Analog Alarms; Jumper Options - DPS Telecom NetGuardian 216 DCP User Manual

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4.7.2 Analog Alarms

The NetGuardian 216's two analog inputs measure ranges of voltage or current inputs and can be used to measure
battery voltage, charging current, temperature, or other continuously variable conditions. The measurement range
of the analog channels is –90 to +90 VDC or 4 to 20 mA. Note: Default configuration is voltage.
Connect analog inputs 1-2 to the 4-pin connector labeled "Analogs."
4.7.2.1

Jumper Options

Fig. 4.13. Adjustable jumpers on the NetGuardian 216 circuit board
You can change the settings for analog alarm inputs by resetting the jumpers on the NetGuardian 216's circuit
board. To open the unit and expose the circuit board, remove the screws on the bottom and on the sides of the
NetGuardian 216. Then slide the top cover off. Figure 4.13 shows the circuit board and the location of the
adjustable jumpers.
Current
4 to 20 mA
250 Ohm
Current Source
Shunt
Transducer
Voltage
Voltage Source
Transducer
Jumper installed for current
Analog
Channel
Input
Jumper removed for voltage
Analog
Channel
Input
Fig. 4.14. Jumper settings for analog alarms inputs
Unjumpered/Open Position
J6 ANA2
J4 ANA1
Jumpered/Closed Position