Specifications

Watson TDM
Operating Manual
Watson-TDM-Manual-W.doc
Version 2.0-01
8-6
Revision: 2008-02-07
8.2.2 Plug-in Configuration
LTUMODE [ Mode ]
The Watson TDM plug-ins can be configured flexibly to support 1/2/4 pair opera-
tion and different DSL clocking modes.
This is done with the LTUMODE command. Entering LTUMODE without any pa-
rameter will display the current LTU basic mode and mapping of user interfaces
to xDSL interfaces:
LTU_01_CM> LTUMODE
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
LTUMODE 2: 2x2p, UIF 1 + 2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
System Clk E1 Port SHDSL Port Line Rate Power
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
LTU_01: E1 Rx 1 <------+------> 1 1032 On
|
+------> 2 1032 On
LTU_13: E1 Rx 2 <------+------> 3 1032 On
|
+------> 4 1032 On
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
LTU_01_CM>
In the example above the plug-in is configured as two 2-pair systems.
The first system uses DSL ports 1/2 and E1 port 1. If the plug-in is inserted in slot
1 of the subrack then the address of this system is %01.
The second system uses DSL ports 3/4 and E1 port 2. It operates in two-pair
mode (MODE 2). Its address is %13 assuming the plug-in is inserted in slot 1 of d
subrack.
Available LTU modes:
LTUMODE
Configuration
1
4x1p, four independent 1-pair systems
2
2x2p, two independent 2-pair systems connected to E1 user interfaces 1 + 2
3
1x2p + 2x1p, one 2-pair and two 1-pair systems (E1 user interfaces 1, 2 and
4)
4
1x4p, one 4-pair system connected to E1 user interface 1
5
Multipoint
6
2x2p, two independent 2-pair systems connected to E1 user interfaces 1 + 3
8
2x2p, two independent 2-pair systems connected to E1 user interfaces 3 + 4
12
1x3p + 1x1p
14
2xE1 on 1 pair
15
3xE1 on 2 pairs
16
4xE1 on 3 pairs
L
Selects DSL Clock Mode 1 (Local Clock). See 3.1.4
N
Selects DSL Clock Mode 2 (Network Reference). See 3.1.4
Table 8-4 : LTU modes
When changing the LTU operating mode, all DSL links will be reset and the cur-
rent configuration will be overwritten with the default configuration of the new