Loopbacks

The SuperLooper™ Ethernet Loopback Jack and Plug quickly and easily checks the RX/TX pairs of 10/100base network cables, helping a network technician determine if a network signal exists or if there are broken or shorted wires within the cabling (See Specifications). It can be plugged directly into an Ethernet wall port or can be attached to the en ...more

The SuperLooper™ T1/E1 Loopback Jack and Plug quickly and easily checks the RX/TX pairs of T1/E1 circuit cables helping a network technician determine if a signal exists or if there are broken or shorted wires within the cabling. It can be plugged directly into a T1/E1 CSU/DSU or can be attached to the end of a network patch cable. ...more

The SuperLooper™ ISDN (BRI) Loopback Jack and Plug is used to check ISDN (BRI) cabling for broken or shorted wires and network interfaces for the simplest functionality. When installing primary network backbone circuits, the simple check of an ISDN (BRI) interface or jumper cable using the SuperLooper™ ISDN (BRI) Loopback Jack and Plug can save hou ...more

The JackRABBIT is special loop-back plug that supports high volume testing of network boxes with densely populated RJ-45 connections. ...more

The Gigabit SuperLooper quickly and easily checks the RX/TX pairs of 1000base network cables, helping a network technician determine if a network signal exists or if there are broken or shorted wires within the cabling (See Specifications). It can be plugged directly into an Ethernet wall port or can be attached to the end of a network patch cable. ...more

L-com’s 9/125 Singlemode fiber loop back cables provide an economical solution for a number of fiber optic test applications. These loop back cables offer a generous yet manageable fiber loop virtually eliminating bend loss. ...more

L-com’s 50/125 Multimode fiber loop back cables provide an economical solution for a number of fiber optic test applications. ...more

Creates Handshaking for DB25 or DB9 Serial Ports. This handy loopback tester comes complete with DB9 and DB25 female connectors to interface with any PC serial port. Useful for diagnosing problems with serial interfaces. ...more

L-com’s 50/125 Multimode fiber loop back cables provide an economical solution for a number of fiber optic test applications. These loop back cables offer a generous yet manageable fiber loop virtually eliminating bend loss. ...more

This slimline loopback testers can help diagnose problems with serial interfaces. ...more

L-com’s 62.5/125 Multimode fiber loop back cables provide an economical solution for a number of fiber optic test applications. These loop back cables offer a generous yet manageable fiber loop virtually eliminating bend loss. ...more

The StarTech.com Advanced RJ45 LAN Cable tester allows a single person to test several long cables faster and more efficiently than ever before. The tester uses remote loop-back plugs that each have their own unique ID number that the tester can identify. If several cables need to be tested, the user simply puts a loop-back plug on the end of ...more

L-com’s 50/125 Multimode fiber loop back cables provide an economical solution for a number of fiber optic test applications. ...more

L-com’s 62.5/125 Multimode fiber loop back cables provide an economical solution for a number of fiber optic test applications. These loop back cables offer a generous yet manageable fiber loop virtually eliminating bend loss. ...more

Emulates a Parallel Device for Your Testing Needs, DB25 Male Connector. This handy loopback tester is equipped with a DB25 male connector to interface with any PC parallel port. ...more

The StarTech.com Professional LAN Installation Tool kit provides all the necessary tools to install and test RJ45 networks in a compact, handy, carrying case. Tools included are: a RJ45/11 Crimp tool, a 110/66 Impact Punch Tool, a wire stripper, several RJ45 connectors, and a RJ45 network cable tester with remote loopback plug (same as the StarTech ...more

L-com’s 50/125 Multimode fiber loop back cables provide an economical solution for a number of fiber optic test applications. These loop back cables offer a generous yet manageable fiber loop virtually eliminating bend loss. ...more

L-com’s 62.5/125 Multimode fiber loop back cables provide an economical solution for a number of fiber optic test applications. These loop back cables offer a generous yet manageable fiber loop virtually eliminating bend loss. ...more

L-com’s 9/125 Singlemode fiber loop back cables provide an economical solution for a number of fiber optic test applications. ...more

Your first line diagnostic tool, developed for the most thorough diagnosis of PC hardware problems. With more than 300 total diagnostic tests, PC-Doctor Service Center 6 is the most complete and accurate hardware diagnostic product on the market. PC-Doctor Service Center 6 supports Microsoft Vista natively. More than 300 current, up-to-date diagnos ...more

The 764A Integrated T1/FT1 Test Set is designed to accommodate complete T1 testing functions in a single hand-held, light weight test set package. The functions include a library of BERT test patterns and comprehensive loopback controls. Complete CSU/DSU functionality with an integral DCE interface, including comprehensive fractional T1 testin ...more

The IP405 controls up to 40 low-side switches (open-drain MOSFETs). Operation of this module is very simple. Writing a ?0? bit to a channel data register opens the switch to turn off a field device. Similarly, writing a ?1? bit closes the switch to turn on the device. Each register can be read back to verify the value. Loopback monitoring of cr ...more

The IP400 can monitor the on/off (high/low) status of up to 40 devices. Loopback monitoring of critical control signals is easily accomplished with the IP400 by reading the output states of Acromag?s IP405 Output Module. The two modules share the same field interface pinouts for direct loopback compatibility. ...more

FEATURES: DC TO 19.2 KBPS; Optically Isolated; TD & RD LED's; Loopback Switch; Built-In Surge Protection; Male or Female Connectors; Screw Terminals and RJ-11. The Model 72A Optically Isolated Line Driver links RS-232 based devices over extended distances. It provides optical isolation and has built-in verification of operation using a loopback swi ...more

The RT Logic Telemetrix® Signal Emulator System (T400SE) provides a flexible, programmable platform for simultaneuously emulating 8 or more carriers at the standard SATCOM uplink and downlink frequencies for C-, X-, and Ku-bands. APPLICATION: Performance Testing, Training Satellite Simulation, Communication Link Simulations, BER Loopback Testing. ...more