Psion Teklogix 7525M Manuel d'utilisateur Page 93

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Chapter 8: Scanner Connector
Scanner Connector Location
Psion Teklogix WORKABOUT PRO HDK User Manual 83
8.3 Scanner Connector Location
For the location of the scanner connector on the main logic board see “Connector Locations” on
page 17.
8.4 Scanner Connector Pinout
Table 8.1 Pinout Of The Scanner Connector
Pin Name Description Direction
State
When
Active
State
During
Sleep
Pull-up Or
Pull-down
1 V+5_BAR +5 V bar code
supply.
Switchable.
3
Power N/A Disabled N/A
2 V+5_BAR +5 V bar code
supply.
Switchable.
3
Power N/A Disabled N/A
3IR_TXD
1
BAR_TXD
2
Data from WORK-
ABOUT PRO to
scanner device.
Output B Low None
4 USB_H2_D- USB host port 2 D-. Input/
output
B Pulled
down
15 kΩ
5 IR_RXD
1
BAR_RXD
2
Data from scanner
device to WORKA-
BOUT PRO.
Input B Pulled up 100 kΩ
1
None
2
6 USB_H2_D+ USB host port 2 D+. Input/
output
B Pulled
down
15 kΩ
7 nBAR_CTS
1
BAR_CTS
2
CTS from scanner
device to WORKA-
BOUT PRO.
Input L Pulled up 100 kΩ
1
10 kΩ
2
8 GND Ground. Power N/A N/A N/A
9nBAR_RTS
1
BAR_RTS
2
RTS from WORK-
ABOUT PRO to
scanner device.
Output L Low N/.A
10 Not used
1
BAR_3.3V
2
Switchable.
2 3
Short circuit to
ground detection for
backward
compatibility.
2
N/A N/A N/A N/A
11 GND Ground. Power N/A N/A N/A
Abbreviations:
N/A= not applicable
A= according to design requirements of driver and scanner device
B = both high and low
L= active low
H= active high
Hi-Z = high impedance
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