Shipping included*
Exclusions
Additional shipping fees may apply in rare circumstances for deliveries outside standard service areas. In most cases, this only potentially affects shipments to the Northwest Territories and Yukon, as well as certain heavy or oversized items.
Black Box LBH120A-H-ST Ethernet Switch - 5 Port Fast Ethernet - Layer 2 - DIN Rail Mountable - Twisted Pair & Optical Fiber
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
This switch delivers Fast Ethernet connectivity with support for 10/100Base-TX over twisted pair and 100Base-X over optical fiber. The multi-mode fiber optic interface operates at a 1300 nm wavelength, enabling extended network runs without signal degradation. Layer 2 switching capabilities include VLAN support, quality of service (QoS) prioritization, and traffic management features that optimize network efficiency and security.
The compact physical design measures 4.30" in height, 1" in width, and 2.80" in depth, with an approximate weight of 8 oz. This small footprint minimizes space requirements while maintaining full functionality. The DIN rail mounting kit included with the switch simplifies installation in industrial settings, and the environmentally friendly construction adheres to sustainable manufacturing practices.
Relevant factors for this section include Total Number of Network Ports, Port/Expansion Slot Details, Media Type Supported, Ethernet Technology. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The LBH 120 switch combines rugged construction with versatile connectivity options, making it a reliable choice for demanding network environments. Its dual media support allows seamless integration into existing infrastructure, whether using copper cabling for short runs or fiber optics for longer distances and noise immunity.
Industrial Durability
Designed for harsh environments, this switch withstands vibrations, temperature fluctuations, and electrical interference common in industrial settings.
- DIN rail mounting for secure installation
- Built-in power supply for stable operation
- Compact, robust enclosure
Managed Features
Layer 2 capabilities provide advanced network management without the complexity of higher-layer switches.
- IGMP snooping for multicast efficiency
- Port mirroring for traffic analysis
- Spanning tree for loop prevention
Deployment / Use Cases
This switch is particularly well-suited for extending network connections to remote or isolated locations where standard switches may not fit or survive. Its small size and DIN rail compatibility make it perfect for control rooms, manufacturing floors, and utility cabinets where space is at a premium.
Common applications include connecting devices in conference rooms, laboratories, lobby kiosks, and department workgroups. The fiber optic support enables backbone links between buildings or across large facilities, while the twisted pair ports handle local device connections. The TAA compliance also makes it eligible for U.S. government contracts and other regulated procurement scenarios.
Industrial Automation
Connect PLCs, sensors, and HMIs in manufacturing or process control systems with reliable, low-latency networking.
Branch Office Networking
Provide basic switching for small offices or remote sites with mixed copper and fiber infrastructure.
Physical Profile
The switch's slim profile and lightweight design facilitate installation in tight spaces without sacrificing performance. The DIN rail mounting kit allows quick attachment to standard rails, eliminating the need for additional brackets or tools. The durable casing protects internal components from dust, moisture, and physical impacts, ensuring long-term reliability in challenging environments.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 4.30" (109.22 mm), 1" (25.40 mm), 2.80" (71.12 mm), 8 oz (226.80 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 1" (25.40 mm)
- Depth
- 2.80" (71.12 mm)
- Height
- 4.30" (109.22 mm)
- Weight
- 8 oz (226.80 g)
- Length
- 1300 nm
What's in the Box
Each unit includes the complete hardware needed for immediate deployment.
Package contents include LBH 120 Ethernet Switch Din Rail Mounting Kit, LBH 120 Ethernet Switch. These included items support setup, installation, and immediate deployment without needing to source the core bundled accessories separately.
Highlights
- 5 Fast Ethernet ports for flexible device connectivity
- Dual media support: twisted pair and optical fiber
- Layer 2 switching with IGMP snooping and port mirroring
- DIN rail mountable for industrial and space-constrained installations
- Compact dimensions: 4.30" H x 1" W x 2.80" D
- Built-in power supply for stable voltage delivery
- TAA compliant for government and regulated deployments
- 5-year limited warranty for long-term reliability
- Environmentally friendly construction
- Made in Taiwan with quality manufacturing standards
Specifications
| Specifications | |
|---|---|
| Manufacturer | Black Box Corporation |
| Manufacturer Part Number | LBH120A-H-ST |
| Brand Name | Black Box |
| Product Series | LBH120 |
| Product Name | LBH 120 Ethernet Switch |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Total Number of Network Ports | 5 |
| Port/Expansion Slot Details | 5 x Fast Ethernet Network |
| Media & Performance | |
| Media Type Supported | Twisted Pair,Optical Fiber |
| Ethernet Technology | Fast Ethernet |
| Network Technology | 10/100Base-TX,100Base-X |
| Fiber Mode Supported | Multi-mode |
| Fiber Optic Cable Wavelength | 1300 nm |
| Network & Communication | |
| Layer Supported | 2 |
| Power Description | |
| Power Source | Power Supply |
| Physical Characteristics | |
| Form Factor | Rail-mountable,DIN Rail Mountable |
| Height | 4.30" (109.22 mm) |
| Width | 1" (25.40 mm) |
| Depth | 2.80" (71.12 mm) |
| Weight (Approximate) | 8 oz (226.80 g) |
| Miscellaneous | |
| Package Contents | LBH 120 Ethernet Switch Din Rail Mounting Kit |
| Environmentally Friendly | Yes |
| Country of Origin | Taiwan |
| TAA Compliant | Yes |
| Warranty | |
| Limited Warranty | 5 Year |
User Manual
FAQ
How many ports does this switch have, and what type are they?
The Black Box LBH 120 switch has 5 Fast Ethernet ports. These ports support both twisted pair (copper) and optical fiber connections, providing flexibility for different network cabling types. The switch uses 10/100Base-TX for twisted pair and 100Base-X for fiber, allowing speeds up to 100 Mbps per port.
What does Layer 2 support mean for this switch?
Layer 2 support indicates that this switch operates at the data link layer of the OSI model, enabling managed features like VLANs, quality of service (QoS), and spanning tree protocol. It includes IGMP snooping for efficient multicast traffic handling and port mirroring for network monitoring, making it more capable than unmanaged switches while remaining straightforward to configure.
Can this switch be mounted on a DIN rail?
Yes, this switch is designed for DIN rail mounting, which is common in industrial and commercial electrical panels. The included DIN rail mounting kit allows for secure installation without additional hardware. This form factor saves space and provides a rugged, vibration-resistant mounting solution compared to traditional rack or desktop placement.
Does this switch support fiber optic connections?
Yes, the switch supports multi-mode fiber optic connections with a 1300 nm wavelength. This allows for network runs over longer distances with immunity to electromagnetic interference. The fiber support is ideal for backbone links or connections in noisy environments where copper cabling might be less reliable.
What is the warranty period for this product?
The Black Box LBH 120 switch comes with a 5-year limited warranty. This extensive coverage reflects the product's durability and reliability, providing peace of mind for critical deployments. The warranty covers defects in materials and workmanship under normal use conditions.
Is this switch TAA compliant, and why does that matter?
Yes, this switch is TAA (Trade Agreements Act) compliant. TAA compliance ensures that the product meets U.S. government procurement requirements, making it eligible for federal contracts and other regulated purchases. It verifies that the switch is manufactured in a designated country, in this case Taiwan, adhering to specific trade and quality standards.
| Qty | Price | Available |
|---|
