Signaling Interface; Carrier Interface - Nortel Enterprise 1000 Reference Manual

Table 46
Digital Pad – values and offset allocations (Part 2 of 2)
4
5
6
7
8
9
10
11
12
13
14
15

Signaling interface

Carrier interface

Succession Communication Server for Enterprise 1000 Circuit Card Reference Guide
4.0 dB
5.0 dB
6.1 dB
7.0 dB
8.0 dB
9.0 dB
10.0 dB
11.0 dB
12.0 dB
13.0 dB
14.0 dB
spare
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.
The E-1 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.
NTAK79 2.0 Mb PRI card
4
5
6
7
8
9
10
11
12
13
14
15
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–4.0 dB
–5.0 dB
–6.0 dB
–7.0 dB
–8.0 dB
–9.0 dB
–10.0 dB
spare
spare
spare
Idle Code
Unassigned Code