Operator Maintenance Procedures
6-24 PN: 10585-00001 Rev. P ML2437A/38A OM/PM
6-15 Operator Maintenance
The ML243xA does not require any operator maintenance. All repairs must be performed by
qualified service personnel only.
Software Loader Instructions
The latest version of the firmware can be downloaded from the Anritsu website at
http://www.anritsu.com
1. Copy appropriate self-extracting zip file to empty directory.
2. Double click on zip file icon. This will extract all files to the current directory.
3. Connect PC com port 1 or 2 to power meter using Null modem cable (Anritsu p/n
2000-1544). As a minimum you need TX & RX (pins 2 & 3) swapped and RTS & CTS
(pins 7 & 8) swapped.
4. Ensure the Powermeter is powered-on.
5. Put power meter into bootload mode. Select SYSTEM> more> more> more>. Press the
blank softkey twice, and select "BOOTLOAD". The power meter is now in bootload
mode, waiting for input from the PC.
6. If using COM1 for bootload, double click on DOS batch file icon "Q_BOOTQ1" for
ML243xA or "Z_BOOTQ1" for ML240xA. If using COM2 then use files ending in Q2.
7. If PC will not run dos batch files, open DOS window in the directory where the files are
stored and type: "bootload q 1 quart_fl" return. If using com2 change 1 to 2 in the
command line. If loading ML240xA, change quart_fl to zippy_fl.
8. While loading, the powermeter screen will turn off, and the PC screen will show the files
being loaded, and a counter indicating progress.
9. Wait approximately 5 minutes for the bootload process to complete.
10. When finished, the power meter will restart, and the PC program will indicate that it
has finished.
Note
Do not remove power from the product while loading firmware. This is not
recoverable without returning the power meter to a customer service centre.
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