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Rev 1.7 • 18 Aug 10
3. Detail
Port Cards
This is the RJ-45 to DE9 mapping for RS-422:
This cable wiring is applicable whether the port is a controlling port or controlled port.
S
Older breakout panels might have incorrect wiring. Contact Miranda if your breakout panel
does not function correctly.
RS-232 Cables
If you make your own RS-232 cables, follow this pattern:
This cable wiring is applicable whether the port is DTE or DCE.
General Notes
Any DE9-to-DE9 cables you might use will be straight-through.
Port Cards
The NV5256 has slots for 16 port I/O cards. Each card supports 16 inputs from its corresponding
backplane. There are two types of port cards:
• The EM0503-01 module, supporting RS-422/485.
• The EM0503-50 module, supporting RS-232.
Other than this distinction, the cards are functionally identical. You can install any port card in any
slot that is useful to your system design.
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The NV5128 frame and its I/O cards are nearly identical in appearance to the NV5256 frame
and its I/O cards. Therefore, the NV5256 cards and slots are keyed so that you cannot success-
fully insert an NV5128 card into the NV5256 frame.
1
2
3
4
5
6
7
8
9
RJ-45
DE9
1
2
3
4
5
6
7
8
to NV5256 backplane
to your device
1
2
3
4
5
6
7
8
9
RJ-45
DE9
1
2
3
4
5
6
7
8
to NV5256 backplane
to your device
