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The Pin definition of 9 PIN D-SUB
1. RS-232
RS-232 9 PI N D-SUB m ale
2
5
3
Rx
GND
Tx
2. RS-422
RS-422 9 PIN D-SU B male
6
8
7
Rx +
TX +
Rx -
9TX -
5GND
Switch between RS-422 / RS-485 (by using 8-PIN DIP switch)
8-PIN DIP switch RS-485 RS-422
SW1 ~ SW4 On Off
SW5 ~ SW8 Off On
Battery Life and Precision of Real Time Clock
Battery Life
Temperature (°C) -20 0 20 60
Life (Year) 2.0 2.5 2.7 2.8
Precision of Real Time Clock
1. At 0°C/32°F, the maximum error is -117 sec./month.
2. At 25°C/77°F, the maximum error is 52 sec./month.
3. At 55°C/131°F, the maximum error is -132 sec./month.