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10. Input/output functions
10.1 Terminal Numbers and Functions
Terminal Number Signal Input/output Function & remarks
1 EXT.TARE Input External tare subtraction
※
2 DTR Output HIGH (when balance is powered-up)
3 RXD Input Receiving data
4 TXD Output Transmitting data
5 GND — Signal ground
1
4
2
5
3
RS232C connector (DIN 5-pin): Rear panel
Compatible plug: TCP 0556-01-0201 (Hoshiden - supplied with balance)
※Tare subtraction (zero adjustment) is possible by connecting an external tare subtraction input and a
signal ground, through contacts or a transistor switch. When following this procedure, secure a
connection time of at least 400 milliseconds. (When the switch is off, the voltage maximum is 15 V;
when the switch is on, the sink current is 20 mA or less.)
Caution:
Before plugging in the connectors, unplug the AC adapter.