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BE-801259.05-HN 60&61master clock
2.6 GPS Antenna connecting
2.6.1 Integrated GPS receiver
The magnetic GPS antenna can be connected to the HN 61 variant
2.6.2 External GPS receiver
An external GPS receiver with DCF code output, eg GPS 4500, can be connected to
the HN 61m as a source of synchronization signal
(eg if a sufficiently long extension of the coaxial cable of the magnetic GPS antenna
is not available).
2.7 Switching channel
The CH1 terminal (or RELAY 1) serves to control the externally connected equipment.
School bells or external equipment can be powered with 24 V DC.
Fig .: Connection of school bells
Fig .: Connection of external devices with 230 VAC power supply