Psion Teklogix 7525M Manuel d'utilisateur Page 58

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Chapter 5: External Connectors
Cables For the Tether Connector
48 Psion Teklogix WORKABOUT PRO HDK User Manual
5.4.2.1 Sensing Device Presence
For device identification, in the connected cable, one of the following pull-down resistors must be
connected between TETHER_DETECT (pin 7) and ground:
The Psion Teklogix Mobile Devices SDK enables a software application to detect and identify the
connected device.
5.4.3 Cables For the Tether Connector
Psion Teklogix provides cables that connect to the tether port of the WORKABOUT PRO. For a
complete list see www.PsionTeklogix.com/Accessories
.
These cables include the following:
Tether to RS-232-C cable for the WORKABOUT PRO 2nd. Generation.
Tether to USB-B for the WORKABOUT PRO 2nd. Generation.
Tether to USB-A for all WORKABOUT PRO variants.
5.5 The WORKABOUT PRO C, S, M, ME Audio Connector
The audio connector is only available on the WORKABOUT PRO C, S, M, and ME. It is not
available on the WORKABOUT PRO 2nd. Generation computers.
The audio connector has the following pinout:
The audio connector accepts a standard 2.5 mm stereo minijack.
Figure 5.5 Audio Plug
Pull-down Resistor Device
200 kΩ USB client.
100 kΩ USB host.
49.9 kΩ USB serial.
Table 5.3 Pinout Of The Audio Connector
Pin Signal Name Description
1 SP+R Right speaker positive.
2 MIC+ Microphone positive.
3 SP+L Left speaker positive.
4 GND Ground.
GND SP+L MIC+ SP+L
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