Telex

http://www.telex.com

ADHB-4

Advanced Digital Headset Box

Features Specifications

Ethernet Communication
Six (6) Audio Channels
One (1) Dual Channel 1/4” Headset Jack
One (1) XLR Connector to Accept any Low Impedance Microphone
One (1) Desk Mic Jack
One (1) Phone Jack
One (1) NENA I/O Jack with Offhook Detection
Separate Headset Volume Control Knobs for Select
Supports up to Three (3) pairs of speakers
Any standard amplified speaker
LED Power and PTT Indicator
12VDC Operation
Two (2) Headset Jacks to Support Two (2) Remote Headset Boxes
ADHB-4 provides power to an RHB
Dual channel 1/4” headset jack
Volume control knob
Support both Select and Unselect in either ear.
LED for power/PTT indication
Programmable Gain Control
Programmed Softkeys
Footswitch Inputs for PTT and Monitor
Two Relays with Form C contacts
AUX Inputs are DC Isolated
Color LCD Type Display
Network clock
Available speaker indication
PTT indicator
Active inputs indicator
IP Address
PTT Indicator for RHB 1 and RHB 2
Adjustable contrast for the backlight
Connectivity indicator for headset

Audio Distortion	`2% THD Maximum`
Audio Frequency Response	`±1.5dB, 300 to 3000Hz`
Color	`Silver`
Depth	`8.25" (209.5 mm)`
Display Type	`Backlit Color LCD`
Ethernet Speed	`10 BaseT or 100 BaseTX`
Form Factor	`Rackmount`
Height	`2" (50.8 mm)`
Microphone Jack	`XLR connector or RJ-11 jack`
NENA Input/Output Impedance	`600 Ohms nominal`
Operating Altitude	`-500 to 13,000 ft. m`
Operating Humidity	`100 % Non-condensing`
Operating Temperature	`0° to 55°C (32° to 131°F) °C`
Power Requirements	`+12 to +16VDC, semi-regulated, 1.25A`
Relay Contact Ratings	`1A at 125VAC - Form C Contacts`
Speaker	`Stereo jacks connect to amplified PC Speaker pair jacks. Three (3)`
Storage Humidity	`100 % Non-condensing`
Storage Temperature	`28.8° to 48.8°C (-20° to 120°F) °C`
USB	`Version 2.0`
Volume Control	`Knob`
Width	`11" (279.4 mm)`

Downloads

Expand Application guides

FAQ #0003 Telex Radio Dispatch Downloads 83 KB | June 12, 2013

ADHB-4 Back 3.9 MB | November 6, 2014

ADHB-4 Front 4.34 MB | November 6, 2014

ADHB-4 Iso 4.68 MB | November 6, 2014

Expand Service Policies

Allgemeine Lieferbedingungen 184 KB | November 30, 2016

Language

GER

Asia/Pacific Service Policies 2.62 MB | September 4, 2018

General Terms & Conditions of Deliver for Export Business 57 KB | November 26, 2014

Expand Technical data sheets

ADHB-4 Specification Sheet 189 KB | July 17, 2012

Expand Warranties

EMEA BT Service Policies 227 KB | June 11, 2018

Language

ENG ENG

After Sales Service Programs & Policies (NA) 2.61 MB | August 27, 2018

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Telex is part of the Bosch Communications Systems family of brands, offering the world's most complete portfolio of professional audio and communications solutions.

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