Electra Elite
Issue 6
System Hardware Manual
5 - 35
4.6
DTI-U10/20 ETU
4.6.1
Description
The DTI-U10/20 ETU is a Digital Trunk Interface that
provides for the termination of FT1 (24 DS-0 channels)
trunks and supports Automatic Number indication (ANI)
on T1.
A combination of Loop Start and Ground Start signaling
can be used on the DTI-U10/20 ETU. DTMF, Dial Pulse
dialing, Tie line (E&M), and DID are supported. The
DTI-U10/20 ETU has 24 built-in DTMF detectors. Tip and
Ring electrical fuses are provided to comply with UL 1459
requirements.
Figure 5-22 DTI-U10/20 ETU
Summary of Contents for Electra Elite 192
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Page 74: ...Issue 6 Electra Elite 1 22 Introduction ...
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Page 213: ...Electra Elite Issue 6 System Hardware Manual 5 67 Figure 5 39 FMS 8 U10 ETU ...
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Page 369: ...SYSTEM HARDWARE MANUAL NEC America Inc Issue 6 Series 6000 192 ...