ST-2120 E1 Service Tester

ST2120 E1 service tester, a powerful handheld instrument, providing a scalable, future-proof solution for the testing needs of technicians involved in the installation and maintenance of E1 digital networks. It offers all the error and alarm measurements you will need to verify quality-of-service in your networks. Plus, signal quality measurements including frequency, level and other functions to ensure your costly, time-consuming work performed quickly and efficiently.

Basic Functions

• 120з and 75з line interfaces
• HDB3 and AMI line codes
• Out-of-service framed and unframed testing
• 2Mb/s, N】64Kb/s BER testing
• Frame data and alarm monitoring
• Clock slip measurement
• In-service framed and unframed testing
• Hi-Z and through mode testing
• CODE, FAS, CRC4, E-BIT BER testing
• Frame data and timeslot activity monitoring
• Built-in 64kb/s tone channel listen capability
• CAS and CCS signaling monitoring
• Round trip delay measurement
• APS delay measurement
• PCM simulator
• Extensive alarm generation
• Frame data control and monitoring
• Idle word timeslot insertion
• VF tone generation and measurement
• CAS and CCS signaling generation and monitoring
• Frequency, offset and level measurement
• Up to 【999ppm transmit clock deviation
• Testing pattern: PRBS, Fix Code, 16-BIT User Word
• Error injection: Single and Fixed Rate
• Real-time transmit circuit open/short indication
• Manual and auto-timer measurement
• G.821, G.826, and M.2100 performance analysis

Main Features

• Handheld design and easy-to-use
• High resolution backlit LCD
• Smart navigation mode displays
• Self-check and keyboard testing function
• Extensive error and alarm generation, detection and indication
• Histograms analysis of alarm and error events
• Up to 99 days continuaous test performance
• Save/Recall of up to 7 user-defined setups and 10 sets of results
• Up to 6 hours operation from a single battery charge
• Built-in NiMH rechargeable batteries and smart charger circuit
• Can be charged with automobile cigarette lighter battery adapter
• Upgradeable software via an integrated USB interface
• Test results uploaded, conserved and printed by TestManager software.

Configuration List

Specifications