Model: 4020
Operating System: (Note: might work with other versions of this os.)
File: AP128_Boot_x1.8.3.exe
Comments:
Boot Image
The Console Port uses the above files to upgrade the AP128 to the latest firmware. A terminal program such as HyperTerminal in Windows that supports Zmodem file transfers is necessary. To update the AP11 going through the Console Port, you must do the following:
Connect the RJ45 to RJ45 serial cable that is supplied to the console port on the AP128 and the other end to a serial port on a system. (A DB9 to RJ45 is supplied with the AP128).
Set up the terminal program (HyperTerminal or any program that supports Zmodem file transfer) for 38400 and N, 8,1. X/on-X/off handshaking should also be selected.
Press <enter> and a "$" prompt should appear to indicate that you are communicating correctly with the AP128.
Power the AP128 on and you should see information scrolling on the terminal screen. The message "Type Boot to Bypass Main Image will appear."
Type the word "boot" and this will boot the AP128 into the system boot rom image area. At the end of the process, the message "Waiting for Code Upload" will appear.
Start the file transfer using Zmodem protocol and load the file AP128_xBoot_1.8.3.exe which is the boot image.
Do not interrupt the upload or power off the AP128 during the process. This will cause the unit to be inoperable and necessitate it to be returned for repair.
When the upload is complete then perform a second upload with the system rom image (AP128_xMain_1.8.3.exe).