2
Closing and Opening
Switching
Module Channels
• Close/open overview — Summarizes the two operating modes to control
switching modules: System channel operation and multiple channel operation.
• Switching module installation and connections — Explains how to install a
switching module (or pseudocard) into the Model 2700 mainframe. Also explains
where to find connection information which should only be performed by qualified
service personnel.
• Channel assignments — Explains the format for specifying the mainframe
channel assignment which is made up of the slot number and switching module
channel number.
• System channel operation — Provides detailed information for using system
channel operation.
• Multiple channel operation — Provides detailed information for using multiple
channel operation. Due to safety considerations, this operating mode should only
be used by experienced test engineers.
• Identifying installed modules & viewing closed channels — Explains how to use
the CARD menu to identify installed switching modules and view closed channels.
Explains how to remotely identify installed modules (*OPT?) and summarizes
other query commands that can be used to acquire information about the installed
modules.
• Model 7700 switching module — Covers operating characteristics that are unique
to the Model 7700. Also includes a simplified schematic diagram of the switching
module.
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