ITU-T K.21 - Telecom Immunity Test Equipment
All Telecom Pulse Systems
Immunity Generator Rentals
All Surge Generators
1.2/50us Pulse Systems
ESD Simulators/Gunds
Rent & Buy Equipmnet
ECAT Systems Rentals
Keytek Immunity Systems
- 7 kV Surge, Ringwave, Telecom Surge, & 5.5 kV EFT
- Built-in single phase CDN Max 400 V/32 A AC or DC
- 400 Volt Model: bsprt-1-400-32
- 10x700µs and 9x720µs Waveforms
- Built-in Pulse Monitor
- Must be used with E103 Control Unit
- 6 kV Surge, 4.4 kV EFT, & 6 kV 100 kHz Ringwave
- Built-in CDN Max 250 V/16 A AC or 100 V/10 A DC
- Capabilities for Voltage Dips Testing
- 16.5 kV Air & 9 kV Contact Discharge (100 V Steps)
- Rechargeable Battery Powered ESD Simulator
- Built-in 150 pF/ 330 Ohm Network
Sale price
Monthly Rental - $590
- 30V Air & Contact Discharge (100V Steps)
- Color Touch Panel Control with Activity Log
- Auto Variation Includes 3 Automotive Networks
- 30V Air & Contact Discharge (100V Steps)
- Color Touch Panel Control with Activity Log
- Includes 150 pF/ 330 Ohm Network (INA 4380)
Sale price
Monthly Rental - $890
- 15 kV Air Discharge & 8 kV Contact Discharge (10V Steps)
- Rugged, Portable, and Self Contained ESD Simulator
- Meets Requirements of IEC 61000-4-2 & ANSI C63.16
- 30 kV Air & Contact Discharge (100V Steps)
- Rechargeable Battery Powered ESD Simulator
- Includes 150 pF/ 330 Ohm Network (INA 4380)
Sale price
Monthly Rental - $990
- 16 kV Air & 10 kV Contact Discharge (10 V Steps)
- Light Weight Ergonomic Design
- 150 pF/ 330 Ohm Network Installed
- Contact Discharge Tip for Teseq NSG 435
- Attaches to Front of Simulator
- Manufacturer Part Number TIP16 CD
Sale price
Buy New -
$450
- Contact Discharge Tip for Teseq NSG 435
- Attaches to Front of Simulator
- Manufacturer Part Number INA 424
- Rechargeable Battery Pack for the NSG 435
- Confirm Compatibility with Existing Charger
- Manufacturer Part Number INA 405
Sale price
Buy New -
$650
- 30 kV Air & Contact Discharge (100V Steps)
- Rechargeable Battery Powered ESD Simulator
- Auto Variation Includes 3 Automotive Networks
- Fast Rise Time Tip for NSG 437/438
- Attaches to Front of the Unit
- 30V Air & Contact Discharge (100V Steps)
- Rechargeable Battery Powered ESD Simulator
- Includes 150 pF/ 330 Ohm Network (INA 4380)
- Contact Discharge Tip
- Designed for Teseq NSG 437 & NSG 438
- Attaches to Front of the Simulator
Description
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
Overview
ITU-T K.21 by the International Telecommunication Union is part of series K which is based on protection against interference (EMI). This Telecommunications Standard puts forth immunity requirements and test procedures for equipment attached to or installed on customer's premises. Overvoltages and overcurrents can occur from a variety electrical occurrences including surges, electrostatic discharge ESD, and many others. This most recent 2017 version of ITU-T K.21 has several major changes from the previous 2008 and 2011 versions. This telecom standard can be downloaded from the International Telecommuncations Union Website. This standard often references other ITU-T standard including ITU-T K.11, ITU-T K.39, ITU-T K.44, and ITU-T K.66.
Testing
Testing for lightning tests are based on a 10x700µs and an 8x20µs waveform. The testing criteria for this section of the telecom standard are separated based internal cables and external ports. This will determine a number of factors required for ITU-T K.21 testing including test circuit and waveform, basic test level, enhanced test level, number of tests, and others. ITU-T K.21 also includes an electrostatic discharge or ESD component to testing. Table six within this standard specifies the test circuit and test levels to those of EN IEC 61000-4-2.
Equipment
We offer EMI Immunity test equipment rentals from EMC Partner, EM Test, Teseq, and Thermo-Keytek. For the surge lightening component of the standard we offer rentals of the ECAT E502B providing the required 10x700µs. This ECAT module can be rented individually or as a combination with E103 as a telecom surge test system. These reliable ECAT modules allow for easy upgrades and can be added to a preexisting ECAT system. For the ESD component of it we offer rentals of several different ESD simulators to meet any customer requirements or preferences. All of our ESD simulator products come with an A2LA accredited calibration and technical support included with the rental.
