Centralized Surge Protection for 16-Port and 24-Port Ethernet Networks
LY21-2 is a centralized multi-port RJ45 surge protector designed for network cabinets with multiple Ethernet data lines. Available with sixteen or twenty-four protected channels, it helps prevent transient overvoltage from entering switches, servers, modems, network terminals, and monitoring equipment through connected network cables.
16-port and 24-port centralized protection options
Designed for non-PoE Ethernet data lines
Up to 100Mbps transmission with ≤0.2dB insertion loss
Compact centralized design for network and security cabinets
Suitable Applications
LY21-2 is suitable for centralized network installations that require surge protection for sixteen or twenty-four RJ45 Ethernet data lines.
Network Switch Cabinets
Provides centralized protection for multiple switch ports and Ethernet cable connections.
Server Rooms
Helps protect server ports, modems, gateways, routers, and network termination equipment.
Security Monitoring Networks
Protects multiple non-PoE monitoring, access-control, and network communication lines.
Industrial Ethernet
Suitable for centralized Ethernet communication lines in factories, control rooms, and automation systems.
FAQ
Common questions about LY21-2 16-port and 24-port RJ45 network surge protector selection.
What is the LY21-2 CAT16/CAT24 surge protector used for?
It provides centralized surge protection for sixteen or twenty-four RJ45 Ethernet data lines connected to switches, servers, modems, monitoring systems, and other network equipment.
What is the difference between CAT16 and CAT24?
CAT16 protects sixteen independent RJ45 network channels, while CAT24 protects twenty-four channels. In this product name, CAT16 and CAT24 describe the port configuration rather than an Ethernet cable category.
Is this model suitable for PoE networks?
The listed CAT16/CAT24 version is designed for network data lines and does not include the separate 60V PoE power-section ratings shown for the LY21-2 PoE model. Use a confirmed PoE-compatible protector for powered Ethernet equipment.
What Ethernet speed does the protector support?
The listed maximum transmission rate is 100Mbps. Do not describe the product as Gigabit-compatible unless separate test data confirms Gigabit Ethernet performance.
Where should the multi-port protector be installed?
Install it in the network or security cabinet near the protected switch, server, modem, network recorder, or other centralized network equipment.
What should be confirmed before ordering?
Confirm whether sixteen or twenty-four ports are required, whether the network is PoE or non-PoE, the Ethernet speed, RJ45 pin configuration, cable category, grounding method, cabinet space, and required surge withstand level.
