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Telecom Fuses

TF 600

www.schurter.com/pg0_3

Fuses

GLOBAL TELECOM STANDARDS

ITU-T K.21/44

ITU-T K.12 + ITU-T K.28

IEC 60950 + ITU-T K.50 + ITU-T K.51

Equipment

Secondary Protection

Primary Protection

Powered IT Safety

HOW TO SELECT THE RIGHT FUSE-LINK FOR SECONDARY PROTECTION?

1. Select your equipment type

2. Use the Key Device Selection Criteria to determine best suitability for your application

Application

Specification

Key Device Selection Criteria

Faster Time-to-Open

Cooler Surface Temperature

Customer Premises Equipment (CPE)

TIA-968-A

TF 600, 0.5 A (2000.0010.xx)

TF 600, 2 A (2000.0012.xx)

Modems (Analog, V.90, ISDN, xDSL), ADSL splitters, phone sets, fax machines,

UL 60950 / IEC 60950 TF 600, 1.25 A (2000.0011.xx)

answering machines, caller ID, internet appliance, PBX systems, POS terminals

ITU-T K.21/44

Access Network Equipment

Telcordia GR-1089

TF 600, 1.25 A (2000.0011.xx) TF 600, 2 A (2000.0012.xx)

Remote terminals, line repeaters, muliplexers, cross-connects

TIA-968-A

UL 60950 / IEC 60950

ITU-T K.45/44

Central Office Equipment

Telcordia GR-1089

TF 600, 1.25 A (2000.0011.xx) TF 600, 2 A (2000.0012.xx)

Analog linecards (SLIC), ISDN linecards, xDSL modems,

TIA-968-A

ADSL/VDSL splitters, T1/E1 linecards, muliplexers, servers

UL 60950 / IEC 60950

ITU-T K.20/44

Customer Premises Equipment (CPE)

Access Network Equipment

Central Office Equipment

ITU-T K.45/44

ITU-T K.20/44

UL 60950

Telcordia GR-974 + Telcordia GR-1361

TIA-968-A

Powered IT Safety

Primary Protection

Equipment

Secondary Protection

Telcordia GR-1089

North America

International

MDF

NID

NID

Splitter

Intra-Building Wiring

Twisted-Pair

POTS + DSL

Fibre Optic

Cable

Twisted-Pair

POTS

ADSL Modem

MDF

DSL = Digital Subscriber Line

MDF = Main Distribution Frame

NID = Network Interface Device

POTS = Plain Old Telephone Service