CAS NT-580A - Serial Communication; RS232 C Connection

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8
8. Serial Communication (RS-232C)
8-1. RS232C Connection
① How to Connect PC
Connect the serial port on the rear panel of the indicator to the serial port of PC as follows.
COM1 - TXD: 2, RXD: 3, GND: 7
RXD 3 O ------------------------------------
O
2 Transmit Data
TXD 2 O ------------------------------------
O 3 Receive Data
GND 7 O ------------------------------------
O 5 Signal Ground
┌─
O 8 Carrier Detect
├─
O 20 Data Terminal Ready
└─
O 6 Data Set Ready
┌─
O 4 Request to Send
└─
O 5 Clear to Send
9 pin port(Male) 25 pin port(Female)
RS-232C port of NT-580A Serial port of computer
COM2 - TXD: 2, RXD: 3, GND: 7
RXD 3 O ------------------------------------
O
2 Transmit Data
TXD 2 O ------------------------------------
O 3 Receive Data
GND 7 O ------------------------------------
O 5 Signal Ground
┌─
O 1 Carrier Detect
├─
O 4 Data Terminal Ready
└─
O 6 Data Set Ready
┌─
O 7 Request to Send
└─
O 8 Clear to Send
9 pin port(Male) 9 pin port(Female)
RS-232C port of NT-580A Serial port of computer