Psion Teklogix netpad Bedienungsanleitung PDF herunterladen (Seite 72)

Chapter 3: Docking Station And Serial Port

Pins And Connections

Psion Teklogix netpad Windows CE .NET 4.2 User Manual

3.2.2 Pins And Connections

Note: Pins 6 and 10 can carry power to peripherals, but are only powered on

newer netpad models. RS-232 ports that can carry power are standard on

all netpad models, and can be identified by their orange plastic casing.

The powered serial port allows you to connect to various peripherals

such as an RFID reader, Bluetooth module, or a tethered imager.

The equivalent pins on the docking station have no power.

The current standard null modem cable for netpad is P/N A2203 0004 0001. It has a

grey sleeve, with the part number printed on the cable.

In both directions, DTR at one end is connected to both DCD and DSR at the other.

To assist in creating cables to interface with other devices, the current serial cables

contain a wire to each pin of the netpad, running the full length of the cable. The

wires to pins 4 and 9 are only joined in the 9-way plug—they will be separate data

lines if the 9-way pin is cut off.

Note: An older (black-sleeved) null modem cable is not intended for modifica-

tion, and does not have full-length wires to each pin on the 10-way plug.

netpad Pin netpad Function 9-way D Pin 9-way D Function Wire Colour

1 TXD 2 RXD black

2 RTS 8 CTS brown

3 Ground 5 Ground red

4DSR4 DTR orange

5 CTS 7 RTS yellow

6 3.3 volts not connected green

7 DTR 1 and 6 DCD, DSR blue

8 RXD 3 TXD purple

9DCD4 DTR grey

10 7.2 volts not connected white

not connected shell drain wire

Table 3.2 Standard Null Modem Cable

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 229 230

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Psion Teklogix netpad Bedienungsanleitung Seite 72