The MTDC-4 is a 2-4 door access control Interlock (man trap) board designed to be used with 2-4 standalone access control readers, two networked access control readers or pass through mode (no readers). The MTDC-4 accepts door contact inputs and lock release inputs from 2-4 access control readers and controls the lock release functions and traffic LED states according to the door states and the board’s interlock logic. Includes: MTDC-4 board Installation instructions. Options:TLP-SS Traffic lights on a stainless steel plate Features: Accepts 12-24Vdc and drives locks directly Current draw 4 Amps max. NC door contact inputs Isolated NC door contact outputs Selectable Normally Open or Normally No Voltage Door Release Inputs Trigger Voltages input range of 5-24vdc, 5ma max current drain. Auto re-settable fused lock Voltage outputs Normally No Voltage or Normally Voltage Lock Outputs 1amp maximum. Traffic light outputs. Selectable pass through mode for open facility man trap spaces (no readers required). NC or NNV Fire alarm override input: unlocks both doors and causes traffic lights to alternately flash at .5Hz. Adjustable 0-60 second Interlock Delay timer. Delay timer output relay for controlling ventilation or other equipment during the interlock delay time in the man trap space. Dimensions L5.33 x W4.49x H1.00 Operating Temperature 0-70C. Weight .1bs
