Surge Protection for Fiber to the Home (FTTH)

Neighborhood

OVERVIEW

Today's increased reliance on very sensitive electronics makes surge protection an important topic for Fiber to the Home (FTTH) applications deployed in rural, suburban and urban areas. The Insurance Institute for Business & Home Safety study found that $26 billion dollars was lost due to non-lightning power surges. In addition, there are about 25 million lightning strikes in the US each year that cause between $650M to $1B in losses according to the Insurance Information Institute, State Farm©.

This page discusses how to best protect your Fiber to the Home (FTTH) application and all associated components like the Rectifier, AC Power Panel, Transfer Switch, Battery Charger, Fiber Breakout Box, Street Cabinet, Wireless Radio, Router and Ethernet Switch. It covers the outdoor street cabinet owned by the Internet Service Provider or ISP as well as how the end-user of the high speed internet service can take steps to protect the equipment within the home.

Street Cabinet

Street Cabinet

Selecting SPD for Fiber to the Home (FTTH)

NEC/NFPA 70 require that Surge Protective Devices (SPDs) shall be UL 1449 Listed. This means selecting a surge protector is easier than it has ever been. There are only a few choices available for SPDs that are UL Listed for any of the most commonly used surge standards including UL 1449 5th Edition, UL 497B, and UL 497E.

Internet Service Provider (ISP) Infrastructure

FTTH Street Cabinet

Home Equipment

Main Service to the Home | Home Ethernet Router | Home Broadband Router


Internet Service Provider (ISP) Infrastructure

Recommended SPD for FTTH Street Cabinet

Location

Equipment

System

Surge Protector
Model #

Link

Street Cabinet

Street
Cabinet

120/240Vac

DAC103US-120T/G

DAC103US-120T/G


Rectifier

48Vdc
Power Output

DS230S-48DC

DS220S-24DC



Digital I/O

DLA-48D3

DLA-24D3 v.2



Relay Output

DS230S-48DC

DS220S-24DC


Ethernet Switch

Cat. 6A

MJ8-C6A

MJ8-C6A


Charge Controller

48Vdc
Power Input

DS230S-48DC

DS220S-24DC

Home Equipment

Recommended SPD for Service Panel

Location

Equipment

System

Surge Protector
Model #

Link

Main-Panel

Main Service
Panel

120/240Vac

M50-120T-A

M50-A

Recommended SPD for Wifi Router (Ethernet)

Location

Equipment

System

Surge Protector
Model #

Link

Wireless Router

Ethernet
Wifi Router

Cat. 6A
RJ45

MJ8-C6A

MJ8-C6A

Recommended SPD for Wifi Router (Coaxial)

Location

Equipment

System

Surge Protector
Model #

Link

Wireless Router

Cable
Broadband Router

Coaxial
F-Type

P8AX09-F/FF

P8AX09-6G-N-FF