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i-dig02 

Page 2 

Introduction 

The i-dig02 module is designed to fit on the i-on40 control unit. The 
i-dig02 allows the control unit to report alarm conditions over the 
public switched telephone network (PSTN) using standard ARC 
protocols such as Fast Format, SIA I, -II, –III, or extended SIA, 

Contact ID, or SMS (Short Message Service) texts to mobile 
telephones by way of the PSTN. In addition the i-dig02 allows 
Downloader software to communicate with and monitor the control 

unit. 
Figure 1 shows the main features of the module. 

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1

2

 

1. Pins for ADSL filter 

2. Telephone line connector 

3. Off-hook LED 

 

Figure 1. i-dig02 Module 

Installation 

Safety Notice 

Figure 2 identifies connectors for Safety Extra-Low Voltage (SELV) 

and Telecommunications Network Voltage (TNV) circuits on the 
control unit's main PCB. These terms are used in accordance with 
the definitions in Safety Standard EN60 950. 
The Installer must ensure that TNV terminals are connected only to 

other circuits designated as TNV circuits (for example, the PTSN) 

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