IM-120
Multiple Input Extension Module.
Overview
IM-120 is Suprema's multiple input extension module, adding 12 independently supervised input channels to any CoreStation or OSDP V2-compliant access controller. Each channel supports TTL or supervised input mode, covering door contacts, motion sensors, alarm inputs, REX buttons and AC power failure detection — all via a single RS-485 OSDP V2 bus connection. With its Cortex M3 processor, 90 × 190 × 21 mm DIN-rail-friendly form factor and 2 relay outputs, IM-120 provides complete alarm and auxiliary input monitoring for large enterprise, industrial and infrastructure deployments.
Key Features
12 supervised input channels
12 TTL or supervised input channels — each individually configurable for door contacts, motion, alarm, REX or power-fail inputs.
OSDP V2 encrypted bus
Single RS-485 OSDP V2 connection to CoreStation — all input states reported over an encrypted, authenticated bus.
2 relay outputs
2 independent relay outputs for alarm sirens, strobe lights or auxiliary lock control alongside the 12 monitored inputs.
Compact DIN-rail form factor
90 × 190 × 21 mm profile mounts inside standard control panels and server-room enclosures — identical footprint to OM-120.
Gallery
Specifications
| General | |
|---|---|
| CPU | Cortex M3 72 MHz |
| Memory | 512 KB Flash + 64 KB SRAM |
| Dimensions | 90 × 190 × 21 mm |
| Weight | 203 g |
| Operating Temperature | -20 °C to 60 °C |
| Storage Temperature | -40 °C to 70 °C |
| Operating Humidity | 0–95% non-condensing |
| I/O | |
|---|---|
| Inputs | 12ch (TTL or Supervised selectable) |
| Supervised Inputs | 12ch |
| AUX Inputs | 2ch (AC POWER FAIL) |
| Relay Outputs | 2 |
| Tamper | 1ch |
| Connectivity | |
|---|---|
| RS-485 | 1ch — OSDP V2 compliant |
| Power | 12 V DC Max 0.2 A or 24 V DC Max 0.1 A |
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