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Compact rail-mountable industrial switch, rugged metal case, five copper ports, one fibre uplink

Black Box Corporation

Black Box Corporation LBH120A-H-ST network switch, 5-port, 10/100 Mbps, -10 to +60 °C

SKU CH-9ZT5-9N1T5 MPN LBH120A-H-ST

A hardened 5-port Fast Ethernet switch with four copper ports and one fibre uplink, rated for -10 to +60 °C industrial environments

  • Operates from -10 °C to +60 °C for harsh industrial sites
  • Five Fast Ethernet ports connect copper and fibre segments
  • Unmanaged design gives plug-and-play simplicity in factories
  • Rugged metal case withstands vibration and contaminants
  • Rail-mount form factor fits DIN-rail cabinets easily

Hardened industrial switching

The Black Box LBH120A-H-ST is a five-port unmanaged switch built for harsh environments. It provides four copper ports and one 100 Mbps fibre uplink in a compact rail-mountable enclosure. The unit operates from -10 °C to +60 °C, making it suitable for factories, power plants and mining sites where standard switches would fail.

Fast Ethernet bandwidth ceiling

All copper ports run at 10/100 Mbps while the single uplink is fixed at 100 Mbps fibre. This limits aggregate throughput to Fast Ethernet speeds and prevents Gigabit or higher connections. Networks needing more than 100 Mbps per segment or multiple uplinks cannot use this switch.

Rugged rail-mount construction

The metal case measures 4.3 inches wide by 2.8 inches deep and includes a mounting kit for DIN-rail installation. Its fanless design resists dust and vibration, while the wide temperature rating ensures reliable operation in extreme heat or cold. The small footprint fits tight cabinets without blocking adjacent equipment.

Highlights

  • Operates from -10 °C to +60 °C for harsh industrial sites
  • Five Fast Ethernet ports connect copper and fibre segments
  • Unmanaged design gives plug-and-play simplicity in factories
  • Rugged metal case withstands vibration and contaminants
  • Rail-mount form factor fits DIN-rail cabinets easily

Specifications

BrandBLACK BOX NETWORK SRV
Shipping weight0.91 kg
Package size127 × 102 × 51 mm

Questions about this item

Should I pick the model with four copper ports plus one fiber uplink or a different port mix?

This model provides four 10/100-Mbps copper ports and one 100-Mbps fiber uplink, so choose it when you need a single fiber link alongside copper connections.

What does the 10/100 Mbps rating mean for actual throughput on the copper ports?

Each copper port negotiates at 10 or 100 Mbps full duplex, giving up to 100 Mbps per port in real traffic.

Which Ethernet standard does the switch use and what speed does it cap at?

It uses 10/100Base-TX on copper and 100Base-X on the fiber port, capping all ports at 100 Mbps.

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