Beltpack
Connectivity
Mechanical
The HelixNet System
Effortless Management
The HelixNet HXII-BP beltpack is a two-channel intercom user station 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. Multiple Channels can be assigned or stacked to either beltpack keyset. System Program Audio can be associated with any channel with independent endpoint level control.
XLR Powerline: 3-pin XLR-F
LAN/PoE: RJ45 etherCON
Headset: 4-pin XLR or 5-pin XLR-F
USB: Micro AB
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: -12dB (selectable)
Route from a 4-wire input at 0dBu in:
Max Gain: 0dB
Frequency Response: 40Hz – 10kHz ±3dB
Distortion: <0.2% THD @ 1kHz
Noise: -65dBu
Headphone Limiter: 0dB (selectable)
Voltage: 48V DC
Current (Max): 0.09A
Power (Max): 4W
BTU (Max): 13BTU/hr
This unit can be powered via:
Powerline:
Input Voltage: ±29.5V DC
Input Current (Max): 0.13A
Powerline Utilization:
HXII-BP = 1 beltpack
Note the maximum Powerline capacity of the HMS-4X
Use HelixNet Cable Calculator to validate load and cable distance.
PoE – Power over Ethernet:
IEEE 802.3af-2003 – Class 1
PSE: 4.0W DC max @ Power Source Req.
PD: 3.84W DC max @ Powered Device Draw
32°F to +104°F (0°C to +40°C)
0 – 90% relative humidity
IP53 rated
5.3 x 3.9 x 1.7in (HxWxD)
(135 x 99 x 43mm)
12.2oz (0.35kg)
Ethernet IPv4 – Unicast Audio and Control
mDNS – Multicast Device Discovery
Layer 3 routable with mDNS function limitations
WavPack – Audio Codec
Port 80 TCP – System Management
Port 6001 TCP – System Management
Port 6001 UDP – Audio Streams
Port 5353 UDP – mDNS, Names, Discovery, Linking
Optional for device names and linking
Endpoint Resource Use: 1 (-X4 variant)
Endpoint Resource Use: 2 (-X5 for binaural)
Bandwidth:
300 (max) kbps from each HXII-BP to HMS
1200 (max) kbps from HMS to each endpoint
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