Measurement Computing E-PDISO16 - Manual (Page 19)

E-PDISO16 User's Guide Functional Details
Digital I/O Techniques
For more information about digital I/O techniques, refer to the Guide to Signal Connections. This document is
available on our web site at
www.mccdaq.com/signals/ .
Power limitations using multiple E-PDISO16 modules
The maximum output current of the supplied CB-PWR-9V3A power supply is 3 A. When running at full load
(all relays on and the Ethernet is active), the E-PDISO16 draws 1.7 A from the supply. If you daisy chain
additional Measurement Computing products to the E-PDISO16, make sure you provide adequate power to
each module that you connect.
A drop in voltage occurs with each module connected in a daisy chain system. The voltage drop between the
external power supply and the daisy chain output is 0.5 V max. Factor in this voltage drop when you configure a
daisy chain system to ensure that at least 6.0 VDC is provided to the last module in the chain.
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