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The Market Central D1000 A/B Layer 1 Switch connects port A or port B to a Common(C) port through latching or non-latching relays or fiber optic switch mechanisms. Latching units maintain the connection state with or without power. Non-Latching units will switch to port A with power loss and remain in A when power is restored.All Models allow manual control of the connection state through pushbuttons on the front, and include a 6 position terminal block on the rear for remote status and control via external dry contact closure. The Serial RS232 models have a DB9 serial port to control and monitor the connection state. The Ethernet models have a 10base-T port on the front which allows remote control and monitoring using a web browser, telnet, SNMP or SwitchCenter GUI application.
