What is CCR remote control?
Operating a constant current regulator from the tower or control room, with a clear rule for who is in charge and proof that the circuit did what was asked.
CCR remote control lets a controller switch a circuit on or off and select its brightness step from the tower panel or a control-room workstation, with no visit to the CCR. The command travels through the airfield lighting control system and its link to the CCR, which acts on it only if its local / remote selector is set to remote.
The CCR then reports its actual state, step and output current as confirmation feedback, so the operator can see the command was carried out. Priority rules and interlocks prevent conflicting commands, and local mode blocks remote commands while someone works at the CCR. If remote control is lost, an alarm is raised and the CCR follows its configured fallback.
- Select. The operator chooses a circuit and the required state or brightness step.
- Check authority. The control system confirms that this position is allowed to give the command.
- Send. The command passes along the link to the CCR controller.
- Accept. The CCR acts only if the selector is in remote and no interlock blocks it.
- Confirm. State, step and output current return to the control position.
- Fall back. On loss of control, raise the alarm and use local control at the CCR if needed.
Frequently Asked Questions
Q1What is CCR remote control in airfield lighting?
Operating a constant current regulator from a distance, such as the control tower or a control-room workstation, to switch a circuit on or off and select its brightness step without going to the CCR.
Q2Who can control a CCR remotely?
Usually air traffic control from the tower panel and authorised lighting staff from a control-system workstation. Which position has authority at any time is set by the airport’s procedures and the control-system configuration.
Q3What does the local / remote selector do?
It decides where the CCR takes its commands from. In remote, the control system is in charge. In local, only the panel on the CCR responds, which keeps remote commands from changing the output while someone is working on it.
Q4Why does the control position need confirmation feedback?
A command is not proof of action. The CCR reports its actual state, step and output current back, so the operator sees that the circuit really reached the requested brightness, or sees an alarm if it did not.
Q5What are interlocks in remote control?
Rules that stop an unsafe or conflicting command. For example, remote control is inhibited while the CCR is in local mode, and some lighting combinations are allowed only in the permitted pattern for that airfield.
Q6What happens if remote control is lost?
The control system shows a communication or control alarm. The CCR follows its configured fallback, and staff can take the circuit under local control at the CCR until remote control is restored.
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