Bosch PRAESENSA PRA-IM16C8 Control interface module, 16×8

• Sixteen general purpose inputs for control actions from external switches
• Eight general purpose relay outputs to activate external control circuits
• Two supervised trigger outputs for NAC boosters
• PoE powered device with dual redundant Gigabit network interface
• LED status indicators for all inputs and outputs

The PRA-IM16C8 Control interface module adds configurable and supervised control inputs, voltage‑free control outputs and supervised trigger outputs to the PRAESENSA system. These contact inputs and outputs provide the easy logic connectivity of a PRAESENSA system to auxiliary equipment such as fire alarm systems, strobes, indicators, or speaker relays.
The PRA-IM16C8 enclosure allows for DIN rail installation near to the auxiliary equipment for short interconnections. The module only requires a connection to an OMNEO IP‑network with Power over Ethernet (PoE) for communication and for power supply combined.

Functions
IP-network connection

• Direct connection to the IP‑network. One shielded CAT5e cable is sufficient for Power over Ethernet and for data exchange.
• Connect a second shielded CAT5e cable for dual redundancy of network and of power connection.
• Integrated network switch with two OMNEO ports allows for loop‑through connections to adjacent devices that provide PoE. Rapid Spanning Tree Protocol (RSTP) is supported to enable recovery from failing network links.

General-purpose control inputs and outputs

• Sixteen control inputs receive contact closure information from external systems with configurable connection supervision.
• Eight relay contacts, voltage‑free and with single‑pole and double‑throw (SPDT), to activate external devices.
• Two supervised 12 V trigger outputs to trigger a booster for Notification Appliance Circuits (NAC), such as strobes and horns. Supervision happens through polarity reversal in combination with an end-of-line resistor.
• Control input and output functions are configurable in the software.
• LEDs indicate the operational status and the fault status of all inputs and outputs.

Installation

• The compact enclosure for DIN‑rail mounting allows for easy installation in most applications and environments.
• Pluggable spring-cage terminal blocks for easy wire connection.
• Connection supervision of control inputs, trigger outputs and network connections, including ground short supervision.