Power and Peripheral Device Connections
Also refer to “Electrical Considerations” starting on page 5 for complete infor- mation and wiring diagrams detailing power connection.
For
Battery Charging
The PMD provides battery charging for the Pegaso PDA when powered.
The Pegaso will charge its installed battery when power is applied to the Powered Mobile Dock.
COM Port Connection
The PMD includes a powered DTE serial port connection to allow the Pegaso PDA to communicate with peripherals, such as a handheld scanner or a porta- ble printer. +5v is available on pin 9 of the port connector for power to a peripheral.
Some peripherals may not follow all of the specifications for
Table 2. COM port DB9M Pinouts
Pin No. | Signal |
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
1 | DCD |
|
|
|
|
|
| |
|
|
|
|
|
| |||
2 | RXD |
|
|
|
|
| ||
3 | TXD |
|
| Tied |
| |||
4 | DTR |
|
|
| ||||
|
|
|
|
| ||||
5 | GND |
|
|
|
|
| ||
6 | DSR |
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
7 | RTS |
|
|
|
|
| ||
8 | CTS |
|
|
|
|
| ||
9 | +5 @ 500Ma |
|
|
|
|
|
18 | Pegaso™ Powered Mobile Dock |