Nortel Networks Circuit Card User Manual
Page 780 of 906
NTBK50 2.0 Mb PRI card
Signaling interface
The signaling interface consists of the A07 DS-30X signaling controller. This
interface provides an 8 Kbps signaling link via the DS-30X timeslot zero data
bit zero. Messages are 3 bytes in length.
interface provides an 8 Kbps signaling link via the DS-30X timeslot zero data
bit zero. Messages are 3 bytes in length.
Carrier interface
For the E1 interface, the connection to the external digital carrier is provided
by the line interface chip. This device 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.
by the line interface chip. This device 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.
9
9.0 dB
9
-9.0 dB
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
Table 250
Digital Pad - values and offset allocations (Part 2 of 2)
Digital Pad - values and offset allocations (Part 2 of 2)
PAD SET 0
PAD SET 1
Offset
PAD
Offset
PAD