Hand Held Products Dolphin 7450, Dolphin 7400 manual IBM AT DB9 IBM XT

The HomeBase/IntelliBase Communication Port is configured as a DCE device. To communicate with a DTE device such as a computer, use a standard (or straight-through) RS-232 cable. To communicate with a DCE device, use either a null modem adapter in line with a standard RS-232 cable, or a null-modem serial cable.

You can make your own cables by following the pin configuration in the chart below. To do so, you must determine if your host RS-232 device is 9-pin or 25-pin, and whether it is configured as a DCE or DTE device.

HomeBase /Host		IBM AT DB9	IBM XT	Modem DB25
Port (DCE)		(DTE)	DB25 (DTE)	(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

The HomeBase/IntelliBase/IntelliBase+ cannot be daisy-chained.

Connect the power supply to the charging/communication cradle. Plug the AC transformer into the Dolphin HomeBase/ IntelliBase/IntelliBase+ 5 Volt DC power supply connector. The AC wall transformer provided can power only one HomeBase/ IntelliBase/IntelliBase+. HHP recommends that you leave the Dolphin HomeBase/IntelliBase/IntelliBase+ connected to its power source at all times, so that it is always ready to use.

Set the baud rate switch to the communication mode you are going to use. Refer to Table 2 for HomeBase switch settings or Table 3 for IntelliBase/IntelliBase+ switch settings.

6 - 9