Pinout - Rs232 Connector - Honeywell MX7 Reference Manual

Pinout - RS232 Connector

Note: Tethered scanners must be connected to powered cradles.
The connector is industry-standard RS232 and is a PC/AT standard 9-pin D male connector.
Note: Pin 9 of this port is connected to +5 VDC. Only approved cables are to be used for communication between the cradle
and external devices.
Pin Signal Description
1 DCD Data Carrier Detect
2 RXD Received Data – Input
3 TXD Transmitted Data – Output
4 DTR Data Terminal Ready
5 GND Signal/Power Ground
6 DSR Data Set Ready
7 RTS Request to Send
8 CTS Clear To Send
9 RI or Power +5 VDC sourced by the Cradle
2-11