Specifications

Watson-TDM-Manual-W.doc
Version 2.0-01
Watson TDM
Operating Manual
Revision: 2008-02-07 3-9
LTUMODE 15
E1 Port #1
E1 Port #2
E1 Port #3
E1 Port #4
DSL Port D
2 Mbps
Note: DSL Port C is unused
DSL Ports A, B
3 Mbps per pair
Figure 3-7: LTUMODE 15
LTUMODE 16
E1 Port #1
E1 Port #2
E1 Port #3
E1 Port #4
Note: DSL Port D is unused
DSL Ports A, B, C
2.76 Mbps per pair
Figure 3-8: LTUMODE 16
The following restrictions apply in all High Capacity E1 configurations:
• Only unframed G.703 operation is supported in High Capacity E1 configura-
tion
• The E1 signals must be synchronized one to another. If they are not synchro-
nous then slips will occur which result in bit errors. The errors are visible in
the G.826 statistics for the E1 interfaces (Monitor command G826 E1). The
G826 values are based on slip events rather than on CRC4 errors or FAS er-
rors.
• The following Monitor commands are only available on sub-systems having
active DSL port(s), i.e. 1
st
sub-system in each case, and 3
rd
sub-system in
case of LTUMODE 14:
BACKOFF LOOP2 LOOPREG
MASTER POWER RESET
RESETG826 ALL RESTART STARTAL
STOPAL
• For the following Monitor commands the subsystems without active DSL ports
will report the values from the associated subsystems with active DSL ports:
ALARM CONFIG
DIAGNOSTIC G826
STATUS
• PRA and APS are not available in High Capacity E1 configuration