Speaker Station
Connectivity
Mechanical
The HelixNet System
Effortless Management
The HelixNet HKB-2X speaker station is a 4-gang flush-mountable user station with four channels over two shift pages 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. System Program Audio can be associated with any channel with independent endpoint level control.
Powerline: Powerline, Terminal Block 5 pole, 5mm pitch
Ethernet/PoE: RJ45
Headset: 4-pin XLR–M
Gooseneck Mic: 3-pin Tuchel
Power Connector: Terminal Block 2 Pole, 5mm
Headset Mic Impedance: 200Ω (Dynamic)
Headset Mic Voltage: 1.7V (Electret selectable)
Limiter: +23dB
Route to four-wire output at 0dBu out:
Mic Gain: 60dB (Dynamic), 45dB (Electret)
Frequency Response: 300Hz – 10 kHz ± 3dB, contoured for intelligibility
Distortion: <0.1% THD @ 1kHz
Noise: <-65dBu
Headphone Limiter: 0dB (selectable)
Load Impedance: >32Ω
Output Level: +12dBu before clipping
Sidetone: -12dB (selectable)
Route from a four-wire input at 0dBu in:
Max Gain: 0dB
Frequency Response: 40Hz – 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
Voltage: 48V DC
Current (Max): 0.3A
Power (Max): 14.4W
BTU (Max): 49BTU/hr
Input Power Connector: Terminal Block 2 Pole, 5mm
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:
HKB (Local Power) = 1 beltpack
HKB (Speaker Off) = 2 beltpacks
HKB (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 – Wall (not included)
Input Voltage Range: 100 – 240V AC
Input Frequency Range: 50 – 60Hz
Input Power Connector: Universal
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: 15.4 W DC max @ Power Source Req.
PD: 12.95 W DC max @ Powered Device Draw
32º – +113ºF (0 – +45ºC)
90% relative humidity
4.5 x 8.2 x 2.4in (HxWxD)
(114 x 209 x 61mm)
18.8oz (0.53kg)
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
Port 6001 TCP – System Management
Port 6001 UDP – Audio Streams
Multicast:
Port 5353 UDP – mDNS, Names, Discovery, Linking
Optional for device names and linking
Endpoint Resource Use: 1
Bandwidth:
300 (max) kbps from each HKB to HMS
1200 (max) kbps from HMS to HKB
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
