Allied Telesyn AT-RH505BE Ethernet Switch

Description

Allied Telesyn AT-RH505BE Ethernet Switch

Product Dimensions：

The Allied Telesyn (now Allied Telesis) AT-RH505BE is a legacy unmanaged micro-hub designed for small-scale networking and legacy Ethernet environments. While it is an older model, it remains a reliable solution for specific industrial or legacy connectivity needs.

## Product Overview

The AT-RH505BE is a 5-port 10Base-T Ethernet Micro-Hub. It is designed to be compact, “plug-and-play,” and highly efficient for expanding a local area network (LAN) at the desktop level. Its primary role is to act as a central point for connecting up to five devices using standard twisted-pair cabling.

## Technical Specifications

## Product Advantages

• Simplicity: Being an unmanaged hub, it requires zero configuration. It is truly “plug-and-play.”

• Compact Design: Its small footprint allows it to be placed on a desk or mounted in tight spaces without cluttering the workspace.

• Reliability: Allied Telesis is known for high-quality hardware. This unit features a fanless design, making it silent and less prone to mechanical failure.

• Diagnostic LEDs: Clear visual indicators for each port make it easy to troubleshoot connectivity issues at a glance.

## Key Precautions (Important Notes)

Important: This is a Hub, not a Switch.

• Collision Domain: All devices connected to this hub share the same 10 Mbps bandwidth. High traffic will lead to collisions, reducing overall network efficiency compared to modern switches.

• Speed Limitation: It supports only 10 Mbps. It will not support 100 Mbps (Fast Ethernet) or 1000 Mbps (Gigabit) speeds.

• Half-Duplex Only: Hubs operate in half-duplex mode, meaning they cannot send and receive data simultaneously.

• Security: Traffic is broadcast to all ports. Any device on the hub can “see” the packets meant for other devices, which may pose a security risk in sensitive environments.

## Product Applications

1. Legacy Systems Integration: Ideal for connecting older industrial machinery or medical equipment that only supports 10Base-T interfaces.

2. Network Monitoring/Sniffing: Because a hub broadcasts all traffic to all ports, it is a useful tool for network engineers to “sniff” traffic using a protocol analyzer (like Wireshark) without needing a managed switch’s mirror port.

3. Educational Labs: Useful in academic settings to demonstrate how Ethernet collisions and CSMA/CD protocols work in a physical network.

4. Simple Home/Small Office: Expanding a single network drop to multiple low-bandwidth devices like printers or basic VoIP phones.

Shipping Port: Xiamen, China

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