DPS NetGuardian 16, Руководство пользователя

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Analog Alarms 5.7
The NetGuardian 16's 8 analog alarm inputs measure continuous ranges of voltage or current. Analog
alarms are typically used to monitor battery voltage, charging current, temperature, humidity, wind
speed, or other continuously changing conditions. The measurement range of the analog channels is –
90 to +90 VDC or 4 to 20 mA. To configure the analogs for current sensing (4 - 20mA) please review
the next section for jumper position.
You can use analogs 1 through 4 to monitor whatever you like. Analogs 5 through 8 are pre-configured
to monitor Battery A and B, Internal Temperature, and External Temperature. Read the following table to
see where to connect the analogs.
Analog # Connection
ANA 1 User-definable; connects to the 50-pin amphenol.
ANA 2 User-definable; connects to the 50-pin amphenol.
ANA 3 User-definable; connects to the 50-pin amphenol.
ANA 4 User-definable; connects to the 50-pin amphenol.
ANA 5 Pre-configured to monitor Battery A.
ANA 6 Pre-configured to monitor Battery B.
ANA 7 Pre-configured to monitor Internal Temperature. Located in the
center or edge of PCB.
ANA 8 Pre-configured to monitor External Temperature via jack to
external temperature probe.
By default, the analog inputs are configured to measure voltage. You can switch the analog inputs to
measure current by resetting jumpers on the NetGuardian 16 circuit board.
5.7.1 Switching Analog Alarms to Current Operation
Fig. 5.7. Adjustable jumpers on the NetGuardian 16 circuit board
By default, the analog inputs are configured to measure voltage. You can switch the analog inputs
to measure current by resetting jumpers on the NetGuardian 16's circuit board.
To test the analog alarm voltage/current jumpers, follow these steps:
1. Make sure the NetGuardian 16 is depowered and disconnected from all network connections.