ADHB-4 Gen 2

Advanced digital headset box

Ethernet Communication
Six audio output channels
Supports up to three pairs of amplified computer speakers
Dual-channel 1/4" headset jack
XLR connector to low-impedance microphone
Desk mic jack
Telephone handset jack
Individual headset volume controls (via RHB-1)
LED power and PTT indicator
12 VDC operation
Two remote headset box (RHB-1) connections
LED power and PTT indicator
Programmable gain control
Foot-switch inputs for PTT and monitor
Two form-C relay outputs
AUX inputs are Dc isolated
Monochrome LCD display
Telex System Manager supported for firmware and configuration

The ADHB-4 Gen 2 is the perfect companion to C-Soft. The ADHB-4 Gen 2 works with C-Soft and eliminates the variability of computer sound cards for both input and output. The ADHB-4 Gen 2 represents the second generation of this proven audio interface platform. All of things users have come to know and love about the ADHB-4, such as a variety of microphone, headset, and handset options, along with up to six audio outputs, NENA port, mounting options, etc. are there. The unit sports a new display and front panel along with a back panel that has added a two channel auxiliary audio input via a 3.5mm stereo jack, which allows users to bring in other audio feeds, such as audio from a broadcast news channel.

Specifications

Power Requirements	+12Vdc to +16Vdc, semi-regulated, 1.25mA nominal at 12Vdc
NENA Input/Output Impedance	600 Ohms nominal
Relay Contact Ratings	1A 125VAC—Form C Contacts
Specifications

Ethernet Speed	10/100BaseT
USB	Version 2.0
Storage Temperature	28.8°C to 48.8°C (-20°F to 120°F), 100% Non-Condensing
Operating Temperature	0°C to 55°C (32°F to 131°F), 100% Non-Condensing
Frequency Response	±1.5dB, 300 to 3000Hz
Height	2" (50.8 mm)
Width	11.36" (288.54 mm)
Depth	7.71" (195.83 mm)
Weight	5.20lbs/2.36kg (unit); 7.19lbs/3.26kg (shipping weight)
Audio Distortion	2% THD maximum