Remote Station
Connectivity
HelixNet System
Effortless Management
The HelixNet HRM-4X remote station is a 1RU 4-channel intercom user station with utility connections for Program Audio input and Stage Announce output, supported by the HMS-4X main station.
Note: Access the HelixNet Cabling Calculator to calculate estimated maximum cable length for a single Clear-Com HelixNet digital partyline connection.
The HelixNet IP networking guide provides specifications, best practices and guidance for the integration of HelixNet into an existing or new IP network.
System provides 12 or 24 intercom channels. Four Channels can be assigned to station keysets. Program Audio can be associated with any channel with independent endpoint level control.
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
Headset Mic Impedance: 200Ω (Dynamic)
Headset Mic Voltage: 1.7V (Electret selectable)
Limiter: +23dB
Route to 4-wire output at 0dBu out:
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)
Load Impedance: >32Ω
Output Level: +12dBu before clipping
Sidetone: -12dBu (selectable)
Route from a 4-wire input at 0dBu in:
Max Gain: 0dB
Frequency Response: 180Hz – 10kHz +3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-65dBu
Headphone Limiter: 0dB (selectable)
Load Impedance: 8Ω
Output Level: +18dBu before clipping
Route from a 4-wire input at 0dBu in:
Max Gain: 18dB
Frequency Response: 200Hz – 10kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise:<-50dBu
Maximum Level Before Clipping: +18dBu
Nominal Input Level: 0dBu (selectable)
Input Impedance: >= 10KΩ
Route to 4-wire output at 0dBu out:
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 from a dynamic headset:
Frequency Response: 300Hz – 12kHz ±3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-55dBu
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
Voltage: 48V DC
Current (Max): 0.3A
Power (Max): 14.4W
BTU (Max): 49BTU/hr
Input Power Connector: KPJX-PM-3-S
This unit can be powered via:
Powerline:
Input Voltage: ±29.5V DC
Input Current (Speaker Off): 0.3A
Input Current (Max): 0.5A
Powerline Utilization:
HRM (Local Power) = 1 beltpack
HRM (Speaker Off) = 2 beltpacks
HRM (Speaker On) = 3 beltpacks
Note the maximum Powerline capacity of the HMS-4X.
Use HelixNet Cable Calculator to validate load and cable distance.
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
32º – +104ºF (0 – +40ºC)
90% relative humidity
1.75 x 19 x 6.4in (HxWxD)
(44 x 483 x 165mm)
4lbs (1.8kg)
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, 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 HMS/HRM Expansion
Endpoint Resource Use: 1-3
Bandwidth:
300-600 (max) kbps from HRM to HMS
1200-2400 (max) kbps from HMS to HRM
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 Range:
10.0.0.0/8 for endpoints
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