Black Box MT257A Marine RADAR User Manual


 
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APPENDIX: Block Diagram
Appendix: Block Diagram
Although the arrows in this diagram showing data flow
are bidirectional, and the Adapters and Balun Mate II do
support bidirectional data transfer, the direction of flow
on the transmit lines (coax TX, twisted-pair pins 1 and 2)
will always be opposite to the direction of flow on the
receive lines (coax RX, twisted-pair pins 4 and 5). Which
signal is input and which is output on either interface
will usually depend on the DTE/DCE configuration of
the attached devices.
JP1
JP2
Coax Transmit Shield
Coax
Twisted
Pair
Transmit
Shield on
RJ-45 Pin 3
Receive Shield on
RJ-45 Pin 6
Signal
Conversion
Shield on
RJ-45
Jack
Coax Receive Shield
Receive (RX)
Transmit (TX)
Transmit (TX)
Receive (RX)