Symmetricom SSU-2000 User Manual page 110

CHpater 3 Provisioning and Operating the SSU-2000
Initial Provisioning
5. Set the framing type for each input port. Provision DS1 signals to either ESF or
D4; provision E1 signals to CAS or CCS.
ICS command:
Type
INPUT 1Ay-z FRAME ESF|D4
where y is the slot number and z is the port number. Select either ESF or D4 as
appropriate. Repeat this command as needed for each slot and port.
TL1 command:
See Step 8, below.
6. Provision the Zero Suppress for each input port to On or Off as appropriate.
ICS command:
Type
INPUT 1Ay-z ZS ON|OFF
where y is the slot number and z is the port number.
TL1 command:
See Step 8, below.
7. Provision the Cyclic Redundancy Check (CRC) for each input port to On or Off.
ICS command:
Type
INPUT 1Ay-z CRC ON|OFF
where y is the slot number and z is the port number.
TL1 command:
See Step 8, below.
8. Provision the Synchronization Status Message (SSM) for each input port to On or
Off. When set to On, the SSU-2000 reads and interprets the SQL on the
reference. If the reference does not include an SSM, the SQL is defined as STU.
ICS command:
Type
INPUT 1Ay-z SSM ON|OFF
and z is the port number.
For E1 signals, you must define the bit position:
Type
INPUT 1Ay-z SSM [4–8]
TL1 commands:
SET-PRMTR-INPUT::S1Ay[-z]:123::,,,ESF|D4|CCS|CAS|1|1.544|2.048|5|
10,ssm,zs,crc,,bit;
where y is the slot number and z is the port number; the numbers indicate the
input frequency in megaHertz; ssm, zs, and crc are ON or OFF, as appropriate.
Bit indicates the position (4–8) of the SSM in E1 signals.
9. Provision the MTIE limits for each input port according to ANSI (PRS or DS1) or
ITU (G.811 or G.823) specifications.
110 SSU-2000 User's Guide
, then press Enter
then press Enter
then press Enter
then press Enter, where y is the slot number
then press Enter.
12713020-002-2 Revision F.01 – January 2007