MP1502 — Dual Door Panel
Overview
The Mercury MP1502 is a two-door access control panel. It supports 2 doors with up to 4 readers (2 in/2 out), 16 supervised inputs, and 8 relay outputs. Connects to a host controller via RS-485.
| Spec | Value |
|---|---|
| Doors | 2 |
| Readers | 4 (Wiegand or OSDP) |
| Inputs | 16 supervised |
| Outputs | 8 relay |
| Communication | RS-485 to host controller |
| Power Input | 12–24VDC |
DIP Switches
The MP1502 uses an 8-position DIP switch bank to set the RS-485 board address (binary encoded, SW1=LSB).
| Address | SW1 | SW2 | SW3 | SW4 | SW5–8 |
|---|---|---|---|---|---|
| 0 | OFF | OFF | OFF | OFF | OFF |
| 1 | ON | OFF | OFF | OFF | OFF |
| 2 | OFF | ON | OFF | OFF | OFF |
| 3 | ON | ON | OFF | OFF | OFF |
| 4 | OFF | OFF | ON | OFF | OFF |
| 5 | ON | OFF | ON | OFF | OFF |
| 6 | OFF | ON | ON | OFF | OFF |
| 7 | ON | ON | ON | OFF | OFF |
SW5–SW8: Reserved — leave OFF.
Wiring Notes
RS-485 Bus: A(+) and B(−) to host controller RS-485 port. Daisy-chain up to 32 devices. Terminate last device with 120Ω.
Door 1 readers: R1 (IN) and R2 (OUT). Door 2 readers: R3 (IN) and R4 (OUT).
Door strikes: Relay 1 = Door 1, Relay 2 = Door 2. Relay 3–8 available for auxiliary outputs.
Door contacts: Input 1 = Door 1 position, Input 2 = Door 2 position (use supervised EOL resistors).
Rex inputs: Input 3 = Door 1 Rex, Input 4 = Door 2 Rex.