GW Instek LCR-6100 - Remote Control; About RS-232 C; Figure 10-1 the RS-232 Connector on the Real Panel

LCR-6000 Series User Manual
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10. REMOTE CONTROL
This chapter provides the following information to remotely control the LCR-
6000 Series via the RS-232C:
 About RS-232
 Select Baud Rate
 About SCPI
LCR-6000 Series can use the RS-232 interface to communicate with the
computer to complete all the instrument functions.
10.1 About RS‐232C
You can connect a controller (i.e. PC and PLC) to the
RS-232 interface using a GWINSTEK RS-232 DB-9
cable. The serial port uses the transmit (TXD), receive
(RXD) and signal ground (GND) lines of the RS-232
standard. It does not use the hardware handshaking lines
CTS and RTS.
NOTE:
Only use a GWINSTEK (null modem) DB-9 cable.
Cable length should not exceed 2m.
Figure 10-1 The RS‐232 connector on the real panel
Pin 2: RxD
Pin 3: TxD
Pin 5: GND
Pin 1, 4, 6 ~ 9: No Connection