Albalá Ingenieros PDC3002C01, Руководство пользователя

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Albalá Ingenieros | Manual PDC3002C01
BNC connectors used on cables must be suitable for the high frequencies of digital
video signals: it is strongly recommended to use high quality connectors from well
known manufacturers.
All coaxial cable used must be Belden 8281 or similar. This type provides the greatest
lengths because it is used to calculate the equalizers in the PDC3002C01. Cables
carrying signal between the module and the devices should use single piece
construction, avoiding spliced sections with double BNC female or barrel connectors.
If it is necessary to split the cable into two sections the same type of wire should be
used in both sections.
The use of analog video coaxial cables RG-59 type or similar is not recommended for
digital video except for very short distances.
3.6.2. Analog video connections
The analog video inputs use two BNC connectors configured in loop-through.
For analog video connections a coaxial cable with 75Ω of characteristic impedance
must be used.
3.6.3. GPIO connections
The GPIOs use 3.81mm pitch terminal block connectors and have the following
equivalent circuit:
Consult the maximum values listed in the specifications section of this manual before
making any connections to the GPIOs. Never connect hazardous voltages to the GPIO
inputs.
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