[Asterisk-Users] Channel bank of E1s? (one E1 input --> 2 x E1 output)

[ht at phonitel.com]

Hi,

Assume I have one E1 digium card to which I want to plug two distinct E1 PABXs ,
one with 15 channels and the other with 15 channels;

Is there a sort of E1 multiplexer devise that allows me to plug in one hand the
E1 port of the Digium card and on the other hand the two PABXs? In this same
devise, I should be able to say that 15 channels need to go to first Interface
and 15 other channels need to go to other interface.

Or is it necessary to acquire a another E1 card although I don't need to process
more channels (30 channels are ok).

Any help is greatly appreciated.