[App_rpt-users] More than 4 nodes on a PC

[Cole Cunningham]

Keith,

 

Your setup looks exactly like the test rig I am using except I have four of
the C-Media fobs.  And yes, I discovered you need no more than two fobs per
USB bus.  With two busses available in the PC that limits it to four fobs.
The goal is eight nodes per server.

 

I've looked at USB 2.0 port cards and they seem to be going out of
production.  That is a concern for long term availability because we will be
making the change over a period of several years.  And a lot of them are PCI
interface instead of the current PCIe used in newer motherboards.

 

We're hoping to make Asterisk Allstar the replacement for the RLC-3's.

 

I wonder if anybody has gotten Asterisk/app_rpt running on a distro that
supports USB 3.0?

 

Cole, AA7RD

Phoenix, AZ

www.w7ara.org

 

 

From: Keith Goobie [mailto:keith at goobie.org] 
Sent: Tuesday, January 20, 2015 1:47 PM
To: Cole Cunningham; app_rpt-users at ohnosec.org
Subject: Re: [App_rpt-users] More than 4 nodes on a PC

 

We have an asterisk node that runs three USB URI devices and it works well.
Getting there was an education.  We found that we needed to spread out our
USB devices amongst as many Bus' as you can.  Loading down a single bus will
create breaks in the sound.  If you want things to work better add USB 2.0
sound cards to increase the USB bus count.  Use the lsusb command to see how
things are placed.  Below is our layout.

As you found out, ACID is based on Centos 5.x which does not work with USB
3.0.  

We still use a blend of RLC-DSP404's and Allstar.  If you are making the
move to a PC-Linux solution, I suggest investment in SSD, UPS for AC, and a
remotely controlled AC/DC power switch to control the computer.  

Thinking along the lines of your BBB solution, you could probably do things
with two PC-Linux servers.

Cheers
Keith VA3YC



[root at allstar ~]# lsusb
Bus 002 Device 001: ID 0000:0000  
Bus 002 Device 003: ID 0d8c:013a C-Media Electronics, Inc. 
Bus 002 Device 002: ID 0d8c:013a C-Media Electronics, Inc. 
Bus 001 Device 001: ID 0000:0000  
Bus 003 Device 001: ID 0000:0000  
Bus 003 Device 002: ID 0d8c:013a C-Media Electronics, Inc. 
Bus 003 Device 003: ID 04b3:4001 IBM Corp. 




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