Yaskawa MP940 - Manual (Page 191)

5.3 Connection Methods
5-19
5
Serial Port 1 (RS-232C) Connection
The serial port 1 (RS-232C) connection is shown below.
„ Serial Port 2
Connector Pin Arrangement and Signal Names
The following table describes the serial port 2 connector pin arrangement and signal names.
∗ 1. The terminating resistance (100 ) is connected by connecting to
RX( ).
∗ 2. The terminating resistance (100 ) is connected by connecting to
TX( ).
NC
RXD
TXD
RTS
CTS
GND
DTR
DSR
1
2
3
7
8
5
4
6
1
3
12
6
14
TXD
RXD
RTS
CTS
GND
MS/DOS computer MP940
Clamp on hood
No
.
Signal
Name
Remarks
No
.
Signal
Name
Remarks
1 TX + Transmit data positive side 8 TX + Transmit data positive side
2 TX - Transmit data negative side 9 TX - Transmit data negative side
3 RX + Receive data positive side 10 RX + Receive data positive side
4 RX - Receive data negative side 11 TXR Transmit data terminating ressis-
tance
*2
5 12
6 RX - Receive data negative side 13 VCC Power supply (+5 V)
7 RXR Receive data terminating resis-
tance
*1
14 GND Signal ground
PORT2
Ω
–
Ω
–