Connection

The AD 650 DCF receiver is delivered with a 10 m cable. The maximum length of the cable depends on its cross-section (at least 0.25 mm²) and can be up to 200 m. We recommend using shielded cable only in critical conditions.

The functionality of the receiver is independent of the connection polarity. Cut the cable to the required length.

With good reception, the LED on the receiver flashes once per second with a skip of 1 pulse at the 59^th second.

Caution

Do not install the receiver close to buildings consisting of metallic steel structures, near to PCs, TV and radio receivers or in places surrounded with thick walls or into underground or cellar areas.

Connection to Master Clock

Connect the AD 650 DCF receiver to the master clock terminal board (+DCF- terminal).

Wire Color	Connector
White	DCF −
Brown	DCF +

Connection to Digital Clock

Caution

For generation 4 digital clock:

It is important to configure DIP switch position to DCF.

Connect the AD 650 DCF receiver to the clock terminal board placed on the anchoring plate (LINE IN terminal).

Wire Color	Connector
White	LINES −
Brown	LINES +

Note

In case of issues with receiving the DCF signal when using the AD 650 / DCF 4500 receiver, it is necessary to ground (connect to PE) one of the signals/inputs (LINES+ or LINES-).

For the ECO-DC clock, it is always necessary to ground one (connect to PE) of the signals/inputs (LINES+ or LINES-).

Wire Color	Connector
White	LINES −
Brown	LINES +
Yellow / Green (PE conductor)	Either LINES + or LINES −