Symmetricom 1100 Enabling CRC4, Using Performance Monitoring, Setting Mtie and Ffoff Thresholds

Chapter 4 Provisioning the TimeProvider

Provisioning the Input Reference

This command sets the SSM bit to position 4 in the E1 input string on Input 1.

Autonomous Message

TP-SSU 03-10-24 11:05:18 A 1187 REPT EVT

“INP1,T1:NA,SSMBIT,NSA,03-10-24 11-05-18:\"E1 SSM BIT HAS CHANGED,4\””

;

Enabling CRC4

Use the ED-SYNC command to enable or disable the use of CRC4 on E1 inputs.

ED-SYNC:[<tid>]:<aid>:[<ctag>]::<keyword>=<value>;

This command has a default access level of ADMIN.

<aid>	<keyword>	<value>	Description	Default value
INPp	CRCENA	ENABLE	Provisions the use of	DISABLE
p = 1 2		DISABLE	CRC4 on E1 inputs

Sample Command

ED-SYNC::INP1:TS1000::CRCENA=ENABLE;

Normal Response

TP-SSU 03-10-24 11:06:57 A 1188 REPT EVT

“INP1,T1:NA,CRCENA,NSA,03-10-24 11-06-57:\"INPUT CRC HAS CHANGED,ENABLE\””

;

Using Performance Monitoring

You can set thresholds for alarms and for qualifying inputs using MTIE and FFOFF data. For more information on performance monitoring, see Performance Monitoring, on page 24.

Setting MTIE and FFOFF Thresholds

Use the SET-TH command to set the alarm thresholds for each input and each MTIE window.

SET-TH:[<tid>]:<aid>:[<ctag>]::<keyword>=<value>;

This command has a default access level of ADMIN.

116 TimeProvider User’s Guide 097-58001-02 Revision G – April 2008