User's Manual

CHAPTER3
UnderstandingConnectors
14
Chapter3.Pe r fo rm i n g Advanced
Functions
With the appropriate knowledge, you can configure A753 remote
wireless units in the field by using a hyperterminal window. To
configure the devices, you will need a special serial cable adapter (not
supplied, but available from your Adcon distributor).
 CAUTION Do not try to configure your devices if you are not sure what to do—
the unit might not communicate with the base station or function with
the addVANTAGE software.
 WARNING Tampering with parameters for the devices may void your warranty or
damage the device. In general, the commands described in this
chapter are intended for technical support staff and users with a great
deal of highly technical hardware and software experience.
UnderstandingConnectors
The devices have cable attachments called connectors. The connector
type determines how the device communicates with the sensors or the
computer.
ThePOWERConnector
The A753 RTU has a Power connector used to interact with the device.
The connector features the following pins:
• Solar Input, which enables charging the internal batteries.
 CAUTION To charge the unit without causing damage to the batteries or the
charging circuit, the electrical characteristics in Table 3 on page 14
must be maintained.
Table 3. Charger Requirements
Parameter Value
Output voltage 9-10VDC
Output current (limitting is required) 100-300mA