Telex Audiocom ES4000A User Instructions page 11

Intercom expansion station
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Mounting Configurations
Typical Rack Mount Configuration for a 10 Channel Master Speaker Station with Minimum Power
FIGURE 4.
Supply Configuration. The SPS-2000A provides power for channels 1 and 2, and also provides the listening speaker for
all 10 channels. A microphone must be connected to the US2000A for talk on the 10 channels. Each PS4000 provides
power for 4 intercom channels and also interfaces with an ES4000A to the intercom channels. The XP-USPG interfaces
2 external program inputs to the US2000A, and also interfaces the US2000A to an external PA system. Each XP-4PGM
interfaces 4 external program sources to an ES4000A. Connections and further details for this configuration are shown in
Figure 6. NOTE: An additional rack mount space is shown between the two PS4000 power supplies. This may be
required to prevent power supply overheating when the ambient air temperature is high.
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