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13 - 4 Rev D Dolphin® 7900 Series User’s Guide
RS-232 Serial Connector
The following diagram displays the pins of the RS-232 serial connector of the Back Panel (see page 13-3).
Note: Signals referenced are for a DTE device. The HomeBase is at a right-angle to the printed circuit board (PCB). The ninth
pin has a ring indicator (RI).
Powering the Dolphin HomeBase
The terminal requires 9.5 volts DC input for communications and battery charging; the power adapter on the power cable converts
the voltage from the power source to 9.5 volts DC. Only power adapter cables from Hand Held Products converts the voltage
appropriately.
We recommend that you leave the Dolphin HomeBase connected to its power source at all times, so that it is always ready to use.
1. Connect the power cable to the DC jack on the rear panel of the HomeBase.
2. Connect the power cable to the power adapter.
3. Plug the power adapter into the power source.
4. The HomeBase is now powered. When a terminal is inserted into the terminal well, the HomeBase powers the terminal,
charges the terminal’s main battery pack, and launches ActiveSync communications (if applicable.)
Pi n # Description
1 Interna l Jumpe r to Pi n 6
2TXD
3RXD
4DSR
5GND
6DTR
7CTS
8RTS
9RI