Clear-Com HKB-2X HelixNet Speaker Station

The HKB-2X is a 4-channel, two display with shift page, flush mount digital partyline headset and Speaker Station that connects to Helixnet Main or Remote Stations over a single shielded twisted-pair cable. The HKB-2X can be locally powered via an external power supply or third party Power-over-Ethernet (PoE) power source.

Product Features:

• For use with HelixNet Main and Remote Stations
• 4-channel, two display, digital networked partyline station
• Fits 4-gang standard electrical wall box (US ANSI/NEMA OS-1) or optional S-Mount enclosure
• Displays swivel up and down for best viewing
• Individual Partyline and Program Audio speaker levels with speaker mute
• Powered by Powerline, Power-over-Ethernet (PoE) or AC/DC universal power adapter

Technical Specifications:

Channels
Four local from any networked Main Station
Any networked program audio feeds (Assignable to intercom channels)

Connectors
Headset: 4-pin XLR–M
Gooseneck Mic: 3-pin Tuchel

As Surface Mount Station:
Intercom line: Screw terminal block (3-way)
DC Power: Screw terminal (2)
Ethernet/PoE: RJ-45

In S-Mount Desktop:
Intercom line: (1) 3-pin XLR-M, (1) 3-pin XLR-F
DC Power: 3-pin to AC adapter (provided)
Ethernet/PoE: RJ-45

Microphone Pre-amplifier
Headset Mic Impedance: 200Ω (Dynamic)
Headset Mic Voltage: 1.7V (Electret selectable)
Limiter: +23dB

The following specified for a route to four-wire output at 0dBu out:
Mic Gain: 60dB (Dynamic), 45dB (Electret)
Frequency Response: 300Hz – 10 kHz ±3dBContoured for Intelligibility
Distortion: <0.2% THD @ 1kHz
Noise: <-55dBu (Dynamic), <-65dBu (Electret)

Headphone Amplifier
Load Impedance: >32Ω
Output Level: +12dBu before clipping
Sidetone: -12dBu (selectable)
Max Power: 5W

The following specified for a route from a four-wire input at 0dBu in:
Max Gain: 0dB
LS Frequency Response: 180Hz – 11kHz +3dB
Distortion: <0.1% THD @ 1kHz
Noise: <-65dBu

Main Power
Via AC Adapter:
Input Voltage Range: 100 - 240VAC
Input Frequency Range: 50 - 60Hz
Input Power: <= 250VAC
AC Adapter Power
Connector: IEC60320-1-C14

Via Power over third party supplied Ethernet power source (PoE):
Connector: RJ-45
Conforms to PoE standard: IEEE 802.3af-2003
Power Required: 13W

Environmental 
Max temperature is 104°F
0 - 90% relative humidity

Dimensions:
As Wall Speaker: Fits standard ANSI/NEMA OS 1 4-gang wall box
With S-Mount: 10.4"W x 6.9"H x 6.7"D

Weight: 1.5 lbs