Section 2: General operation
Models 707B and 708B Switching Matrix Reference Manual
2-32
707B-901-01 Rev. B / January 2015
To avoid possible mechanical damage, stack no more than three connectors on any one instrument.
To minimize interference caused by electromagnetic radiation, use only shielded IEEE-488 cables.
Contact Keithley Instruments for shielded cables.
To connect the instrument to the IEEE-488 bus, line up the cable connector with the connector on the
rear panel. Install and tighten the screws securely, making sure not to overtighten them. The following
figure shows the location of the connector.
Figure 30: Model 707B rear panel IEEE-488 connection
Connect any additional connectors from other instruments as required for your application. Make sure
the other end of the cable is properly connected to the controller. You can only have 15 devices
connected to an IEEE-488 bus, including the controller. The maximum cable length is either two
meters (6.5 feet) multiplied by the number of devices or 20 meters (65.6 feet), whichever is less.
Erratic bus operation may occur if you ignore these limits.
Figure 31: Model 707B rear panel IEEE-488 connection