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USB Expansion Card for Dell R710 Server

Hello. I'm trying to plug in 4 of these:

http://www.888voip.com/products/sangoma-ut51-voicetime-usb-voice-synch-tool-internal-usb-header.html

Into a Dell R710 Server : http://www.dell.com/us/enterprise/p/poweredge-r710/pd

I'm using Linux.

When I plugin the timers to the provided USB ports in the front part of the server I'm only seeing one of the USB Sangoma Timers.

When I plug them into the back 2 USB ports, I can see both timers.

I believe the front ports are using a shared BUS.

Do you think if I purchase this card:

http://www.microcenter.com/single_product_results.phtml?product_id=0293127

All (4) USB UT51 Sangoma Timers will show up as separate devices in linux?

Let me know if you have any questions by responding below.

SysExpert

Hard to know for sure, but chances are it will support at least 2 of the Timers, that and the 2 in the back should suffice.

I hope this helps !

IanTh

why dont you use ntp instead

Matt Grofsky

ASKER

ntp isn't fast enough. I'm dealing with very precise timing on these cards.

IanTh

ntp presice enough is the ukl military use ntp on various projects I did a ntp test for them and it was nevere more than 2 seconds out
ntp is connected to a atomic clock

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Matt Grofsky

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Matt Grofsky

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