Nortel Circuit Card Installation Manual page 834

Page 834 of 906
D-channel interface
553-3001-211 Standard 3.00
NTRB21 DTI/PRI/DCH TMDI card
Table 263
Digital pad values and offset allocations
Offset
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
The D-channel interface is a 64 kbps, full-duplex, serial bit-stream configured
as a Data Circuit-terminating Equipment (DCE) device. The data signals
include:
• receive data output
• transmit data input
August 2005
PAD set 0
0dB
2dB
3dB
4dB
5dB
6.1dB
8dB
–1dB
–3dB
–4dB
idle code, 7F
unassigned code, FF
1dB
–2dB
–5db
–6db
PAD set 1
–7db
–8db
–9db
–10db
0.6db
7db
9db
10db
11db
12db
3db
14db
spare
spare
spare
spare