Alpro Two Door Interlock Control Board

Alpro IEC-IB1 Two Door True Interlock Controller

The Alpro IEC-IB1 is a processor controlled two door true interlock controller that prevents both doors opening simultaneously. Designed for integration into access control systems, this unit ensures that when one door is closed and locked, the other door can be opened and operated. The interlock controller operates on dual voltage 12 or 24V DC and features pluggable terminal blocks and nylon stick-on mountings for flexible installation.

The IEC-IB1 is fully expandable to an infinite number of doors via simple cross-wire connections between additional boards. Each door has independent controls including individual timer settings and door override inputs. Nine engineering LEDs provide rapid on-board diagnostics, and a door status LED output allows remote signal indication.

Key Features

• Processor controlled true interlock prevents simultaneous door opening
• Dual voltage 12 or 24V DC operation
• 5 Amp double pole changeover relay per door (1 powered output, 1 volt free)
• Dual alarm output - selectable door forced or door left open
• DIP switch controls for adjustable door open time (0-62 seconds) and alarm delay (0-45 seconds)
• Cancels remaining door open time on closing of active door
• Independent controls for each door including timer settings and override inputs
• Door status LED output for remote indication
• 9 engineering LEDs for on-board diagnostics
• Fully expandable to infinite number of doors via cross-wire connection
• Locked or unlocked operating modes
• Pluggable terminal blocks and nylon stick-on mountings supplied

Technical Specifications

• Voltage: 12 or 24V DC
• Relay Output Per Door: 5 Amp double pole changeover (NO, NC, C)
• Alarm Output: 1 Amp full changeover relay (door forced or door left open)
• Door Open Time: 0-62 seconds adjustable via DIP switch
• Door Alarm Delay: 0-45 seconds adjustable via DIP switch
• Operating Modes: Locked (all doors locked) or Unlocked (all doors open)
• Expandability: Infinite doors via cross-wire connection to additional IB1 boards
• Installation Aids: Pluggable terminal blocks, nylon stick-on mountings

Dimensions

• PCB: 171mm x 101mm