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The Relay Output can be set up for:
1. System alarm: In this case, power failure and network disconnected.
2. Event alarm: Digital inputs.
The current and power capacity of the relay output is a maximum
of 24 VDC @ 1A. You should be careful not to exceed this power
specification.
Before connecting the VPort to the DC/AC power inputs, make
sure the voltage from the DC power source is stable.
Wiring the Digital Inputs
The VPort D351 has two sets of digital inputs—DI 1 and DI 2. Each DI
consists of two contacts of the 6-pin terminal block connector on the VPort’s
top panel. Top and front views of one of the terminal block connectors are
shown here.
I
1
D 2
I
I
2
D 1
I
D 2
I
D 1
I
I
1
I
2
STEP 1:
Insert the negative
(ground)/positive DI wires into the
┴
/I1 terminals.
STEP 2:
To keep the DI wires from
pulling loose, use a small flat-blade
screwdriver to tighten the
wire-clamp screws on the front of
the terminal block connector.
STEP 3:
Insert the plastic terminal
block connector prongs into the
terminal block receptor, which is
located on the VPort D351’s top
panel.
The VPort D351’s DI 1 and DI 2 can also be used for controlling the selection
of the video source. Administrators can set up this function by checking the
Enable DI Change
checkbox under
System Configuration/ Video Source/
Video Source List
. The DI 1 can then do backward video source selection (e.g.,
from video source 2 to video source 1), and DI 2 can do forward video source
selection (e.g., from video source 1 to video source 2).
Communication Connections
10/100BaseT(X) Ethernet Port Connection
The 10/100BaseT(X) port located on the VPort D351’s front panel is used to
connect to Ethernet-enabled devices.
Below we show pinouts for both the MDI (NIC-type) port and MDI-X
(HUB/Switch-type) port, and we also show cable wiring diagrams for
straight-through and cross-over Ethernet cables.
