Honeywell 9900LUP-6211G0 - Hand Held Products Dolphin 9900 User Manual page 130

RS-232 Pin Configuration
Base/Host Port (DCE)
Pin / Input Signal
2 / (RD)
3 / (TD)
5 / (SG)
4 / (DTR)
6 / (DSR)
7 / (RTS)
8 / (CTS)
Refer to this table if you want to make your own cables.
To do so, you must determine if your host RS-232 device is
• 9-pin or 25-pin and
• configured as a DCE or DTE device.
Serial Connector
The base connector is straight to the printed circuit board (PCB). The ninth pin sends 500mA at 5V power
out. This can power a peripheral device, such as a mobile printer, as long as that peripheral device can
accept 500mA at 5V.
Note: Signals referenced are for a DTE device.
12 - 8
IBM AT DB9 IBM XT DB25
(DTE) (DTE)
2
3
5
4
6
7
8
Pin # Description
1 Internal Jumper to Pin 6
2 TXD
3 RXD
4 DSR
5 GND
6 DTR
7 CTS
8 RTS
9 5 VOLT OUT
Modem DB25
(DCE)
3 2
2 3
7 7
20 6
6 20
4 5
5 4