Black Box Pro Switching Gang Switch Controller Card - 4U - For Switching Network - 1 x RJ-45, 2 x RJ-11, 2 x Alarm - TAA Compliant

Supports Gang Switching using an external +12 VDC signal or external remote contact switches. A key lock switch on the rack allows the user to enable or disable manual switching. Controller card has input for two external power supplies. Supports individual card switching, Rack switching, and System Gang Switching using the front panel push-button switches.