
TA 850 User Manual © 2001, ADTRAN, Inc.
61200375L1-1
TA 850
TA 850 SDSL RCU UIG/61200377L1-31A
Page 14 of 76
ATM allocates bandwidth on demand, making it suitable for high-speed connection of voice, data, and video services.
Conventional networks carry data in a synchronous manner. Because empty slots are circulating even when the link is
not needed, network capacity is wasted. ATM automatically adjusts the network capacity to meet the system needs.
4. VOICE OVER DSL APPLICATION
The TA 850 connects to a DSLAM via DSL and ATM. The SDSL RCU has a built in Echo Canceller that provides
G.168 echo cancellation. The module can automatically detect ADPCM and enable it as needed.
Figure 1 shows a typical VoDSL application. The TA 850 connects to the ATM network, via a DSLAM, to provide
both voice and high speed data from a single platform.
Figure 1. Voice over DSL
FXS
BUSY
1
1
7
5
4
0
8
L
1
FXS
BUSY
1
1
7
5
4
0
8
L
1
FXS
BUSY
1
1
7
5
4
0
8
L
1
FXS
BUSY
1
1
7
5
4
0
8
L
1
PSU
BANK
20 Hz
-48V
ACO
1175006
L1
RCU
PWR
T1 TEST
V.35 TD
ETH LI
T1 ALARM
T1 ERROR
V.35 RD
ETH TX/RX
120
0376L1
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
BLANK
1
1
7
5
0
9
9
L
1
FXS
BUSY
1
1
7
5
4
0
8
L
1
1
2
3
4
BLANK
1
1
7
5
0
9
9
L
1
BLANK
1
1
7
5
0
9
9
L
1
C
R
A
F
T
TX
N
E
T
RX
TX
M
O
N
RX
3
A
M
P
3
A
M
P
DS3MX
POWER
STATUS
TEST
LOCKOUT
ON LINE
APS
TEST/
ENABLE
1181020
L
1
DS3MX
POWER
STATUS
TEST
LOCKOUT
ON LINE
APS
TEST/
ENABLE
1181 0
20L1
SCU
FSE
MODE
SELECT
ALM
HST
ACO
C
R
A
F
T
ACO
1181015L1
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YE L=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YE L=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=
M
AN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YE L=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YE L=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=
M
AN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL= MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YE
L=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YEL=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
G
RN=NORM
YEL=MAN
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
GRN=NORM
YE
L=MAN
QFC-C
DSX
PWR
DSX
DSX
TST
ALM
ACT
A
P
S
GRN = NO RM
Y
EL = MAN
1
1
8
1
3
0
0
L
1
DSX
#2
#3
#4
#1
QFC-C
DSX
PWR
DSX
DSX
TST
ALM
ACT
A
P
S
GRN =
NORM
YEL = MAN
1
1
8
1
3
0
0
L
1
DSX
#2
#3
#4
#1
QFC-C
DSX
PWR
DSX
DSX
TST
ALM
ACT
A
P
S
GRN = NORM
YEL = MA
N
1
1
8
1
3
0
0
L
1
DSX
#2
#3
#4
#1
QFC-C
DSX
PWR
DSX
DSX
TST
ALM
ACT
A
P
S
GRN = NORM
YEL = MAN
1
1
8
1
3
0
0
L
1
DSX
#2
#3
#4
#1
HD-10 BRI Mux
POWER
DSX
LBK
1
2
3
4
5
6
7
8
9
10
DSL
1
1
8
1
2
0
0
L
1
HD-10 BRI Mux
POWER
DSX
LBK
1
2
3
4
5
6
7
8
9
10
DSL
1
1
8
1
2
0
0
L
1
HD-10 BRI Mux
POWER
DSX
LBK
1
2
3
4
5
6
7
8
9
10
DSL
1
1
8
1
2
0
0
L
1
HD-10 BRI Mux
POWER
DSX
LBK
1
2
3
4
5
6
7
8
9
10
DSL
1
1
8
1
2
0
0
L
1
T1-OR
PWR
DSX
LBK
LP
ALM
T
X
R
X
6V
+
–
A
P
S
TX
M
O
N
ACT
G
R
N
=
N
O
R
M
Y
E
L
=
M
A
N
RX
1
1
8
1
3
1
0
L
1
T1-OR
PWR
DSX
LBK
LP
ALM
T
X
R
X
6V
+
–
A
P
S
TX
M
O
N
ACT
G
R
N
=
N
O
R
M
Y
E
L
=
M
A
N
RX
1
1
8
1
3
1
0
L
1
T1-OR
PWR
DSX
LBK
LP
ALM
T
X
R
X
6V
+
–
A
P
S
TX
M
O
N
ACT
G
R
N
=
N
O
R
M
Y
E
L
=
M
A
N
RX
1
1
8
1
3
1
0
L
1
T1-OR
PWR
DSX
LBK
LP
ALM
T
X
R
X
6V
+
–
A
P
S
TX
M
O
N
ACT
G
R
N
=
N
O
R
M
Y
E
L
=
M
A
N
RX
1
1
8
1
3
1
0
L
1
HTU-C
1181101L1
PWR
DSX
TX
E
Q
RX
TX
M
O
N
RX
TST
LP1
LP2
ALM
ACT
G
RN=NORM
YEL=MAN
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