12713020-003-2 Revision F.01 – January 2007 SSU-2000 Technical Reference 349
Chapter 8 Default Settings
DS1 and E1 Input Module Default Settings
DS1 and E1 Input Module Default Settings
The DS1 Input Module and E1 Input modules maintain factory default and current
user configuration information in nonvolatile memory. This information is retrieved at
power up and is modified by commands from the Communications module.
When the current user configuration cannot be used, the Input module settings
automatically revert to factory defaults. Table 8-3 lists factory default settings and
ranges for all DS1 Input module or E1 Input module software parameters.
Input Selection Mode Priority Priority (0) | PQL (1)
Local Oscillator (LO) Off On (1) |Off (0)
Frequency Offset Set:
4.0 E–8
Clear:
3.5 E–8
Set:
2.5 E–7
Clear:
2.0 E–7
Set:
9.8 E–6
Clear:
9.3 E–6
Constant
Elevation Time (s) 86 400
60 to 500 000 s, 0 = disable
PQL Setting 5 6 8 Constant
Table 8-3. DS1 and E1 Input Module Default Configuration
Configuration Setting Factory Default Range
Input Frequency (for
unframed signals)
1.544 for DS1 Input module
2.048 MHz for E1 Input
module
1 MHz | 1.544 MHz | 2.048 MHz |
5MHz | 10 MHz
Framing Type ESF for DS1 Input module
CCS for E1 Input module
D4 or ESF for DS1 Input Module
CAS or CCS for E1 Input Module
Zero Suppression On On | Off
CRC Off On | Off
SSM Off On | Off
Provisioned PQL 4 for DS1 Input module
Note: PQL 4=STU
4 for E1 Input Module
2 | 3 | 4 | 5 | 6 | 8
Priority 0 0 to 10 (0 = Monitor)
E1 SSM Bit Position 8 (Not applicable for DS1
Input Module)
4 to 8
Table 8-2. Stratum 2E and 3E Clock Module Default Settings (Continued)
Setting
Factory Default
ST2E TYPE I ST3E
Range
ST2E TYPE I ST3E
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