HEIDENHAIN POSITIP 880 User Manual page 132

Wiring the connecting cable
The wiring of the connecting cable depends on the device being
connected (see technical documentation for external device).
Full wiring
Before the POSITIP 880 and your PC can communicate, they need to
be connected to each other with a serial cable. See Fig. II.23 & Fig.
II.24.
Pin assignment
Pin Assignment
1 No assignment
3 TXD
2 RXD
7 RTS
8 CTS
6 DSR
5 SIGNAL GND
4 DTR
9 No assignment
Signal
Signal Signal level
"1"= "active"
TXD, RXD -3 V to -15 V
RTS, CTS + 3 V to + 15 V
DSR, DTR
132
- Transmitted data
- Received data
- Request to send
- Clear to send
- Data set ready
- Signal ground
- Data terminal ready
Signal level
"0"= "inactive"
+ 3 V to + 15 V
-3 V to -15 V
Fig. II.23 Pin connection for serial port with
handshaking
Fig. II.24 Pin connection for Serial Port without
handshaking
II Technical Information