Honeywell International Inc. 7850LPE Manuale Utente

Connect the Dolphin HomeBase to the host computer or other device by plugging an RS-232 serial cable into the 

(see page 8-3) on the back panel. The wiring of your cable depends on whether the other device is set up as a Data 
Communication Equipment (DCE) or Data Terminal Equipment (DTE) device. 

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

Note: The Dolphin HomeBase cannot be daisy-chained.

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