Nortel Networks NN43001-301 manual Hardware description, Cables, Channel Service Units CSU

1961.5 Mb PRI implementation

Circuit card Description

NTAK20

Clock-controller daughterboard. Small Systems supports only one active clock controller per system or IP expansion cabinet.

	Note: Every cabinet/Media Gateway that contains a
	digital trunk must contain a clock controller.
NTAK93	D-channel-handler (DCH) interface daughterboard.
NTBK51BA	Downloadable D-channel daughterboard (DDCH).
	Connects to the NTAK09 DTI/PRI card.

Cables

The following cables are required for PRI connections:

•PRI to external T1 cable

•NTBK04 carrier cable

•NT8D97 50-foot extension (if needed)

Channel Service Units (CSU)

When connecting the DTI/PRI to the public network, CSUs are required by most operating companies. One CSU is required per PRI. Suitable CSUs which support 64 Kbps clear and Bipolar 8 Zero Substitution (B8ZS) are available from vendors such as Verilink, Digitalink, Kentrox, and Tellabs.

Note: Contact your Nortel Sales representative for specific local CSU requirements.

Hardware description

Media Gateway/Media Gateway Expansion

The Media Gateway and Media Gateway Expansion contain physical card slots, numbered 1 to 10. When configuring the system, the physical card slot numbers must be transposed to logical card slot numbers. For example, to configure a card physically located in slot two of the Media Gateway one, use logical slot 12. To configure a card physically located in slot two of the Media Gateway two, use logical Slot 22.

Table 72 "Media Gateway and Media Gateway Expansion slot assignments" (page 197) maps physical card slot numbers to logical card numbers for the Media Gateway and Media Gateway Expansion and reflects added support for the Media Gateway and Media Gateway Expansion physical card slot 4.

Nortel Communication Server 1000

ISDN Primary Rate Interface Installation and Commissioning

NN43001-301 02.03 Standard

Release 5.5 7 December 2007

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