Symmetricom EDGE CLOCK 1000 - Manual (Page 115)

097-58001-02 Revision G – April 2008 TimeProvider User’s Guide 115
Chapter 4 Provisioning the TimeProvider
Provisioning the Input Reference
Provisioning the SSM
Before you can read Synchronization Status Messages (SSMs) on certain input
signals, you need to provision the TimeProvider to read the incoming SSM and
identify the bit position of the SSM. SSMs are on the following types of input signals:
E1, CAS4, CCS4
T1, ESF
Reading SSMs
To enable the use of SSMs, you must first provision the TimeProvider to read SSMs
on the input. Use the ED-SYNC command to enable the specified input to read SSMs.
ED-SYNC:[<tid>]:<aid>:[<ctag>]::<keyword>=<value>;
This command has a default access level of ADMIN.
Sample Command
ED-SYNC::INP1:TS1000::SSMENA=ENABLE;
Autonomous Message
TP-SSU 03-10-24 11:02:28
A 1186 REPT EVT
“INP1,T1:NA,SSMENA,NSA,03-10-24 11-02-28:\"INPUT READING
OF SSM HAS CHANGED,ENABLE\””
;
Defining the SSM Bit Position
After you enable an E1 (CAS/CAS) input to read SSMs, you must then define the bit
containing the SSM.
ED-SYNC:[<tid>]:<aid>:[<ctag>]::<keyword>=<value>;
This command has a default access level of ADMIN.
Sample Command
ED-SYNC::INP1:TS1000::SSMBIT=4;
<aid> <keyword> <value> Description Default value
INPp
p = 1 | 2 SSMENA ENABLE |
DISABLE Provisions the T1 ESF or
E1 (CAS/CCS) input to
read the received SSM ENABLE
<aid> <keyword> <value> Description Default value
INPp
p = 1 | 2 SSMBIT 4 | 5 | 6 | 7 | 8 Provisions the E1 (CAS/
CCS) SSM bit position. 8