MobileView 3008, Installation Manual

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Chapter 3: DVR installation
44 MobileView 3012 Series Installation Manual
J3 digital input channel connections
The MobileView 3012 provides eight digital inputs on the ten-terminal Phoenix
connector labeled J3. Connection of specific terminals to optional hardware
devices is detailed in Chapter 5
“Optional hardware installation” on page 85.
The J3 connector uses retaining screws to ensure that it does not disconnect
during operation. By design, the connector is easily removed if the retaining
screws are fully disengaged and a slight force perpendicular to the connector is
applied. Ensure that the retaining screws are fully engaged or unwanted
disconnection may occur.
Digital inputs
Each open collector digital input treats an input voltage between 5 to 30 VDC
with respect to digital ground as activated or closed. Inputs less than 1 VDC are
treated as deactivated or open. Voltages between 1 to 4 VDC have no guarantee
of being seen as activated or deactivated.
Refer to Chapter 5
“Optional hardware installation” on page 85 for more
information on connecting digital inputs to peripheral devices.
J3 harness connections
The J3 harness couples an 18-pin Molex type connector to the J3 connector (see
Figure 42 below). This arrangement provides dedicated termination points for
each digital input, two digital ground, and eight 12 VDC (+) outputs. Common and
specific usage of each termination point is provided in Table 3.
Figure 42: J3 harness, digital input connection