2 USB-UIRTs, 1 multi, 1 not

Hey,
I'm using BTV 3.5.1 with 2 ExpressVU sat boxes. Both my sensors have the 56 Mhz addon.
As I understand it with the multi zone USB_UIRT you need to plug in a splitter into the back of it and use 2 IR bugs.
My question is that what IR bugs are compatible with expressvu? Or do I even need to worry as the USB-UIRT already does that?
I find the documentation pretty limiting on how to setup a multi-zoned environment.
I know I need to modify the BTV .rmt files to add the Z1, Z2 stuff.
Ideally what I'd like is to be able to use both my USB-UIRT's with BTV (and I run Girder), but I don't know if that's possible.
Some light would be appreciated
Thanks!
Brad Atkins
I'm using BTV 3.5.1 with 2 ExpressVU sat boxes. Both my sensors have the 56 Mhz addon.
As I understand it with the multi zone USB_UIRT you need to plug in a splitter into the back of it and use 2 IR bugs.
My question is that what IR bugs are compatible with expressvu? Or do I even need to worry as the USB-UIRT already does that?
I find the documentation pretty limiting on how to setup a multi-zoned environment.
I know I need to modify the BTV .rmt files to add the Z1, Z2 stuff.
Ideally what I'd like is to be able to use both my USB-UIRT's with BTV (and I run Girder), but I don't know if that's possible.
Some light would be appreciated

Thanks!
Brad Atkins