www.baldormotion.com
4-18 Input / Output
MN1928
NextMove ES
(DCE)
9--pin
Computer
COM Port
(DCE / DTE)
Serial
RXD 2
TXD 3
GND 5
2 RXD
3 TXD
5 GND
RTS 7
CTS 8
7 RTS
8 CTS
COM
Connect overall
shield to connector
backshell.
Figure 15 - RS232 serial port connections
The RS232 port is configured as a DCE (Data Communications Equipment) unit so it is
possible to operate the controller with any DCE or DTE (Data Terminal Equipment). Full duplex
transmission with hardware handshaking is supported. Only the TXD, RXD and 0V GND
connections are required for communication, but since many devices will check the RTS and
CTS lines, these must also be connected. Pins 4 and 6 are linked on the NextMove ES.
The maximum recommended cable length is 3 m (10 ft) at 57.6 Kbaud. When using lower
baud rates, longer cable lengths may be used up to maximum of 15 m (49 ft) at 9600 baud. A
suitable cable is available from Baldor, catalog number CBL001-501.
Servo Systems Co. • 115 Main Road • P.O. Box 97 • Montville, NJ,
07045-0097 • (973) 335-1007 • Toll Free: (800) 922-1103
Fax: (973) 335-1661 • www.servosystems.com