Setting The Input Frame Type; Controlling Automatic Reference Switching - Symmetricom TimeProvider 1000 User Manual

Chapter 4 Provisioning the TimeProvider
Provisioning the Input Reference

Setting the Input Frame Type

Use the ED-SYNC command to provision the type of framing present on the input
signal.
ED-SYNC:[<tid>]:<aid>:[<ctag>]::<keyword>=<value>;
If you provision the TimeProvider to the Subtending mode (see
Mode, on page 96), then the input frame type is automatically set to Composite
Clock type signals. You can set the FRMTYPE to CC, JCC, or JCC4 when the
TimeProvider is in the Subtending mode.
When using E1 signals in the SSU mode, you can only enter CCS in the FRMTYPE
keyword. The TimeProvider accepts both CCS and CAS inputs without a fault (if the
input is fault-free).
This command has a default access level of ADMIN.
<aid> <keyword>
INPp
p = 1 | 2
FRMTYPE
Sample Command
ED-SYNC::INP1:TS1000::FRMTYPE=ESF;
Autonomous Message
A 1181 REPT EVT
TYPE HAS CHANGED,ESF\""
;

Controlling Automatic Reference Switching

The TimeProvider can determine which input reference signal has the highest
quality. When the active reference signal falls below a preset quality level, the
TimeProvider can automatically switch to the next highest input reference signal. To
use this feature, you must enable Automatic switching.
You can also use the performance monitoring features to automatically switch the
input reference signal when user-defined performance thresholds are crossed. See
Setting MTIE and FFOFF
and using performance monitoring commands.
102 TimeProvider User's Guide
<value>
2M (2.048 MHz) | CCS |
D4 | ESF | 1.544 MHz |
6.312 MHz | CC | JCC |
JCC4
TP-SSU 03-10-24 10:50:05
"INP1,T1:NA,FRMTYPE,NSA,03-10-24 10-50-05:\"INPUT FRAMING
Thresholds, on page 108 for more information on setting
Setting the System
Description
System input
Provisions the frame
signal type used by
the input.
097-58001-02 Revision C – August 2005
Default value
2M (E1)
ESF (T1)