• Combined T1 and datacom testing up to 1.5 Mbit/s
• Four interfaces in a single tester
• Powerful results storage and analysis without using a printer
• Histogram alarm/results presentation on the screen
• Rugged, portable and easy-to-use
• Autoconfigure, "trouble scan", and prestored setups, together with clear simple controls, make the tester easy to use.
• Full range of BER tests
• Performs timing analysis on interface control leads - with transition diagrams on the screen

Applications

• Leased T1 circuit installation and maintenance
• T1 circuit monitoring in central offices
• Acceptance testing and maintenance by T1 users

T1 Specifications

Full transmit and receive capability.

Receiver range - 6 to -36 dB DSX with equalization.

Framing - D4, ESF, SLC-96

Line codes - AM1, B8ZS

Test patterns -  2²³, 2²⁰, 2¹⁵ PRBS; QRSS, 3 in 24, 1:1, 1:7, 55 octet, 24-bit word.

Measurements -  Error performance based on BPVs, logic, frame and pattern errors; frequency, pattern slips, simplex current, level, round trip delay, pulse shape.

• Channel VF output including internal loudspeaker
• RS-232 remote control and printer interface

Datacom Specifications

Datacom interfaces -  RS-232, RS-449, V.35, DTE or DCE

Data rates -  600bit/s to 1.544 Mbit/s (synchronous, built-in synthesizer); 50 bit/s to 19.2 kbit/s (asynchronous)

RS-232 breakout -  patch points, monitors, voltage sources, and switches.

RS-449/V.35 -  activity indicators on data, clock, and control circuits.

Test patterns - 63, 511, 2047, 2¹⁵-1 PRBS, QRSS, (all invertible);  all ls, 1010..., 24-bit word, FOX message.

Measurements -  errors, BER, blocks, block errors, block error ratio, error seconds, % EFS, clock slips, alarms, Tx and Rx frequency, G821 analysis.

Transition diagrams - for MON, RTS, CTS, DTR, DSR, and DCD.