Nortel Networks NN43001-301 manual Disk drive hardware, NT5D97 Dual-port DTI2/PRI2 card

Models: NN43001-301

1 306
Download 306 pages 36.63 Kb
Page 34
Image 34

34ISDN Primary Rate Interface equipment overview

Disk drive hardware

The following hardware is required for Large System upgrades:

3.5-inch disk drive unit

disk drive controller for above

cable for above

NT5D97 Dual-port DTI2/PRI2 card

The NT5D97 is a dual-port 2.0 Mb DTI2/PRI2 card (the DDP2 firmware functions in DTI2 or PRI2 mode, depending on DIP switch settings) that integrates the functionality of two NT8D72BA PRI2 cards, and one QPC414 ENET card into a single CE card. The NT5D97 occupies a single slot in the Network shelf and provides two DTI2/PRI2 network connections: an interface to an external D-Channel Handler (the NT6D11AF) or the NT6D80 Multipurpose Serial Data Link card, and an optional plug-on NTBK51AA Downloadable D-Channel daughterboard (DDCH) with two DCH interface ports.

The NT5D97 DDP2 card can be mixed in the same machine with PRI2 NT8D72BA cards.

The NT5D97 DDP2 card hardware design uses a B57 ASIC E1/T1 framer. The carrier specifications comply with the ANSI TI.403 specification. The NT5D97 provides an interface to the 2.048 Mbps external digital line either directly or through an office repeater, Network Channel Terminating Equipment (NCTE), or Line Terminating Unit (LTU).

DANGER

DANGER OF ELECTRIC SHOCK

The NT5D97 DDP2 card is not designed to be connected directly to the Public Switched Network, or other exposed plant networks. Such a connection should only be done using an isolating-type networking terminating device that provides voltage surge protection, such as a Line Terminating Unit (LTU), Network Channel Terminating Equipment (NCTE), or Network Termination 1 (NT1), as certified by your local, regional, or national safety agency and telecommunications authority.

External D-Channel Interface DCH or MSDL

The connection between the DDP2 card and the external DCH or MSDL is through a 26 pin female D type connector. The data signals conform to the electrical characteristics of the EIA standard RS-422.

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 34
Image 34
Nortel Networks NN43001-301 Disk drive hardware, NT5D97 Dual-port DTI2/PRI2 card, External D-Channel Interface DCH or Msdl