Page 130 - Introduction | Appendix D: Use Of The Serial Port |
Appendix D: Use Of The Serial Port
Introduction
The serial port is used, in an emergency, to erase the IPNC configuration or the operational software. For example, if the system is continually rebooting (indicators flashing every 10 seconds), it may be possible to recover the unit from the serial port. It may also be used to erase the customer’s configuration if the password has been forgotten.
An asynchronous terminal, such as Windows HyperTerminal is required, configured for a serial (COM) port as follows:
Speed (bps) | 38,400 |
Data bits | 8 |
Parity | None |
Stop bits | 1 |
Flow control | None |
Emulation | TTY |
Erasing the Configuration
To erase the configuration area of flash memory, i.e., return it to its factory default:
1.Open HyperTerminal on the PC. Attach a serial cable between the PC acting as the terminal and the IPNC.
2.Reboot the IPNC from the INDeX Admin or by removing it and reinserting it.
3.Hit the Escape key [Esc] every second until the Loader message appears.
4.Type AT[Enter] and wait for an OK.
5.Type
6.Type
7.Power the unit off and on again.
Erasing a Configuration from Flash Memory
Loader 1.3 DualFlash
OK
P5 Loader 1.7
at
OK
OK
OK
ATF
Expanding MPPC image...
Note: An alternative method is:
AT
OK
Mon 25/8/1997 00:00:00, Hello>eraseconfig
Mon 25/8/1997 00:00:00, Hello>erasenvconfig
Mon 25/8/1997 00:00:00, Hello>abort
Page 130 - Appendix D: Use Of The Serial Port | INDeX IPNC Cassette Administration Manual |
Introduction | 38DHB0002UKDD – Issue 7 (22/11/02) |