PXI

cancel
Showing results for 
Search instead for 
Did you mean: 

mxi-4 pinout

Where can I find pinout for MXI-4?

0 Kudos
Message 1 of 8
(4,035 Views)

Hi, Transport,

 

here you are the pinout:

 

Pin 1 on PXI side: Tx+ -> pin 5 on other side.
Pin 6 on PXI side: Tx- -> pin 9 on other side.
Pin 5 on PXI side: Rx+ -> pin 1 on other side.
Pin 9 on PXI side: Rx- -> pin 6 on other side.

The MXI-4 link has a DB9 connector which has only four pins populated.

 

Saludos!

 

Jesús

Message 2 of 8
(4,008 Views)

Hola Jesús,

 

Do you happen to know the impedance of the cable used for MXI-4 connections?

 

Muchos gracias,

Alex

 

0 Kudos
Message 3 of 8
(1,511 Views)

The short answer is 150 ohms.  It was discussed a little here:

https://forums.ni.com/t5/PXI/Custom-cabling-for-MXI-4/td-p/4025802?profile.language=en

Message 4 of 8
(1,507 Views)

Hello Robert,

 

It looks like the specification is very similar to these Fibre Channel cables made by Amphenol:

 

https://cablesondemand.com/product/CS-FCDB9X2MM0/URvars/Items/Library/InfoManage/CS-FCDB9X2MM0.htm

 

Thank you for your help,

 

Best regards,

Alex

0 Kudos
Message 5 of 8
(1,499 Views)

Hello Alex and Robert,

 

Are there any products out there that are a 1-1 replacement for these MX-4 cables ?

 

I've bought one that looks right but if there's a direct replacement I'll get one of those instead.

 

These cards seem to be easy to get secondhand but the cables are a rarity.

 

Cheers

 

Jamie

0 Kudos
Message 6 of 8
(451 Views)

Hello Jamie,

 

I did some research way back when and found that the cable is derived (or equivalent to) a Male to Male 9-way Fibre Channel cable.

 

The important thing is the cable itself, rather than the connectors. The cable is Madison Cable Corp TurboQuad Gold.

 

I was able to buy a cable from a company here in the UK:

 

G. Underwood Ltd

13 Main Street 

Keyworth

Nottingham

NG12 5AA

+44 (0)115 937 6706

sales@underwood.co.uk

 

The person I dealt with, Geoff, had a "Fibre Channel 9 way Male to HSSDC 3m Cable" which they then swapped the HSSDC for a 9 way Male.

 

You could probably also source such a cable through ebay with carful search terms. Alternatively, you could buy a HSSDC cable and replace the connectors with 9-way males.

 

Note that unfortunately I think some pins were swapped on the supplied cable, but this was easy enough to correct.

 

Best regards,

Alex

 

 

Message 7 of 8
(437 Views)

Hi Alex,

 

Thanks for your prompt reply! I did find a old fibre channel cable with DB9 male connectors on each end that seems to match the pinout on one of the earlier posts. Its on the way to me via ebay so I'll keep you posted on whether it works. I think the cable might the the same turboquad or equivalent. Fingers crossed!

 

Cheers

 

Jamie 

0 Kudos
Message 8 of 8
(421 Views)