Various a1200p boards in the same asterisk machine

Hello
I have two questions:
It is possible install two a1200p boards with 12 fxo modules each one in the same machine?
This works fine in asterisk?.

Thanks

Yes, you can install 4 pcs or even more A1200P in one pc, they will work fine with very low CPU load.

Is there a DSP chipset on the a1200p card? Can it handle the load balance with QoS when there are several cards installed on same server?

A1200P do not have dsp chipset,

for the QOS, the server ( in fact the OS) will handle it automaticlly,

our driver support use several cards on same server.

Best
MiaoLin.

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169: 549710 IO-APIC-level wctdm
177: 751381 IO-APIC-level eth0, wctdm
185: 548342 IO-APIC-level wctdm

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I installed three cards, one card is sharing same irq with lan card. Will it cause a problem when on voice quality when the card uses the same irq with other devices? If so, how to fix it?

you have 2 method to change the irq that used by the card:
1. set irq in bios, such feature just supported by certain m/b.
2. use another pci slot.

share irq with lan will not always cause issue , it depends on h/w and s/w.