Dolphin Peripherals 9500 Setting the Mobile Base Up for Communications, Connecting the Cables

Setting the Mobile Base Up for Communications

The Mobile Base RS-232 interface allows the Dolphin terminal to communicate to a personal computer, modem, or any standard RS-232 device using a standard serial cable and communications software.

Connecting the Cables

Connect the Mobile Base to the host computer or other device by plugging an RS-232 serial cable into the RS-232 Communications Port on the bottom of the Mobile Base. Plug the other end of the RS-232 serial cable into the correct port on the host RS-232 device.

The wiring of your cable depends on whether the other device is set up as a Data Communications Equipment (DCE) or Data Terminal Equipment (DTE) device.

The Mobile Base 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.

RS-232 Pin Configuration

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

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.

Dolphin® 9500 Series User’s Guide Rev C 13 - 7