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Network Test Equipment Specifications

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General Specifications
   Equipment Type       
   Your choices are...
  		      
 
   Breakout Boxes
  		     Breakout boxes are multiconductor devices used to test and monitor signals such as timing signals, data signals, and control signals. 
 
   Bit-Error Rate Testers
  		     Bit-error rate testers are devices or procedures that measure the bit error rate (BER) for a specific transmission. BER is usually expressed as ten to a negative power so that, for example, a BER of 10-9 means that for every Gigabit transmitted, one bit is sent or received in error. Bit-error rate testers can use either synchronous or asynchronous communications.
 
   Network / LAN Analyzer
  		     Network analyzers and local area network (LAN) analyzers monitor traffic on a network. They collect information about packet sizes, the number of packets, error packets, overall usage of a connection, the number of hosts and their media access control (MAC) addresses, and details about communications between hosts and other devices.
 
   Network Cable tester
  		     Network cable testers probe and test telecommunication cables.
 
   Protocol Analyzer
  		     Protocol analyzers capture all of the traffic on a medium, parse the data according to the rules of installed network protocols, and display the results.
 
   Telephone Testers
  		     Telephone testers are kits or modules used to test telephone systems and lines.
 
   Tone Tracers
  		     Tone tracers are used to monitor and trace the tone in telecommunication lines.
 
   Tone Generators
  		     Tone generators produce the tone in telecommunication systems.
 
   Other
  		     Other unlisted or proprietary equipment types.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Network Protocol      An agreed-upon format for transmitting data between two devices.
   Your choices are...
  		      
 
   ATM
  		     Asynchronous transfer mode (ATM) is a high-speed, point-to-point, switched network technology that uses fiber optic or Category 5 (Cat-5) copper cabling. ATM transmits data in cells rather than frames and can carry text, audio, and video. Each cell is a packet that contains 5 bytes of routing information and 48 bytes of data. Basic networks run at 155 Mbps, but implementations that use fiber optic cable can achieve speeds as high as 660 Mbps. The basic desktop standard runs at 25 Mbps.
 
   10Base-T Ethernet
  		     10Base-T (twisted pair Ethernet) is one adaptation of the IEEE 802.3 (Ethernet) standard for local area networks (LAN). 10Base-T uses twisted-pair cables with a maximum length of 100 meters. These cables are thinner and more flexible than the coaxial cables used with 10Base-2 and 10Base-5 implementations. 10Base-T cables are connected with RJ-45 connectors. 10Base-T systems operate at 10 Mbps and use a baseband-type transmission.
 
   Fast Ethernet
  		     Fast Ethernet is a networking standard that supports data transfer rates up to 100 Mbps. There are two basic types of Fast Ethernet: 100Base-X and 100Base-T. 100Base-X uses two physical links, one for transmission and one for reception, between nodes. 100Base-T uses medium access control protocol (MAC). The IEEE 802.3 committee developed the standards for Fast Ethernet.
 
   Gigabit Ethernet
  		     Gigabit Ethernet operates over multimode fiber optic cable, single mode fiber optic cable, and unshielded twisted-pair cable at 1000 Mbps. It is defined in the IEEE 802.3u standard and used primarily as a high-speed enterprise backbone. 
 
   FDDI
  		     Fiber distributed data interface (FDDI) is a reliable, high-speed backbone for mission-critical and high-traffic networks. It can transport data at a rate of 100 Mbps and support up to 500 stations on a single network. FDDI was designed to run through fiber optic cables, transmitting light pulses to convey information between stations. FDDI can also run on copper using electrical signals.
 
   Fibre Channel
  		     Fibre Channel technology uses optical fibers to connect computers and peripheral devices that require high bandwidth. It functions via a serial data transfer architecture that is compatible with SCSI. The most prominent Fibre Channel standard is Arbitrated Loop (FC-AL), which can support full-duplex data transfer rates of 100 MBps.
 
   Frame Relay
  		     Frame relay is a standard communications protocol and simplified form of packet-switching. It is similar to X.25, which uses header information to route synchronous frames of data to different destinations. Frame relay is specified in CCITT recommendations I.122 and Q.922. These specifications add relay and routing functions to the data link layer (layer 2 of the OSI reference model).
 
   FPDP
  		     Front panel data port (FPDP) is a high-speed, 32-bit, parallel, synchronous interface. Versa Module Eurocard (VME) boards are interconnected by ribbon cables which are routed across the front panels. FPDP is the VITA-17 standard from the VMEbus International Trade Association (VITA).
 
   E1
  		     E1 is a wide-area digital transmission protocol used mainly in Europe. It carries data at a rate of 2.048 Mbps.
 
   iSCSI
  		     Internet SCSI interface (iSCSI) is a protocol for transporting small computer system interface (SCSI) commands and data across an Internet protocol (IP) network.
 
