Black Box Remotely Controlled Layer 1 A/B Switch - DB9

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Durable and reliable. Tested to 1,000,000 cycles Manual control of the switch port supported through A/B push button on the front. Can be switched remotely via RS-232 or dry contac t. If desired, the A or B control input can remain connected to the Ground input, which will disable all other control interfaces including the front panel pushbutton switches from being able to switch connection states of the A/B Switch. Connecting (shorting) input B (pin 3) to Ground (pin 2) for a minimum of approximately 100 msec will cause the unit to switch to the B position. Connecting (shorting) input A (pin 1) to Ground (pin 2) for a minimum of approximately 100 msec will cause the unit to switch to the A position. The connection state will be maintained if power fails or is removed. Manual control of the switch port connection state is supported through pushbutton switches on the front of the unit. Switch ports are transparent to data rates, formats, and protocols and can handle speeds up to 10 Mbps. Show more