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Rectangular beige circuit board with terminal blocks and Ethernet port

BOSCH

BOSCH B426 Security Communication Module

SKU CH-H7XX-7SVE7 MPN B426

Ethernet communication module for Bosch control panels, enabling IP reporting, remote programming and building-automation integration with AES encryption and path supervision

  • Product typeCommunication Module
  • IPv4 and IPv6 Ethernet connectivity for reliable alarm reporting
  • AES encryption with anti-substitution protects high-security and fire monitoring
  • Meets UL 864 and NFPA 72 standards for single communication technology
  • Flexible end-to-end path supervision on SDI, SDI2 or Option bus
  • Four-wire powered design enables remote RPS administration and building automation

Communication Module for Conettix Systems

The Bosch B426 Conettix Ethernet Communication Module connects compatible control panels to IPv4 or IPv6 networks using a four-wire powered SDI, SDI2, or Option bus. It is designed for commercial and industrial installations that require supervised alarm reporting and remote administration through Remote Programming Software or a handheld control application.

Integration with Panels and Networks

The module mounts on the panel bus and provides a single Ethernet path for alarm transmission, remote service, and building-automation integration. It can operate as a stand-alone communication path or alongside another technology, freeing the installer from running dedicated phone lines while supporting end-to-end path supervision and anti-substitution protection.

Security Standards and Encryption

For fire monitoring, the B426 meets UL 864 and NFPA 72 requirements as a Single Communication Technology when paired with approved Bosch panels. AES encryption secures data in transit, and flexible supervision timers help maintain link integrity across the network without adding audible noise or significant power draw to the panel supply.

How it compares

Measured against everything we stock in Home Protection & Access Devices, at today’s prices. Recalculated every night.

Price $177.99
Pricier than about 76% of the 1,270 comparable items (median $64.99).

Specifications

Product
Brand nameBosch
Product typeCommunication Module
Size & build
Shipping weight0.91 kg
Package size102 × 76 × 51 mm

Questions about this item

What Ethernet standards does the B426 support for network communication?

The module communicates over IPv4 or IPv6 Ethernet networks, providing two-way data paths with compatible control panels.

How much heat or noise does the B426 generate during continuous operation?

As a passive network module without fans or moving parts, it produces no audible noise and negligible heat when running all day.

Which control panels are required for the B426 to function?

It connects to compatible Bosch panels via SDI, SDI2, or Option bus using a four-wire powered interface.

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