Are the N2276A and N2276B multiplexers compatible with the 3499B mainframe?
The N2276A and N2276B are not compatible with the 3499B. The 3499B is a two-slot controller. The N2276A and N2276B require three slots.
When using the N2276A or N2276B utilize either the 3499A (5 slot) or 3499C (9/14) slot mainframes.