Digital Switch Matrices

December 1, 2007

The Electronics Group of Crane Aerospace & Electronics, Redmond, WA, has released its Model 1130 and Model 1120 digital switch matrices that are configured to accommodate up to 144 inputs and 144 outputs that can be distributed among clock and data signals. They provide full fan-out operation, allowing each input to be routed to any or all outputs simultaneously. They are also nonblocking, meaning that any number of input and output combinations can be connected. These devices are suitable for large data routing installations.

The Model 1130 matrix can be configured to provide switching for high data rate emitter coupled logic (ECL) up to 300 Mb/s, while the Model 1120 matrix can be configured for the lower data rate of RS-422 signals. Both matrices offer a choice of input and output circuit interface cards.

The matrices incorporate redundant and user replaceable power supplies. They provide an alarm when failure occurs enabling the failing power supply to be powered down and replaced from the front of the unit while the matrix remains operational.

The models 1130 and 1120 also include user programmable signal presence/loss detection at each output. A modular design allows user serviceability with built-in test features. The units can be commanded from the front panel using a keypad and color graphical display, through an RS-232 direct interface, or through a 10/100 TCP/IP LAN interface. All choices offer full access to the available command set.

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