Rs232 pin configuration, E unit to a host device via rs232; see, Serial – Honeywell DOLPHIN 9700 User Manual
Page 124: Connector, Serial connector
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RS232 Pin Configuration
Refer to this table if you want to make your own cables.
To do so, you must determine if your host RS232 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.
Base/Host Port (DCE)
IBM AT DB9
(DTE)
IBM XT DB25
(DTE)
Modem DB25
(DCE)
Pin / Input Signal
2 / (RD)
2
3
2
3 / (TD)
3
2
3
5 / (SG)
5
7
7
4 / (DTR)
4
20
6
6 / (DSR)
6
6
20
7 / (RTS)
7
4
5
8 / (CTS)
8
5
4
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
5 4
3
2 1
9
8
7
6