45
3.4.4 Using RS232 cable
CAUTION: The serial connector on the MintDrive (X7) supports two serial channels, one
RS232 and one RS485 / RS422. The serial cable with catalog number
CBL001-501 must NOT be used with the MintDrive as this may result in damage
to the unit. Please use serial cable CBL023-501 or see this section for wiring
details.
The MintDrive has a full -duplex RS232 serial port with the following default configuration:
H 57.6Kbaud
H 1startbit
H 8 data bits
H 1stopbit
H No parity
H Hardware handshaking lines (RS232) RTS and CTS must be connected
The MintDrive will transmit a line feed/carriage return (<LF><CR>) c ombination but only expects a
carriage return (<CR>) from the host terminal. The RS232 connections are brought out onto a 9-pin
male D-type connector (an identical pin configuration as a standard male 9-pin D -type connector, but
RS485 / RS422 signals are also taken to the unused pins). The RS232 port is configured as a DTE
(Data Terminal Equipment) unit so it is possible to operate the MintDrive with any DCE (Data
Communications Equipment) or DTE equipment. Both the output and input circuitry are single ended
and operate between ±12V. The port is capable of operation at up to 57.6Kbaud.
MintDrive
(DCE)
Computer
COM Port
(DTE)
X7
RXD 2
TXD 3
GND 5
2RXD
3TXD
5GND
RTS 7
CTS 8
7RTS
8CTS
COM
Connector
backshell
Connector
backshell
Figure 23 - RS232 serial port connections
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