PRA board documentation

[VaidasM]

Hi all,

I am looking for documentation for the old crystal hardware PRA board (not PRA2) - 3BA 53083, especially strappings. Does anyone has it? I have OXE documentation starting from R4.1 but PRA board in not included (only PRA2).

Thanks in advance!

[vad]

In documentation for R2 - absent PRA board, only PRA2.

[VaidasM]

Thanks for checking! Thing is that PRA2 strappings are different from PRA.

[vad]

I have old documentation (collection, works under WorldView SW). But I cannot check right now, I will check today evening and give your answer tomorrow - exist some information about PRA board strapping or not.

[vad]

strapping
X11 left - normal operation, another - test
X13, X14 left, X17, X16 up - 120 Ohms (twisted pair), another 75 Ohms (coaxial)
up to ICS 02 X36 left, as of ICS 03 X8 up - normal operation (another - use PDI for flash)

External connection:
C, A 2 - T2 transmission wire b and a, 120 Ohms
C, A 3 - T2 reception wire a and b, 120 Ohms
B 3, 4 - T2 transmission wire b and a, 75 Ohms
B 11, 12 - T2 reception wire a and b, 75 Ohms

[VaidasM]

Thank you very much!!! Just saved me from buying a new board:)