Front Panel Card Programming - Keithley 7090 Instruction Manual

3-4 Operation

Front panel card programming

Selecting the single-channel mode
1.
2.
3.
4.
5.
6.
The message "SELECT CHANNELS" is displayed, and the current state of all channels is
shown. At this point, you can enter a single desired channel that is to be opened or closed
via the numeric keypad.
Closing a single optical channel
1.
2.
After the appropriate close time elapses, the selected channel will be closed, and a valid
optical connection will be maintained.
NOTE
Opening an optical channel
1.
2.
3.
Resetting the optical switch
To reset the optical switch at any time, simply press the OPEN ALL key. Recycling power
will result in a reset condition as well.
Upon initial power-up of the Model 7001, wait until the menu system becomes
active.
Press the SCAN CONFIGURATION key.
Press the key three times to select "CHAN-RESTRICTIONS."
Press ENTER, select "SINGLE-CHAN," then press ENTER again.
Press the key once, select "ON," and press ENTER. (Auto-reset is performed at
this time.)
Press the EXIT key twice to return to the channel status display.
Select desired channel to close (1-N). For example, to close channel 3 on a card
installed in slot 1, key in 1!3 via the numeric keypad.
Press the CLOSE key.
Be sure to close only one channel at a time.
Select the desired channel to open (1-N). For example, to open slot 1, channel 3,
key in 1!3 via the numeric keypad.
Press the OPEN key.
Because of the single-channel nature of the switch module, opening a given
channel results in an optically blocked connection, which is identical to the reset
position.
Model 7090 Instruction Manual