2-4 5100 ES Series Portable Radio Service Manual
Battery, Accessory and Disassembly Information
Figure 2.3
Accessory Installation
2.3.1 Option Select Lines
Opt Sel 1 (pin 1) and Opt Sel 2 (pin 5) of the UDC (accessory) connector indicate to the
control logic when an accessory is connected and what accessory is installed. These lines
function as follows:
Opt Sel 1 and 2 High (3.3V) - This is the normal operating condition in which no
accessory is connected. Both lines are pulled high (3.3V) by internal pull-up resistors.
Opt Sel 1 Low - A speaker-microphone or some other accessory is connected. Opt Sel 2
then functions as an external PTT line (low = PTT), and the radio PTT switch is also
functional. The internal speaker and microphone are disabled.
Opt Sel 1 High, Opt Sel 2 Low - The encryption keyloader is connected.
Latch
Install Lock
Screw Here
Accessory Connector
Hook
Содержание 5100 ES
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Страница 38: ...3 2 5100 ES Series Portable Radio Service Manual January 2007 Operation ...
Страница 70: ...6 2 5100 ES Series Portable Radio Service Manual January 2007 Alignment Procedure ...
Страница 74: ...7 4 5100 ES Series Portable Radio Service Manual January 2007 Troubleshooting ...
Страница 125: ...January 2007 5100 ES Series Portable Radio Service Manual 9 47 Parts List Figure 9 4 Front Housing Assembly Model III ...
Страница 126: ...January 2007 5100 ES Series Portable Radio Service Manual 9 48 Parts List Figure 9 5 Front Housing Assembly Model II ...
Страница 127: ...January 2007 5100 ES Series Portable Radio Service Manual 9 49 Parts List Figure 9 6 Front Housing Assembly Model I ...
Страница 132: ...January 2007 5100 ES Series Portable Radio Service Manual 9 54 Parts List Figure 9 11 Front Cover Assembly Model II III ...
Страница 133: ...January 2007 5100 ES Series Portable Radio Service Manual 9 55 Parts List Figure 9 12 Front Cover Assembly Model I ...
Страница 134: ...January 2007 5100 ES Series Portable Radio Service Manual 9 56 Parts List Figure 9 13 Front Cover Assembly Detail ...
Страница 180: ...10 46 5100 ES Series Portable Radio Service Manual January 2007 Schematic Diagrams and Component Layouts ...