Nortel Networks 553-3001-211 manual Signaling interface

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Table 239

Digital pad values and offset allocations (Part 2 of 2)

PAD SET 0			PAD SET 1
Offset	PAD	Offset		PAD
10	10.0 dB	10		–10.0 dB
11	11.0 dB	11		spare
12	12.0 dB	12		spare
13	13.0 dB	13		spare
14	14.0 dB	14		Idle Code
15	spare	15		Unassigned Code

Signaling interface

The signaling interface consists of the A07 DS-30X signaling controller. This interface provides an 8 Kbps signaling link through the DS-30X timeslot zero data bit zero. Messages are 3 bytes in length.

Carrier interface

The E1 interface connection to the external digital carrier is provided by the line interface chip. This chip provides accurate pulse shaping to meet the CCITT pulse mask requirements. It provides clock recovery functions on the receive side as well as tolerance to jitter and wander in the received bit stream.

553-3001-211 Standard 2.00 September 2004