4-wire Beltpack OB-301
A cost-effective solution to connect an operator’s headset to a standard 4-wire +4 dBu audio line. Simple and reliable device with optional battery power.
4-wire Intercom Unit CU-203
A complete solution to connect 3 operator’s headsets to talk between each other and to a standard 4-wire +4 dBu audio line. The unit is essential when several people are required to control a single unit, and only some of them need to talk to the director.
The unit allows to configure who may talk to the line and to the others and supports both dynamic and electret microphones.
SYSTEM FEATURES
Simple and reliable
Operates from batteries or 12 VDC power supply
Dynamic and electret microphones
Connects up to three users
Options to disconnect users from the line
Dynamic and electret microphones
Specification 
