The PT2003-A1 is internally pre-installed.

Unscrew the front of the PT2003-A1 to reach the installation area.

The PT2003-A1 offers a convenient connection via a copper Ethernet cable (CAT5) to PTO2008-A1, PN1002-A1 or PN2009-A1. This cable is used to connect the 24 V, the 'PACE-Bus' (RS485), the analog audio input and the analog audio output.

In the system cabinet PTO2008-A1, PN1002-A1 or PN2009-A1 is used to route all required signals to a copper Ethernet cable (CAT5). See Call station interface (RS485) PTO2008-A1, Mount and install PN1002-A1 and RS485 module (1 port, DIN rail) PN2009-A1.

Only one PT2003-A1 is allowed to be connected to one PTO2008-A1, PN1002-A1 or one PN2009-A1.

PT2003-A1 cannot be connected to one digital audio matrix together with PT2008-A1 or PT2009-A1.