Nortel Networks NN43001-301 manual Shelf slot assignments for NTRB21, NTAK09 and NTAK20

2021.5 Mb PRI implementation

Shelf slot assignments for NTRB21, NTAK09 and NTAK20

Table 74 "Shelf slot assignments for NTRB21, NTAK09, and NTAK20" (page 202) provides the shelf slot assignments for the NTRB21 TMDI card, NTAK09 DTI/PRI card, and NTAK20 Clock Controller daughterboard in Small Systems. The NTAK 93 DCH and NTBK51BA DDCH daughterboards are not included in this table since they are mounted on the NTAK09 DTI/PRI circuit card and not on a shelf.

Table 74

Shelf slot assignments for NTRB21, NTAK09, and NTAK20

				NTAK20
				Clock controller
				daughterboard
			NTAK09		Non-
		NTRB21	DTI/PRI	CISPR B	CISPR B
		TMDI card	circuit card	cabinets	cabinets
	Main	1 – 9	1 – 9	1 – 3	1 – 9
					(see Note 2)
Small	Expansion 1	11 – 19	11 – 19	11 – 13	11 – 19
		21 – 29	21 – 29	21 – 23	21 – 29
System	Expansion 2
	Expansion 3	31 – 39	31 – 39	31 – 33	31 – 39
	Expansion 4	41 – 49	41 – 49	41 – 43	41 – 49

Note: On cabinets NTAK11Dx and NTAK11Fx, the active card must be placed in slots 1 – 3 (slots 4 to 10 cannot be used).

NTAK93 D-channel Handler Interface (DCHI) daughterboard

The NTAK93 DCHI daughterboard interfaces with the system Central Processing Unit (CPU) and mounts on the NTAK09 DTI/PRI circuit card for PRI or ISL shared mode applications. The DCHI is responsible for performing the Q.921 layer 2 protocol information. It transfers layer 3 signaling information between two adjacent network switches.

The NTAK93 DCH daughterboard, when installed on the NTAK09 circuit card, is addressed in the same slot as the NTAK09. The NTAK93 can use SDI I/O addresses 0 to 79 and port 1.

Note: I/O addresses 0, 1, 2, 8 and 9 are preconfigured on the Small System and must not conflict with the I/O addresses on the NTAK93 card.

A minimum of one NTAK93 is required for each PRI link. If more than one PRI link connects to the same end location, a single DCHI circuit card can support up to a maximum of sixteen PRI connections for the Small System.

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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