User`s manual

VPort 2141 Video Encoder User’s Manual Introduction
1-8
12: POWER IN 12 VDC
Connect the power jack of the included 12 VDC power adaptor. Connecting the power adaptor
should be the last step of installing the video encoder hardware. Administrators can feed an
external power source through pins 11 and 12 of the GPIO terminal block to replace the power
adaptor.
ATTENTION
The VPort 2141 video encoder’s power adaptor, and the external power supply (from pins 14 and
15 of the Terminal Block) cannot be used at the same time. Only one power source can be used
to feed power to the VPort 2141. Improper usage could result in serious damage to your video
encoder.
If DI1 is configured to “rising” status, so
that Relay 1 is driven to “high” status
(resulting in Relay1’s “Common” pin
shorting the “NO” pin), the light bulb
will light up when DI1’s signal will
change from 0V to 12V.