Specifications

CDA70 MODEM DESCRIPTION
16
2.5.6. Power supply connector (PWDD)
Pin
number
Signal mark Description
1 +12V Positive pole of supply voltage
2 GND Negative pole of supply voltage
3 PWRSV Open collector output (Power Save) for controlling of supply voltage
of the whole radio modem, see chapter 3.4
4 IN1 Input -power failure supervision. (Analogue input 0-16V)
On the power supply connector it is possible to use the signal INAC (NAP230) for
present AC voltage monitoring for power supply (it can be functional only in case of supply
accumulator backup).
Beware, on INAC (NAP230) input it isn't possible connect link voltage 230 V direct!