ADTRAN Express 6530, Installation And Maintenance Manual

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Full Nx64K 2 Mbps Service is set up using the quick
key “N,” and then selecting “A” to save the changes.
The screen in
Figure 10
illustrates a cross-connect
map configured for Full Nx64K 2 Mbps Service.
In addition, when setting up Full Nx64K 2 Mbps
Service, the type of line interface must be specified.
V.35, V.36, or X.21 may be selected. To reach this
portion of the menu, select “2,”
Provisioning , from the
main menu, and choose the local or the remote unit
provisioning. Select “4,”
Nx64K Options , and then
select “2,” Interface Type Manual Select . Finally,
enter the desired line interface.
Back-to-Back NTU Operation
The NTU supports back-to-back operation
(Figure 11)
1. One NTU must be configured as the NT (STU-R)
2. The other NTU must be configured as the LT
(STU-C)
The STU-C and STU-R modes are selected via the
local management port only. The default mode for the
NxNTU is STU-R.
NOTE
For the LT (STU-C), Network and Customer
direction are opposite of ITU G.991.2
specification definitions. In a back-to-back
configuration, the “Network” direction is always
toward the SHDSL port and the “Customer”
direction is always away from the SHDSL port
Figure 10. Full Nx64K 2 Mbps Service
Circuit ID: 01-Jan-00 23:41:06
Unit Mode: NT Provisioning Type: Local
Cross-Connect Map
SHDSL Timeslots G.703 Timeslots
TS0 = 33 TS12 = 33 TS24 = 33 TS0 = 0 TS12 = 0 TS24 = 0
TS1 = 33 TS13 = 33 TS25 = 33 TS1 = 0 TS13 = 0 TS25 = 0
TS2 = 33 TS14 = 33 TS26 = 33 TS2 = 0 TS14 = 0 TS26 = 0
TS3 = 33 TS15 = 33 TS27 = 33 TS3 = 0 TS15 = 0 TS27 = 0
TS4 = 33 TS16 = 33 TS28 = 33 TS4 = 0 TS16 = 0 TS28 = 0
TS5 = 33 TS17 = 33 TS29 = 33 TS5 = 0 TS17 = 0 TS29 = 0
TS6 = 33 TS18 = 33 TS30 = 33 TS6 = 0 TS18 = 0 TS30 = 0
TS7 = 33 TS19 = 33 TS31 = 33 TS7 = 0 TS19 = 0 TS31 = 0
TS8 = 33 TS20 = 33 TS32 = N/A TS8 = 0 TS20 = 0
TS9 = 33 TS21 = 33 TS33 = N/A TS9 = 0 TS21 = 0
TS10 = 33 TS22 = 33 TS34 = N/A TS10 = 0 TS22 = 0
TS11 = 33 TS23 = 33 TS35 = N/A TS11 = 0 TS23 = 0
Timeslot Assignments Commands
0. Idle A. Apply New Map G. Full G.703 Service
1.-31. G.703 Service 1-31 U. Undo New Map N. Full Nx64K Service
32. G.704 Frame Tab. Select SHDSL or G.703 Timeslots
33. Nx64K Service Arrow Keys. Move Cursor
G.704 Framing = Unframed
Figure 11. Back-to-Back NTU Operation
Nx64K
Subscriber
E1
Subscriber
Nx64K
SHDSL
SHDSL NTU SHDSL NTU
NT (STU-R) LT (STU-C)
SHDSL
Line
X.21,
V.35 or
V.36
E1
X.21,
V.35 or
V.36
E1
E1
G.703
G.704
Nx64K
Subscriber
E1
Subscriber
VT100
Terminal
Local
Management
Port
Nx64K
SHDSL
E1
G.703
G.704