Nortel Networks NN43001-301 manual NT5D12 Dual-port DTI/PRI

Models: NN43001-301

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NT5D12 Dual-port DTI/PRI 57

Figure 22

Clock Controller - Option 4

NT5D12 Dual-port DTI/PRI

The NT5D12 is a dual-port 1.5 DTI/PRI card (the DDP firmware functions in DTI or PRI mode) integrating the functionality of two QPC472 DTI/DDP2 PRI cards and one QPC414 ENET into one card. The NT5D12 occupies a single Network shelf slot and provides two DTI/PRI network connections, an optional connection to an external D-Channel Handler, the QPC757 D-Channel Handler Interface (DCHI) or NT6D80 Multipurpose Serial Data Link (MSDL), and an optional plug-on NTBK51AA Downloadable D-Channel daughterboard (DDCH.)

The NT5D12 DDP card supports all features (except the echo canceller and protocol conversion) of the QPC720. In addition, it maintains the backward compatibility of QPC720.

The NT5D12 DDP card hardware design uses a B57 ASIC E1/T1 framer. The carrier specifications comply with the ANSI TI.403 specification. The NT5D12 provides an interface to the 1.5 Mb external digital line either directly or through an office repeater, Line Terminating Unit (LTU), or Channel Service Unit (CSU).

Nortel Communication Server 1000

ISDN Primary Rate Interface Installation and Commissioning

NN43001-301 02.03 Standard

Release 5.5 7 December 2007

Copyright © 2003-2007, Nortel Networks

Page 57
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Nortel Networks NN43001-301 manual NT5D12 Dual-port DTI/PRI