Telex Audiocom US-2002, User Instructions

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The configuration, shown in Figure 13, shows all the components are locally powered using PA-KP local power supplies.
Note, the use of one (1) termination plug in each intercom channel. (One (1) termination plug is supplied with each US-2002.)
Only one (1) termination plug should be installed per channel. Typically, they are installed at the first intercom station in the
chain. If 2 terminations are installed in a channel, the sound quality and volume level is noticeably reduced. The advantage of
locally powered stations is that they can be operated over a greater distance than is possible when using a system power
supply.
IMPORTANT: If a system power supply (SPS2001, PS2001L, etc.) is ever connected anywhere in a channel, the
termination plug should be removed from that channel, because the system power supply already has a
built-in termination.
NOTE: For further information about cables, see Figure 15 on page 26
FIGURE 13.
An example of all locally powered US-2002 intercom stations.