Specifications

31007715 6/2008 367
4
Advantys
Power Distribution Modules
At a Glance
Overview The island bus uses special-purpose PDMs to distribute field power to the I/O
modules in its segment(s). There are two classes of PDMs, those that distribute:
z 24 VDC power to digital and analog I/O that operate with DC-powered field
devices
z 115 or 230 VAC to digital I/O modules that operate with AC-power field devices
All PDMs distribute sensor and actuator power, provide PE resistance for the I/O
modules they support and provide over-current protection. Within each class are
standard and basic PDM models.
What's
in this Chapter?
This chapter contains the following sections:
Section Topic Page
4.1 STB PDT 3100 24 VDC Power Distribution Module 368
4.2 STB PDT 3105 24 VDC Basic Power Distribution Module 380
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