6 - 9
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.
The HomeBase/IntelliBase/Inte cannot be daisy-chained.
Connect the power supply to the charging/communication cradle. Plug the AC transformer into the Dolphin HomeBase/
IntelliBase/Inte 5 Volt DC power supply connector. The AC wall transformer provided can power only one HomeBase/
IntelliBase/Inte. HHP recommends that you leave the Dolphin HomeBase/IntelliBase/Inte 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/Inte switch settings.
HomeBase /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
Summary of Contents for Dolphin 7450
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