
LF(R) Series Operation Manual
6 Input/Output to/from External Devices
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6-2 Connection of interface and the
external equipment
The balance communicates with external devices such as a PC via the RS-232C
interface.
The RS-232C interfaces equipped on the balance are a type-B USB and a D-SUB9P.
Connection with external devices is established with the following specifications:
Disconnect the AC adapter of the balance before connecting external devices.
6-2-1 Connector pin numbers and functions of the D-SUB9P
The D-SUB9P connector equipped on the balance has the following pin alignment:
Pin
number
Signal
name
Input/Output
Function & Remarks
1 –
–
–
2 RXD
Input
Receiving
data
3 TXD
Output Transmitting
data
4
DTR
Output
HIGH (When the balance is
powered ON)
5 GND –
Signal
ground
6 –
–
–
7 –
–
–
8 –
–
–
9
EXT.TARE
Input
External tare range setting
Содержание LF Series
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Страница 143: ...Appendixes LF R Series Operation Manual 132 Span test with internal weight Span test with external weight ...
Страница 145: ...Appendixes LF R Series Operation Manual 134 α check Display test α check Key test ...
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Страница 154: ...LF R Series Operation Manual Index for Terms 143 Memo き ...