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Model 2700/2750 ROM Upgrade
Keithley Instruments, Inc.
28775 Aurora Road Notice for Models 7701, 7711, and 7712 Support
Cleveland, Ohio 44139
(440) 248-0400
Fax: (440) 248-6168
Introduction
Read this first
The Model 2700/2750 mainframe requires firmware revision B04 or higher (B05, B06, etc.) to properly support the Model 7701
150V 32-Channel Differential Multiplexer switch card, the Model 7711 2GHz RF module, and the Model 7712 3.5GHz RF module.
The Model 2750 mainframe requires version A03 or higher to support these modules. If the firmware revision of your device is lower
than B04 for the Model 2700 and A03 for the Model 2750, a ROM upgrade is required.
Step 1. Determine the firmware revision of your Model 2700/2750
The firmware revision is briefly displayed during the power-on sequence of the instrument. When the instrument is turned on, all dis-
play annunciators will turn on for a short period of time. After that, the firmware revision will be briefly displayed as follows:
REV: yyy zzz
where: yyy is the mainframe firmware revision (e.g., B04 of the Model 2700, A03 of the Model 2750).
zzz is the display board firmware revision (e.g., A01), which does not apply to this upgrade.
To determine the firmware revision remotely, use the *IDN? query command. After sending the *IDN? command and addressing the
instrument to talk, the following response message is sent to the computer:
KEITHLEY INSTRUMENTS INC., MODEL wwww, xxxxxxx, yyy/zzz
where:
wwww is the mainframe model (2700 or 2750).
xxxxxxx is the serial number of the mainframe.
yyy is the firmware revision of the mainframe.
zzz is the display board firmware revision (e.g., A01), which does not apply to this upgrade.
Step 2. Determine the next course of action
Based on the firmware revision of your Model 2700 or 2750, choose the appropriate course of action: