Nortel Networks 311 사용자 설명서
96
Option settings
NT8D17 Conference/TDS card
Switch and jumper settings are used to select the companding law and to
change the conference attenuation PAD levels. These PAD levels are used
if prompt CPAD = 1 in LD97. The J1 connector on the faceplate is reserved
for future use.
change the conference attenuation PAD levels. These PAD levels are used
if prompt CPAD = 1 in LD97. The J1 connector on the faceplate is reserved
for future use.
You can enable or disable a warning tone for conference calls. When the
option is enabled, the tone lets callers know they are entering a conference
call. The switch for this option is preset to disable the warning tone.
option is enabled, the tone lets callers know they are entering a conference
call. The switch for this option is preset to disable the warning tone.
Companding law
Jumper at J3
µ
-law (North America), A-law
connect pins 2 and 3
Special cases
connect pins 1 and 2
SW2 (see Note)
Attenuation levels
1
2
3
10.2 db
on
on
on
8.5 db
on
off
on
6 db
off
on
on
6 db
off
off
on
4.5 db
on
on
off
3 db
on
off
off
0 db
off
on
off
0 db
off
off
off
Note: Set position 4 to ON to disable the warning tone option. When the warning tone is enabled,
select the warning tone level as shown below.
select the warning tone level as shown below.
Level
Jumper at J2
24 db
connect pins 1 and 2
30 db
connect pins 2 and 3
NT8D21 Ringing Generator AC
Settings
Frequency
Amplitude
P1
P2
P3
20 Hz
86 V ac
open
open
2–5
8–11
25 Hz
70 V ac
open
1–4
7–10
open
25 Hz
80 V ac
open
3–6
9–12
open
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.