Dti-U( ) Etu; Description; Figure 5-25 Dti-U( ) Etu - NEC ElectraElite 48 System Hardware Manual

Electra Elite
System Hardware Manual
4.8

DTI-U( ) ETU

4.8.1

Description

The DTI-U( ) ETU is a Digital Trunk Interface that
provides termination of FT1 trunks (up to 16 DS-0
channels) that support K-CCIS and Automatic Number
Indication (ANI) on T1.
A combination of Loop Start and Ground Start signaling
can be used on the DTI-U( ) ETU. DTMF, Dial Pulse
dialing, Tie line (E&M), and DID are supported. The DTI-
U( ) ETU has 24 built-in DTMF detectors. Tip and Ring
electrical fuses are provided to comply with UL 1459
requirements.

Figure 5-25 DTI-U( ) ETU

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