpacks
Note the maximum Powerline capacity of the HMS-4X. Use HelixNet Cable Calculator to validate load and cable distance.

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

Network Specifications (Firmware Version 4.5+)
Network Protocols:
Ethernet IPv4–Unicast Audio and Control
mDNS–Multicast Device Discovery
Layer 3 routable with mDNS function limitations
HTTP–Management
I.V. Core–Decentralized Network Routing & Mixing
IVP-Proprietary intercom Audio and Control
WavPack–Audio Codec
Network Ports:
Unicast:
Port 80 TCP–System Management, Expansion
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 expansion mode
Network Parameters:
HMS-4X Endpoint Resource Use: 1-3
Bandwidth: 300-600 (max) kbps from Remote Station to Arcadia/HMS-4X dependent on use of Program Audio Input 1200-2400 (max) kbps from Arcadia/HMS-4X to Remote Station dependent on use of Stage Announce Output
Network Jitter Tolerance: <= 128ms jitter buffer per audio stream receiver automatically adjusted to network performance
QoS Tags: DSCP=34, Assured Forwarding (AF=41)
Link-Local Default IP Address Range: 169.254.0.0/16
System Reserved IP Range: 10.0.0.0/8 for endpoints
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