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7. TD100 Power Supply Units
The TD100 processor is powered through the attached lead-in cables and respective sensor
cables, as explained in the earlier chapters. Because this system topology is flexible with where
the power supply is located, the TD24PSU or TD48PSU can be installed at or away from the
perimeter and TD100 processors.
When redundant (backup) power supplies and/or batteries are not used, a loss of AC will result
in a loss of output voltage.
WARNING: Take precautions when working with AC/DC power. Only qualified
technicians trained in electrical circuits and fundamentals should install the TD24PSU
and TD48PSU. All wiring should be done with AC power OFF.
TD24PSU
The TD24PSU combines three main pieces to deliver power to the sensor cable and attached
TD100 processors. These three pieces are an AC to AC transformer, AC to DC linear power
supply (LPS5), and fused DC power distribution board (DP4). The TD24PSU can power up to
three TD100 processors.
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Figure 67. AC transformer
Figure 68. Linear Power Supply (LPS5)
Confidential – Limited Distribution
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