We offer Telephone Equipment for the Office and Home
This Basic Rate Interface unit supports one circuit (two voice channels) for ISDN Basic Rate Interface. This ETU is installed in the BRT/COI slot.
The Caller ID Unit detects Caller ID signals from the central office and sends caller identification to the main board. This information is then displayed on the LCD of the telephones. This ETU is installed on the main board and COI(2)-B10 ETU as a piggyback.
Electrical fuses (posistors) are built into this ETU. This unit supports two outside (CO/PBX) lines and provides circuitry for ring detection, holding, and dialing. The outside lines must be Loop Start DTMF trunks. This ETU is installed in the BRT/COI slot.
The Electronic Station Interface ETU contains three circuits. Each circuit can support any type of multiline telephone, or single line telephone adapter. This ETU is installed in slot ESI in the B408-B10 KSU. A five-channel ESI circuit is built in on the B408-B10 KSU.
The Single Line Interface ETU supports a maximum of two single line telephones. This ETU provides Ringing Signal Generator (RSG) to single line telephones. This ETU is installed in the VMS/SLI slot in the B408-B10 KSU.
The AC Adapter unit connects to one of the following: APR-U Unit,or HFU-U Unit.
