User Manual N11
Connectors and interfaces
Industrial PC
3085-US-2.4 www.noax.com Page 57 of 120
9.14.2 Power supply for RS232 devices
The RS232 interface module provides the
option of supplying power to external
devices via the connector pins:
D Pin 9 (RI) and/or Pin 4 (DTR)
D 5 V +/‐5% or 12 V +/‐5% output
voltage
The setting is adjusted via the Jumper J3
Default factory setting:
(if no other labeling)
D Pin 4 = DTR
D Pin 9 = RI
Fig. 47: Jumper on the interface module
Fig. 48: RS232 interface module bottom side with setting label (visible side)
Interfaces that have been pre‐adjusted at the factory are labeled accordingly in the
connector area and on the module directly using stickers.
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