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C.3. Alarm Port
The Alarm Port located on the unit’s back panel is designed for connection to a user-supplied
alarm device. When a Toll Fraud alarm is generated, the PollCat III will activate the Alarm
Port. Figure C.4 and the table below describe the Alarm Port interface.
Pin Signal
1 Do Not Connect
2 Not Connected
3 Signal Ground
4 Signal Ground
5 Do Not Connect
6 - Alarm Signal (open collector output)
Apx-16
PollCat III - Pollable Call Accounting Terminal, User's Guide Appendices
Figure C.4: Alarm Port Interface
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