The Keithley 7002 400-Channel Switch System Control Mainframe is a 10-slot mainframe that supports up to 400 2-pole multiplexer channels or 400 matrix crosspoints. The front panel includes a unique interactive display of channel status for quick programming. Scanning speeds of up to 300 channels per second are possible with the high density switch cards. The wide selection of more than 30 different switch cards makes the 7002 one of the most flexible switching mainframes available.

Reduce the Size and Cost of Your Switching Application

A single Model 7002 mainframe can accommodate up to ten 40-channel cards. That’s 400 channels in a single full-rack package that is only 178mm high (7 in). This level of density provides some important advantages. First, it reduces the amount of switching hardware required for a given application. Second, it provides high flexibility. The high density cards can be used with the special signal cards to cover all your signal needs for a large application with one mainframe.

The 7002 is fully compatible with all 7001 switch cards. From this broad selection of 17 cards, you can assemble a switch configuration that will ensure signal integrity and minimize errors. These cards allow the 7002 to switch DC signals from femtoamps to amps, nanovolts to kilovolts, as well as RF and optical signals.

The analog backplane used by the high density cards adds configuration flexibility and eliminates intercard wiring. For example, the outputs of a multiplexer card can be connected to the row inputs of a matrix card. Or, the outputs of ten multiplexer cards can be connected to form one large 1x400 multiplexer. Intercard wiring is eliminated by using the analog backplane to form these configurations.

Faster Test Development

The interactive front panel display helps shorten the time required to configure the 7002 and develop test software. The display indicates the open/close status of each channel in the mainframe. This information is very useful when programming the 7002 and developing application software. Knowing the channel status also helps to verify proper operation during the debug phase.

The interactive front panel display helps shorten the time required to configure the 7002 and develop test software. The display indicates the open/close status of each channel in the mainframe. This information is very useful when programming the 7002 and developing application software. Knowing the channel status also helps to verify proper operation during the debug phase.

An optional light pen provides point and click programming from the front panel. By selecting the desired channels or range of channels, the scan list can be built, matrix patterns created, channels opened or closed, and patterns stored in memory. The 7002’s non-volatile memory stores up to 500 complete switch patterns.

When the high density cards are installed, the 7002 automatically configures each slot independently for the proper card. The channel status display on the front panel adjusts to show each card’s capacity and configuration.

At the touch of a button, the operator receives context- sensitive, on-line information to help configure the system. This information is displayed on a 52-character alphanumeric display for clear and readable messages. There is no need to refer constantly to the operator’s manual. All information messages, operating instructions, and prompts are available in English, German, and French. Just select the desired language in the configuration menu.

The 7002 allows specific channels to be locked out from closure. This restriction can be conditional based on the open/close state of other channels or crosspoints. This capability is useful to prevent certain signals from being accidentally connected to high power circuits, for example.

System Throughput

The 7002 can scan through up to 300 channels per second. This scan process can be controlled by the internal time base of the 7002 or through external triggers. The scan sequence is controlled by what appears in the scan list. The scan list can include channels, ranges of channels, and memory locations. This approach gives maximum flexibility while obtaining maximum throughput.

The built-in scan control eliminates the need for the computer to control every step of the test procedure. Simply program the 7002 to control the channel spacing, scan spacing, and number of scans. Trigger Link gives you access to six independent hardware trigger lines on a single cable.