Unitec Portal TI+, Руководство по установке

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P O R T A L T I +
Portal Installation Manual 28
Document #: PTL1001
Figure 22. Intercom Component Locations on the Display IO Board
3.8.4 Connection Overview
Call Function: A view of the diagram below shows J34 and J35. The unit will initiate a call
function by closing the contacts on RL5. By default, J34-Pin 1 (H1) and J34-Pin 2 (H2) will
always reflect the contact closure of RL5. This is the default for the four-wire mode when both
the call function and audio are completely separated. More detailed instructions on this follow.
Audio: When the Portal intercom mode is active, the audio section is floating and is not
relative to ground. By default, J34-Pin 3 (SP+) and J34-Pin 4 (SP-) will always be connected
to the audio section.
Four Wire Intercom Configuration: Two separate pairs (four wires) are used for both the
call function and audio in the four-wire configuration. In this mode, J35 receives no jumpers.
This is shown below.