The BarnMini series

The BarnMinis are ideal for standalone solutions and solve everything from a simple task to more comprehensive solutions. BarnMinis can be used in conjunction with other Barnfind products to empower complete distributed systems in larger facilities


TCP/IP to RS422/RS485 and GPI/O 

BarnMini-05 offers a compact way to convert an RS422/RS485 serial data, 4x GPI, 4x GPO to Ethernet.

The unit serves as an intelligent bridge for third-party devices. GPI and GPO are often used to transfer tally between two locations.

BarnMini-05 can control optical changeover switches such as BarnMini-06 in a redundancy setup.

All BarnMini modules can be used as a standalone box or in a more sophisticated system with BarnOne or BarnColor.

Technical Specifications

Serial port
• RJ45 connector
• Selectable RS422 or RS485

GPIO ports
• 2x RJ45 connector with 2x GPI and 2x GPO per connector
• 4x GPI – optocoupled; common floating 5V reference; connect to 0V reference to trigger
• 4x GPO – Relays; max. 50V AC/DC; max 100mA

SFP port
• 1x SFP port (small formfactor pluggable) for transceivers, MSA compliant
• Recommended SFP module: BTSFP-GBase-CU
• 100Mbit/s Ethernet (carried over SGMII)

Power supply
• 12-24V DC, power supply included

Physical size
• 92mm x 98mm x 22mm
• 200g

Ordering code:
• BarnMini-05



v1.0.6.2 (19th of August 2021)




Spare PSU for BarnMini series (stand-alone)


The BarnMini frame

BTF-Mini-16, is a housing with space for up to 16 x BarnMini modules of any kind.


Find all our accessories here.

Download product list.

See our product video.

BarnMini solve everything from a simple task to the more comprehensive solutions where the BarnMini’s are used in conjunction with BarnOne’s to make complete distributed systems in lager facilities.