   ISDN
  		     Integrated services digital network (ISDN) is a communication protocol offered by telephone companies which allows telephone networks to carry data, voice, and other traffic.
 
   Modem
  		     A modulator-demodulator or modem is a device that converts digital and analog signals. At the source, a modem converts digital signals to a form suitable for transmission over analog communication facilities. At the destination, the analog signals are returned to their digital form. Modems allow data to be transmitted over voice-grade telephone lines.
 
   Parallel
  		     Parallel interfaces are computer boards or ports which transmit multiple bits of data simultaneously, along different wires.
 
   PPP
  		     Point-to-point protocol (PPP) is a mechanism for creating and running IP and other network protocols over a serial link (e.g., dial-up connections).
 
   Serial
  		     Serial interfaces are computer boards or ports which transmit data one bit after another over a single wire. 
 
   SLIP
  		     Serial-line Internet protocol (SLIP) is an encapsulation method for transmitting IP packets over a serial connection. Because its architecture does not differentiate network protocols, SLIP cannot transmit more than one network protocol at a time. Typically, SLIP is used with transmission control protocol/Internet protocol (TCP/IP), a popular suite of communication protocols. By using a dial-up SLIP server, remote computers can connect to the Internet with TCP/IP.
 
   SONET
  		     Synchronous optical network (SONET) defines the rates and formats for synchronous data transmission over fiber-optic networks. SONET is specified in ANSI T1.105, ANSI T1.106, and ANSI T1.117 from the American National Standards Institute (ANSI). SONET is technically consistent with synchronous digital hierarchy (SDH), a European standard from UTI-T.
 
   T1
  		     T1 is a digital, wide area network (WAN), carrier protocol. Using AMI or B8ZS coding, T1 transmits digital signal level 1 (DS-1) formatted data at 1.544 Mbps through the telephone-switching network.
 
   TCP/IP
  		     Transmission control protocol / Internet protocol (TCP/IP) is a suite of communications protocols used to connect hosts on the Internet. TCP/IP uses several protocols. TCP and IP are the main ones. 
 
   1394a-b (FireWire®)
  		     FireWire® is a cross-platform implementation of the high-speed serial data bus defined in the IEEE 1394 standard from the Institute of Electrical and Electronics Engineers (IEEE). A registered trademark of Apple Computer, FireWire is designed to speed the movement of multimedia data and large files between personal computers (PC) and digital consumer products such as camcorders, video tapes, video disks, set-top boxes, and music systems. FireWire features simplified cabling, hot swapping, and transfer speeds of up to 400 Mb/sec.
 
   RS232
  		     RS232 is a serial, binary-data interface between data terminal equipment (DTE) and data communications equipment (DCE). 
 
   RS422
  		     RS422 is a balanced serial interface for the transmission of digital data. It was designed for greater distances and higher Baud rates than RS232.
 
   RS485
  		     Like RS422, RS485 is a balanced serial interface for the transmission of digital data. The difference between RS422 and RS485 is that RS485 can be transformed into a multi-point application.
 
   Other
  		     Other unlisted network protocols.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Number of Ports:
  		     The number of ports available.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
Form Factor / Port
   Form Factor:       
   Your choices are...
  		      
 
   Hand Held 
  		     Devices are designed to be used while held by hand.
 
   Notebook
  		     Devices are similar to notebook or laptop computers.
 
   Desktop
  		     Devices are designed to sit on a table or desktop.
 
   Rack Mount Unit
  		     Devices mount in racks and come with hardware such as rail guides, flanges, or tabs. Some rack-mounted devices fit in a standard 19” telecommunications rack.
 
   Integrated Circuit (IC) / Chip
  		     Devices are integrated circuit (IC) chips that mount on printed circuit boards (PCBs).
 
   Printed Circuit Board (PCB)
  		     Devices are printed circuit boards (PCBs) that attach to enclosures or plug directly into computer backplanes.
 
   Other
  		     Other unlisted form factors.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Interface Port       
   Your choices are...
  		      
 
   BNC
  		     Bayonet Neil-Concelman (BNC) connectors were designed for military applications, but are used widely in video and RF applications to 2 GHz. BNC connectors have a slotted outer conductor and a plastic dielectric that causes increasing losses at higher frequencies. BNC connectors are usable above 4 GHz as long as the slots radiate signals; however, these devices may not be mechanically stable to 10 GHz. Both 50Omega: Ohms  and 75Omega: Ohms BNC connectors are available. BNC connectors are also known as bayonet navy connectors or baby Neil connectors.
 
