| AIM MIL-STD-1553 Modules | Bus Controller (BC) | Multiple Remote Terminal (MRT) | Mailbox Monitor (MM) | Chronological Monitor (CM) | Comments |
| Full Function | X | X | X | X | Concurrent Operation |
| Simulator Only | X | X | X | — | Concurrent Operation |
| Single Function | X | X | X | X | Or function Only: CM/MM or BC & CM/MM or MRT & CM/MM Modes |
Full Function: BC, Multi RT Simulator with Mailbox and Chronological Monitor
> Example APE1553-1
Simulator Only: BC, Multi RT Simulator with Mailbox Monitor (please add S to the Part Number)
> Examples APE1553S-1, APE1553S-2
Single Function: Chronological and Mailbox Monitor or BC and Chronological and Mailbox Monitor or Multi-RT and Chronological and Mailbox Monitor (please add M to the Part Number)
> Examples APE1553M-1, APE1553M-2