NEC SL2100 Programming Manual page 584

SL2100
Item
No.
06 TDM Echo can-
celler tail length
07 TDM Echo Can-
celler Default
ERL Level
Program
84
08 TDM Echo Can-
celler Echo Type
10 TDM TX Level
Control
11 TDM TX Voice
Level Control
Mode
12 TDM TX Auto-
matic Level Con-
trol Level
13 TDM TX HLC
Threshold
14 TDM TX Gain
Compression
Mode
2-560
Item Input Data
1 = 32 ms
2 = 48 ms
3 = 64 ms
4 = 80 ms
5 = 96 ms
6 = 112 ms
7 = 128 ms
0 ~ 6 (- 9 dB ~ + 9 dB)
0 = - 9 dB
1 = - 6 dB
2 = - 3 dB
:
5 = 6 dB
6 = 9 dB
1 = Line Echo Cancel-
ler
2 = Acoustic Echo Can-
celler
0 = Disable
1 = TX Control Mode
2 = TX Automatic Level
Control Mode
3 = TX HLC (high Lev-
el)
0 ~ 16 (-24 dB ~ +24
dB) (for VoIPDB mode)
2 ~ 14 (-18 dB ~
+18dB) (for Built-In
VoIP mode)
0 = -24 dB (for VoIPDB
mode only)
1 = -21 dB (for VoIPDB
mode only)
2 = -18 dB
:
8 = 0 dB
:
14 = 18 dB
15 = 21 dB (for VoIPDB
mode only)
16 = 24 dB (for VoIPDB
mode only)
0 ~ 12 (-42 dBm ~ -6
dBm)
0 = -42 dBm
1 = -39 dBm
:
7 = -21 dBm
:
11 = -9 dBm
12 = -6 dBm
0 ~ 42 (-42 dBm ~ 0
dBm)
0 = -42 dBm
1 = -41 dBm
:
41 = -1 dBm
42 = 0 dBm
0 = Disable
1 = Enable
Description
Normally not used.
Do not change the setting unless
asked to change by engineer.
Select length of echo. Effective
when PRG 84-31-01 = 1
Normally not used.
Do not change the setting unless
asked to change by engineer.
Select length of echo. Effective
when PRG 84-31-01 = 1
This program is invalid when a
Built-In VoIP is used.
Select echo canceller type:
1: Based upon ITU-T G.168
2: Based upon ITU-T G.167
Effective when PRG 84-31-01 = 1
Select transmit level control mode.
Input Data [2] is only available when
you use VoIPDB.
It is unavailable when you use Built-
in VoIP, which is set to [0].
Effective when PRG 84-31-10 = 1
When the system used for Built-
In VoIP (on the CPU) feature,
the Voice Control level range
will be changed to 2-14 (-18dB -
+18dB) instead of 0-16 (-24dB -
+24dB).
Normally not used. Select target
gain. Effective when PRG 84-31-10
= 2
This program is only effective when
a VoIPDB is used.
Select HLC threshold level.
Effective when PRG 84-31-10 = 3
When the system used for Built-
In VoIP (on the CPU) feature,
the HLC Threshold level range
will be change to 22-42 (-20dBm
- 0dBm) instead of 0-42 (-42dBm
- 0dBm).
Transmit Gain Compression on or
off. Effective when PRG 84-31-10 =
3
This program is only effective when
a VoIPDB is used.
Program 84 : Hardware Setup for VoIPDB
ISSUE 2.0
Default Related
Program
7 84-31-01
5 84-31-01
1
3
8
7
41
1