NEC

EXPANSION CABINET INTERFACE Expansion Card Interface Unit(Elite 192) The Expansion ETU is installed in the B64-U20 KSU for expansion. One EXP-U10 is required per expansion KSU.

The Central Office Caller ID ETU detects Caller ID signals from the central office and sends them to the Main Processor. This card supports 4 outside (CO/PBX)  Loop start trunks.

Product Description NEC DS2000 8 Slot Phone System# The DS2000 8 Slot phone system can be expanded to a total capacity of 112 Ports# Expands using any of the DS2000 Expansion Boards# Compatible with...

CENTRAL OFFICE INTERFACE UNIT with CALLER ID The Central Office Caller ID ETU detects Caller ID signals from the central office and sends them to the Main Processor. This card supports 8 outside...

Provides 4 Loop Start Telephone Lines with Caller ID Circuitry

Product Description Provides 8 Loop Start Telephone Lines 

DTI-U40 ETU DIGITAL TRUNK INTERFACE UNIT (required for T1 K-CCIS) The Digital Trunk Interface Unit provides for the termination of T1/Fractional T1 (24 DS-0 channels) lines with ANI. Tie line...

Product Description Provides 24 conventional, DID or E&M trunks Maximum is 2 per system Does not include PRI capabilities Requires NEC DS2000 CPU Card Requires system software 03. or...

This is the "B" version that is required to pass Caller ID to a Single Line Telephone.Use the 4ASTU to connect four analog devices such as fax machines, modems, or single line telephones to...

Product Description NEC DS2000 16 Port Digital Station CardNEC DS2000 16 Port Digital Station Card P/N NEC-80021A. Adds 16 Digital Telephone Stations to the DS2000. 2 Digital station cards can be...

Product Description NEC 8-Port Analog Station Card.Compatible with the DS2000 and NEC DSX Phone Systems.NEC 8-Port Analog Station Card Adds the 8 analog telephone ports for either fax, modem or 2500...

The Electronic Station Interface ETU contains 8 circuits. Each circuit can support one digital multi-line terminal.