The Clear-Com HKB-2X is a 4-channel, two display with shift page, flush mount digital Partyline headset and Speaker Station that connects with the HMS-4X Main Station and other user stations using various cable types, including a single shielded twisted-p
Speaker Station
Easy to use front panel with OLED displays
Headset or hands free support with speaker and mic
2 Keysets freely assignable to system channels
Shift page for 4-channel operation
Program Audio level control
Display swivels allowing optimal viewing angles
Connectivity
Powerline terminal plug connection
Ethernet Network port with PoE
Mechanical
4-gang for flush mounting
Optional S-MOUNT for desktop use
The HelixNet System
Networked Intercom System
Flexible cabling
12 Partyline channels; expandable to 24 channels via optional license
Program Audio distribution with independent level controls
Effortless Management
Easy to use CCM browser configuration
Fast front panel control and configuration
Plug-and-go with auto discovery
Central upgrades from main station
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.
SPECIFICATIONS:
Channels
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.
Connectors
Powerline: Powerline, Terminal Block 5 pole, 5 mm pitch
Ethernet/PoE: RJ45
Headset: 4-pin XLR–M
Gooseneck Mic: 3-pin Tuchel
Power Connector: Terminal Block 2 Pole, 5 mm
Microphone Preamplifier
Headset Mic Impedance: 200O (Dynamic)
Headset Mic Voltage: 1.7V (Electret selectable)
Limiter: +23 dB
Route to four-wire output at 0 dBu out:
Mic Gain: 60 dB (Dynamic), 45 dB (Electret)
Frequency Response: 300 Hz – 10 kHz ± 3 dB, contoured for intelligibility
Distortion: <0.1% THD @ 1 KHz
Noise: <-65 dBu
Headphone Limiter: 0 dB (selectable)
Headphone Amplifier
Load Impedance: >32O
Output Level: +12 dBu before clipping
Sidetone: -12 dB (selectable)
Route from a four-wire input at 0 dBu in:
Max Gain: 0 dB
Frequency Response: 40 Hz – 10 KHz ±3 dB
Distortion: <0.1% THD @ 1 KHz
Noise: -65 dBu
Headphone Limiter: 0 dB (selectable)
Loudspeaker Amplifier
Load Impedance: 8O
Output Level: +18 dBu before clipping
Route from a 4-wire input at 0 dBu in:
Max Gain: 18 dB
Frequency Response: 200 Hz – 10 KHz ±3 dB
Distortion: <0.1% THD @ 1 KHz
Noise:<-50 dBu
Device Power
Voltage: 48V DC
Current (Max): 0.3A
Power (Max): 14.4W
BTU (Max): 49 BTU/hr
Input Power Connector: Terminal Block 2 Pole, 5 mm
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 – 60 Hz
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
Environmental
32º – +113ºF (0 – +45ºC)
90% relative humidity
Dimensions
4.5 x 8.2 x 2.4 in (HxWxD)
(114 x 209 x 61 mm)
Weight
18.8 oz (0.53 kg)
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 – 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
Network Parameters
Endpoint Resource Use: 1
Bandwidth:
300 (max) kbps from each HKB to HMS
1200 (max) kbps from HMS to HKB
Network Jitter Tolerance:
<= 128 ms 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
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
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