5−4 Electric Drives
and Controls
Bosch Rexroth AG RhoMotion 1070072365 / 04
Interface Ports & Connectors
GND Signal Ground
DSR Data Set Ready; receiving line, on which the con-
nected peripheral device informs the rho4.0 that it is
switched on and initialized.
RTS Request to Send; receiving line, on which the con-
nected peripheral device informs the rho4.0 that it
wishes to send data.
CTS Clear to Send; transmitting line, on which the rho4.0
informs the connected peripheral device that it wis-
hes to send data..
RI Ring Indicator; receiving line, on which a connected
modem informs the rho4 that there is a call.
Shield Via metallic housing of the D-Sub-plug connection
contact to the housing frame.
For detailed information on pin assignment, see page 5−3.
V24_3/X33 Serial interfaces V24/20 mA, freely available
Switching over to 20 mA through a bridge in the connection from pin 2 to
pin 4.
D-Sub connector, 9-pin
Type: RS232/20 mA
Length of line: maximal 15 m
Type of line: shielded, cross section min. 0.14 mm
2
Rate of transmission max. 19,2 kBaud
Handshake: none
to the
peripheral
equipment
1
2
3
RXD
TXD
4
X33
Shield via metallic housing of the
plug connection
5
GND
6
7
8
9
TXD 20 mA
DTR
DSR
RTS/RXD 20 mA
free
20 mA
DTR 20 mA
1
5
69
RXD
TXD
GND
free
DTR
free
RTS
free
V24
free