(optional) Serial Port, RS-232

The Link 10 may be equipped to transmit serial communications data to a personal computer or a data logging device. When equipped with the optional RS-232 port, the Link 10 will transmit a data message once a second. The structure of this data is as follows:

Data Rate:

9600

Data Bits:

8

Stop Bits:

1

Parity Bits:

None

Word:

ASCII Characters, comma delimited

OutputFormat:

Time, kWh, amps, volts, amp hours, Peukert amp hours, Peukert amps, time remaining, bar graph state, temperature (degrees C).

Time is elapsed seconds since last amp hour reset. Kilowatt hours are signed

+or -, amp hours are signed + or -, amps are signed + or -, volts are positive, time remaining is in hours or tenths of hours.

Peukert amps and Peukert amp hours are compensated for Peukert's equa- tion. These numbers are primarily intended for our development and trouble- shooting. Please do not attempt to interpret these numbers.

The Bar Graph state is indicated by the following integers:

1<20%, 2<40%, 3<60%, 4<80%, 5<100%, 6 = Full (Charged Params met) If the Low Battery Output is activated, the Bar Graph state is indicated as: A<20%, B<40%, C<60%, D<80%, E<100%, F = Full (Charged Params met)

Pin Out:

The serial connection is via the DB-9 connector on the rear deck of the Link 10. See additional notes on page 11. The pin connections are as follows:

Pin 2Receive Data line Pin 3Transmit Data line

Pin 5Ground. This is connected to battery pack (-). The shell of the DB-9 is NOT grounded.

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