Fidelity Electronics A10 - 5. Power Adaptor, Built-In Batteries & Recharging; 5.1 Power Adaptor; 5.3 Before First Time Use

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4.2 Multi-Function Comport Pin Assignment Table
Pin #
Pin Assignment
1
RS485 A
2
RS485 B
3
TTL TXD
4
TTL RXD
5
TTL GND
6
External Input GND
(Do not mix/share this ground with others)
7
External Input #1
8
External Input #2
9
External Input #3
4.3 RS232 Comports Pin Assignment for Comport 0 & Comport 1
5. Power Adaptor, Built-In Batteries & Recharging
5.1 Power Adaptor
Always use the power adaptor supplied with this instrument to avoid unrecoverable damages.
5.2 Before Plugging in Power Adaptor to Electricity Grid
Check if the input voltage marked on the power adaptor matches with the local electricity grid. If not, do not plug
in and contact your dealer immediately.
5.3 Before First Time Use
To ensure the best battery performance, recharge the built-in battery for at least 8 hours before first-time use.
5.4 CR1220 Real-Time Clock Backup Battery
A CR1220 battery is installed to back up the system real-time clock and other application parameters. Replace
this battery with a new one every 12 months for best performance. Contact your dealer for more information
and supports.
5.5 Battery Voltage & Battery-Operation Application
Battery voltage is displayed by Battery Level Indicator and by internal function F2.
When the battery voltage level drops below 6.0, battery-operated time may less than 60 minutes (depends on
actual system configuration).
Comport 0 (Male)
Comport 1 (Female)
2 = RXD
2 = TXD
3 = TXD
3 = RXD
5 = GND
5 = GND
9 = DC 5V Output
Nil