Install the 2PGDU Card2- Install the 2PGDU Card! Observe anti-static precautions when handling the 2PGDU card.• Wear a suitable anti-static strap connected to an Earth point.The 2PGDU card is installed onto the base board within the Topaz main or expansion units.One 2PGDU card can be installed into each main/expansion unit.! When installing the 2PGDU card the installation order below shows the port assignment:Order of 2PGDUcard installed.Door PhonenumbersAudio PortnumbersFirst 1 & 2 1 & 2Second 3 & 4 3 & 4Third 5 & 6 5 & 6The port assignment is determined when the system is powered on, after the 2PGDU card is installed.1 Power off the Topaz system You must also power off each Topaz expansion unit if you have anyinstalled.2 Remove the sub cover andmain cover of the Topaz unitthat will have the 2PGDU cardinstalled.3 Set the door phone switch tothe correct mode.The 2PGDU is compatible withtwo types of door phone unit.The door phone unit used withthe Topaz is the 270Ω type.Set switch SW1 to the 270Ω setting.4 Fit the 2PGDU card Using the guides fit the 2PGDU card into the Topaz unit and pushfirmly onto the connector marked CN4.Lift offthemaincoverSet switch SW1 to270ΩRemove the sub coverLoosen the 2screws6 Topaz 2PGDU Guide