Symmetricom SDU-2000, Руководство пользователя

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Provisioning and Operating the SSU-2000
Initial Provisioning
96 SSU-2000 User’s Guide 12713020-002-2 Revision D – April 2004
6. Provision the Cyclic Redundancy Check (CRC) for each input port to On or Off.
ICS command:
Type
INPUT xAy CRC ON|OFF
then press Enter , where x is the slot number and y
is the port number.
TL1 command:
See Step 7, below.
7. 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 xAy SSM ON|OFF
then press Enter , where x is the slot number and y
is the port number.
For E1 signals, you must define the bit position.
Type
INPUT xAy SSM [4–8]
then press Enter .
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.
SET-PRMTR-CCINP::S1Ax[-y]:123::,,,zs;
for Composite Clock Input modules, ZS is ON or OFF, as appropriate.
8. Provision the MTIE limits for each input port according to ANSI (PRS or DS1) or
ITU (G.811 or G.823) specifications.
ICS command:
Type
INPUT xAy MTIE PRS|DS1|G.811|G.823
then press Enter
where x is the slot number and y is the port number.
TL1 command:
N/A
9. Assign a name, if desired, to each input port. You can assign a name of up to 20
characters.
ICS command:
Type
IONAME xAy [name]
then press Enter
where x is the slot number and y is the port number.
TL1 command:
N/A