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16-2 Preliminary May 9, 2000 APX 8000/MAX TNT/DSLTNT Physical Interface Configuration Guide
Configuring STM-0 Cards
Using STM and T1 profiles
Using STM and T1 profiles
When the TAOS unit first detects the presence of an STM-0 card, it creates a default STM
profile for the card as well as 28 T1 profiles for each component T1 line.
The following example shows the parameters in a STM profile, with the example settings:
admin> read stm { 1 7 1}
STM/{ shelf-1 slot-7 1 } read
name = ""
physical-address* = { shelf-1 slot-7 0 }
loop-timing = yes
For information about T1 line profiles, see Chapter 7, “Configuring T1 Cards.”
Sample STM-0 configurations
To configure the STM-0 card, you must configure each component T1 profile. In most cases,
you do not need to modify the default configuration of the STM-0 card.
Example of configuring an STM profile
Note: Use of the internal clock is generally not recommended.
To configure the lines of a STM-0 card to use its own internal clock for the timing of the line:
admin> read stm {1 1 1}
STM/{ shelf-1 slot-1 1 } read
admin>
set loop-timing = no
admin> write
STM/{ shelf-1 slot-1 1 } written
After configuring the STM-0 line, configure the individual T1 lines that constitute the STM-0
line as explained in the next section.
Parameter Specifies
Name A profile name of up to 16 characters. The name is displayed after
the line’s physical address in the Dir command output.
Physical-Address Location of the card in the system.
Loop-Timing
Clock source for the line. By default, an STM-0 line uses
loop-timing, which means the line derives its timing from the input
clock. When loop-timing is set to No, the line derives its timing
from the TAOS unit’s internal clock. Lucent recommends that you
use the default Loop-Timing setting.