TELCOLINK DT - AccessDSL NTU
User Manual
Version: 2.5
Page 17 of 66
3.3.6 Automatic V.54 loops
System supports V.54 loops, managed by 140-142 lines. Supporting of V.54 loops is SW
programmable.
Tx
Tx
Rx
Rx
Loop 1
Loop 1
Loop 2
xDSL
Slave
Master
Master
Slave
State Name
RL
LL
TI
RL
LL
TI
DSR State Description
Normal
1
1
1
1
1
1
0
Data Transmission
Loop1 at Master Side
(Setting by terminal
command)
1
1
0
1
1
1
0
TX Data is looped back to RX
at Nx64 Master Network
Interface. LOOP1 alarm is
active on Master side.
Loop2
(Setting
by
terminal command)
1
1
0
1
1
0
1
Data from DSL is looped
back towards Master side in
Slave DSP (Core loopback).
LOOP2 alarm is active on
Master and Slave sides.
Loop1 at Slave Side
(Setting by terminal
command)
1
1
1
1
1
0
0
TX Data is looped back to RX
at
Nx64
Slave
Network
Interface. LOOP1 alarm is
active on Slave side.
Automatic
Loop1
setting at Master side
(activated by LL line
on Master interface)
1
0
0
1
1
1
0
TX Data is looped back to RX
at Nx64 Master Network
Interface. LOOP1 alarm is
active on Master side
Automatic
Loop2
(activated by RL line
on Master interface)
0
1
0
1
1
0
1
Data from DSL is looped
back towards Master side in
Slave DSP (Core loopback).
LOOP2 alarm is active on
Master and Slave sides.
Automatic
Loop1
setting at Slave side
(activated by LL line
on Slave interface)
1
1
1
1
0
0
0
TX Data is looped back to RX
at
Nx64
Slave
Network
Interface. LOOP1 alarm is
active on Slave side.