The Pstn Modem (Digi-1200) - Pyronix PCX 46 APP Installation & Reference Manual

PCX 46 App Installation Reference
Connecting the modems to the control panel

8.1 The PSTN Modem (Digi-1200)

The PSTN DIGI-1200 card is a fast modem and enables communication via PSTN
line using Contact ID and SIA Level 1/ Level 3 as well as remote uploading/
downloading.
A = Telephone line output for connection to analogue PSTN telephone line
B = Telephone line output for connection to analogue PSTN telephone line
A-1 = Telephone line output for connection to internal telecom equipment
B-1 = Telephone line output for connection to internal telecom equipment
Before making these connections, all power must be disconnected from the system.
NOTE: The ground terminal should ALWAYS be connected to earth in order to
increase the effectiveness of the transient voltage protection on the unit.
IMPORTANT NOTE: POWER DOWN THE PCX 46 BEFORE DISCONNECTING THE
MODEM.
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