Valcom One Zone Door Answering Unit (w/o Lock Relay) ~ Stock# V-2900 ~ NEW Battery charger Jaw Capacity: 1-3/4'' (44

Jaw Capacity: 1-3/4'' (44

The efficient NEC COI(4)-U10 ETU / CENTRAL OFFICE INTERFACE UNIT (Stock # 750150) is a Central Office Interface Unit that supports 4 outside (CO/PBX) lines

one master kit using the LEM-1DLS box set

Dimensions: 2-3/16" W x 1-3/8" H x 7/8" D

Valcom One Zone Door Answering Unit (w/o Lock Relay) ~ Stock# V-2900 ~ NEW Battery charger Jaw Capacity: 1-3/4'' (44The efficient Valcom V 2900 One Zone Door Answering Unit (w o Lock Relay) provides voice contact from a designated telephone station to a door. When used in conjunction with a doorplate speaker, pressing the pushbutton on the doorplate speaker will cause the phone to ring (1 second on, 4 seconds off). Features: Loop start trunk access from a PABX or C. O. Line Position of an E Key system Dedicated single line telephone access Phone to speaker volume