Product Overview
The Speco A2M is an expansion board for the A2E4 and A2E4P access controllers, taking either from two doors up to four. It adds two readers (in/out), two relays (lock/aux) and three global inputs (REX, DPS, Aux). It is ETL-listed in accordance with the UL-294 standard for Access Control System Units and carries a 5-year warranty.
Key Configuration
Model: A2M | Configuration: Expansion board for A2E4 / A2E4P | Capacity: Expands the host controller to 4 doors | I/O: 2 readers (in/out); 2 relays (lock/aux); 3 inputs (REX, DPS, Aux) global | Protection: ETL-listed to UL-294
Key Features
- • Expands A2E4/A2E4P up to 4 doors.
- • 2 readers (in/out).
- • 2 relays (lock/aux).
- • 3 inputs (REX, DPS, Aux) global.
- • 5 year warranty.
Installation Notes
The board is not a standalone controller — it requires an A2E4 or A2E4P host. REX, DPS and Aux inputs are global rather than per-door, which affects how request-to-exit and door-position wiring is planned.
| System | |
| Function | Door expansion board |
| Host Controllers | A2E4, A2E4P |
| Expanded Capacity | Up to 4 doors |
| Interface | |
| Readers | 2 (in/out) |
| Relays | 2 (lock/aux) |
| Inputs | 3 (REX, DPS, Aux), global |
| General | |
| Warranty | 5 years |
| Certifications | |
| Listing | ETL-listed, in accordance with UL-294 for Access Control System Units |
| Physical | |
| Dimensions | 6.125 x 4.25 x 0.75 in |
| Operating Temperature | 50°F to 95°F (10°C to 35°C) |
| Physical measurements are published in the A2M Specification Sheet, not on the product page. | |