   FireWire® (IEEE 1394)
  		     FireWire® is a cross-platform implementation of the high-speed serial data bus defined in the IEEE 1394 standard from the Institute of Electrical and Electronics Engineers (IEEE). A registered trademark of Apple Computer, FireWire is designed to speed the movement of multimedia data and large files between personal computers (PC) and digital consumer products such as camcorders, video tapes, video disks, set-top boxes, and music systems. FireWire features simplified cabling, hot swapping, and transfer speeds of up to 400 Mb/sec.
 
   G.703
  		     G.703 is a Consultative Committee on International Telephony and Telegraphy (CCITT) standard for voice-over-digital carriers such as T1 and E1. G.703 provides specifications for pulse code modulation (PCM) at a bandwidth of 64 kbps (+/- 100 ppm). Multiplying the base unit produces data rates of 1.544 Mbps for T1 and 2.048 Mbps for E1. Typically, G.703 is used to interconnect data communications equipment (DCE) such as multiplexers.
 
   G.704
  		     G.704 is the framing specification for G.703. It allows a carrier to “steal” a 64 kbps time slot (TS0) from a 2.048 Mbps line and provide timing. This leaves 31 time slots for the data, an amount which equals a bandwidth of 1.984 Mbps. G.703 lines with G.704 framing are called Structured G.703 lines. Typically, carriers offer G.704 for networks that are built-up on a cross-connect basis. Unstructured G.703 is used with multiplexer-based infrastructures.
 
   Parallel
  		     Parallel interfaces can handle multiple bits transmitted at the same time.
 
   RJ-45
  		     RJ-45 connectors resemble standard telephone connectors, but are twice as wide with eight wires. RJ-45s are used to connect personal computers (PCs) to local area networks (LANs), and for phones with lots of lines. 
 
   RS232
  		     RS232 is a serial interface approved by the Electronic Industries Association (EIA). RS232 uses two-way transmissions and is common in low-end professional and consumer equipment.
 
   RS422
  		     RS422 is a standard serial interface that supports multipoint connections. By contrast, RS423 supports only point-to-point connections.
 
   RS485
  		     RS485 is similar to RS232, but uses three-way instead of two-way transmissions. RS485 is often used in applications where a single controller must control multiple devices. Up to 64 devices may be connected under RS485.
 
   USB
  		     Universal serial bus (USB) is the standard serial bus for low-to-medium speed peripheral-device connections to personal computers (PCs) and keyboards, mice, modems, printers, joysticks, audio functions, monitor controls, etc.
 
   V.24
  		     V.24 is an ITU-T standard that defines the interchange circuits between data terminal equipment (DTE) and data communication equipment (DCE). The ITU Telecommunications Standardization Sector (ITU-T) coordinates telecommunication standards on behalf of the International Telecommunications Union (ITU).
 
   V.35
  		     V.35 is a partially balanced, partially single-ended interface specification. It is an ITU-T standard for data transmission at 48 Kbps over 60 to 108 KHz group-band circuits. V.35 contains the 34-pin V.34 connector specifications normally implemented with modular RJ-45 connectors.
 
   X.21
  		     X.21 is a digital signaling interface recommended by the ITU-T. It includes specifications for DTE/DCE physical interface elements. X.21 supports data transfer at up to 2 Mbps; however, the most commonly used transfer rate is 64 kbps.
 
   Other
  		     Other unlisted interface port types.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Features
   Remote Control Port?
  		     The device can be controlled or programmed remotely by connecting a computer, modem, or other device to the remote port.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Printer Port?
  		     The device has a port for a printer.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Indicators?
  		     The device uses light-emitting diodes (LEDs) to indicate power, the presence of a clock and data, sync loss (synch), and error counting.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   External Clocking?
  		     The unit can be clocked externally by connecting a timing device.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Customized Pattern Testing?
  		     The user can program the unit for custom made patterns and procedures for repeatable testing.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Wireless?
  		     The device is used to test wireless systems.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Software Included?
  		     Test software is included with the device.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
Standards and Certifications
   RoHS Compliant
  		     Restriction of Hazardous Substances (RoHS) is a European Union (EU) directive that requires all manufacturers of electronic and electrical equipment sold in Europe to demonstrate that their products contain only minimal levels of the following hazardous substances: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl and polybrominated diphenyl ether. RoHS will become effective on July 1, 2006.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   WEEE Compliant
  		     Waste Electrical and Electronics Equipment (WEEE) is an EU directive designed to encourage the reuse, recycling and recovery of electrical and electronic equipment. WEEE establishes the requirements and criteria for the collection, treatment, recycling and recovery of this equipment. WEEE also makes producers responsible for financing these activities. Retailers and distributors must provide a way for consumers to return used or obsolete equipment without charge.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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