Barrier manual closure monitor

When station and line level crossing barriers are closed manually, the unit reduces the risk of them being left closed by sounding an acoustic signal at intervals until they are released.

The unit receives the signals that operate the control panel of the relay interlockings used on the Hungarian railways. This parallel connection does not affect the correct operation of the panel. The bell that gives the acoustic signal is built into the unit.

Technical data

• Size, mounting: single-width rack unit
• Supply voltage: 24 V AC
• Number of inputs: state of 4 line and 2 station level crossings
• Input signal level: panel output with 24 V nominal voltage, DC or AC

References

• 1,000 units in operation in MÁV control panels