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.

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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