Go to GlobalSpec.com Home
Toolbar   The Engineering Toolbar
The Ultimate Resource for Engineering and Technical Research. (Learn More)

Customer Premises Equipment (CPE)

From Littelfuse, Inc.
 

 
CPE is defined as any telephone terminal equipment which resides at the customer's site and is connected to the Public Switched Telephone Network (PSTN). Telephones, modems, caller ID adjunct boxes, PBXs, and answering machines are all considered CPE. CPE should be protected against overvoltages that can exceed 800 V and against surge currents up to 100 A. In Figure 3.1 through Figure 3.6, SIDACtor devices were chosen because their associated peak pulse current (IPP) rating is sufficient to withstand the lightning immunity test of TIA-968-A (formerly known as FCC Part 68) without the additional use of series line impedance. Likewise, the fuse shown in Figure 3.1 through Figure 3.6 was chosen because the amps2time (I2t) rating is sufficient to withstand the lightning immunity tests of TIA-968-A without opening, but low enough to pass UL power cross conditions. The following regulatory requirements apply: * TIA-968-A (formerly known as FCC Part 68) * UL 60950
Products & Services
Fuses protect electrical devices and components from overcurrents and short circuits that occur in improperly operating circuits. Search by Specification | Learn more about Fuses
Circuit breakers are mechanical switching devices capable of breaking currents under specified abnormal circuit conditions. Search by Specification | Learn more about Circuit Breakers
Ground fault relays protect electrical equipment from ground faults. A ground fault is an unintentional current path between a current-carrying conductor and a grounded surface. Search by Specification | Learn more about Ground Fault Relays
Ground fault circuit interrupters (GFCI) disconnect a circuit when the current between the neutral conductor and the live conductor becomes unbalanced. GFCIs are also known as residual current devices. Search by Specification | Learn more about Ground Fault Circuit Interrupters (GFCI)
Fuse holders are devices for containing, protecting and mounting fuses. Blown fuses can be changed quickly and easily when used in conjunction with a fuse holder. Search by Specification | Learn more about Fuse Holders
Product Announcements
Schurter, Inc. - Schurter's New Surface Mount Fuse for Telecom
SCHURTER's new RoHS compatible non-resettable fuse series, TF 600, offers a rated breaking capacity of 60 A at 600 VAC, over a current range of 0.5 - 2 A. The fuse is designed to assist manufacturers... (read more)
Tyco Electronics, Raychem Circuit Protection Products - PolySwitch TSM600-400F Overcurrent Device
PolySwitch TSM600-400F Resettable Overcurrent Device Helps Communications Equipment Meet GR-1089 ISSUE 3 Requirements... (read more)
Tyco Electronics, Raychem Circuit Protection Products - 2Pro Device - Overcurrent/Overvoltage Protection
The newly introduced Raychem Circuit Protection 2Pro device series features integrated overcurrent/overvoltage circuit protection technology designed to help prevent damage to telephony communications... (read more)
Bel Fuse Inc. - Polymer PTC Resettable Fuses
Bel Fuse Inc., a premier developer of fuses and magnetic-based solutions for high-speed networking and computer applications, today announced the availability of a full line of surface mount and... (read more)
Ethernet Extension Experts (Enable-IT, Inc.) - Enable-IT 8950 Ethernet DSLAM...
The Enable-IT™ 8950 Multi-Line Ethernet Extender Concentrator is a 2-pair web smart manageable solution that drives Ethernet data and voice lines up to 6,000ft or 1.8km distance over a 2-Pair (4... (read more)
Citel America, Inc. - DS250VG - AC Surge Protection Modules
Citel's DS250VG is designed to protect against direct and indirect effects of lightning. The device is extremely rugged for application in high lightning density areas where the risk of heavy surge... (read more)
Citel America, Inc. - DS250VG High-Energy AC Surge Protection Module
CITEL, INC. introduces the DS250VG protection module for single and three phase AC power line applications. CITEL component engineers have developed a specially designed Gas Discharge Tube (GDT) that... (read more)
Power Solutions - Broadband Power Systems
Power Solutions carries a wide assortment of Broadband Power Systems for DC Power Supplies and DC UPS Systems from manufacturers such as APC, Emerson Network Power, CyberPower Systems, and Alpha... (read more)
Topics of Interest
Secondary protectors (stand alone units or integrated into strip protectors and UPSs) are adjunct devices used to enhance the protection level of customer premise equipment (CPE). Due to the... (Read More)
High speed transmission equipment encompasses a broad range of transmission protocols such as T1/E1, xDSL, and ISDN. Transmission equipment is located at the central office, customer premises, and... (Read More)
PBXs, KSUs, and PABXs contain line cards that support various transmission protocols such as ISDN, T1/E1, HDSL, and ADSL (Figure 3.46). PBXs also have features such as a POTS (plain old telephone... (Read More)
Given that line cards are highly susceptible to transient voltages, network hazards such as lightning and power cross conditions pose a serious threat to equipment deployed at the central office and... (Read More)
As cable providers enter the local exchange market, protection of CATV (Community Antenna TV) equipment becomes even more critical in order to ensure reliable operation of equipment and uninterrupted... (Read More)
See more product announcements for Fuses
Get Control of Your Plant's Assets

Get Control of Your Plant's Assets
Ferraz Shawmut


HIGH VOLTAGE FUSES

HIGH VOLTAGE FUSES
General Atomics Energy Products


First Chip Fuse in a 1206 Package Rated up to 25 A

First Chip Fuse in a 1206 Package Rated up to 25 A
Schurter, Inc.


11 See more product announcements for Fuses