Electra Elite
Issue 6
System Hardware Manual
5 - 43
4.8
PRT(1)-U10/20 ETU
4.8.1
Description
The PRT(1)-U10/20 ETU is a Digital Trunk Interface that
provides for the termination of an ISDN-PRI line for voice
service only.
The PRT(1)-U10/20 ETU supports AT&T 4ESS (Custom),
AT&T 5ESS (Lucent), DMS-100 (Custom or National
ISDN) and NI-2 protocols. Call-by-Call and Universal call
handling are also supported. Tip and Ring electrical fuses
are provided to comply with UL 1459 requirements.
Figure 5-26 PRT(1)-U10/20 ETU
Summary of Contents for Electra Elite 192
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Page 74: ...Issue 6 Electra Elite 1 22 Introduction ...
Page 96: ...Issue 6 Electra Elite 2 22 System Specifications ...
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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 368: ...Issue 6 Electra Elite A 4 Glossary of Abbreviations THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 369: ...SYSTEM HARDWARE MANUAL NEC America Inc Issue 6 Series 6000 192 ...