Symmetricom 1100 User Manual

Chapter 6 Maintaining and Troubleshooting the TimeProvider
Upgrading the Firmware

190  TimeProvider User’s Guide

3. To start the download, issue the command

ACT-SWDL::IMC:TP1000; 

The TimeProvider issues an In-Process response, the TL1 connection closes, 
and the TimeProvider waits to receive the upgrade software using the Ymodem 
protocol.

4. Use a Ymodem file transfer program such as SynCraft to transfer the upgrade 

software to the TimeProvider. You must start the transfer within 60 seconds or the 
TimeProvider issues a Deny response. The new software is loaded into the IOC, 
after which it is rebooted and enters the Warm-up mode for up to 30 minutes.

5. The COMPLD message appears after a successful transfer.

6. Restore the contents of the IOC memory from the IMC by issuing the command:

CPY-MEM:::::IMC,IOC,IOC;

Upgrading Redundant IOCs
To avoid output interruptions, the TimeProvider must be in the following state:

Two installed and communicating IOCs

Both IOCs are in the Locked mode

Both IOCs are In Service

Both IOCs are alarm-free

One IOC is Active

If any of these conditions are not present, then the outputs are interrupted for up to 
30 minutes until the upgraded IOC enters the Locked mode.

To upgrade the software in both IOCs, use the following procedure:

1. Log in to the TimeProvider with an Admin- or Security-level user id and 

password.

2. Back up the contents of the IOC memory in the IMC by issuing the command:

CPY-MEM:::::IOC,IMC,IOC;

3. Start the download by issuing the command:

ACT-SWDL::IMC; 

The TimeProvider issues an In-Process response, the TL1 connection closes, 
and the TimeProvider waits to receive the upgrade software using the Ymodem 
protocol.