Major Features
• LCD large-screen display, 320*240 lattice, backlight, LED indication
• Hand held, auto configuration
• Multi-task operation at one time
• Store 20 test results and 9 test configurations, with power-off memories
• PC operation, store, analysis, print
• Programmable timer
• Alarm and histogram analysis
• Software updating
Major Functions
For 2Mbit/s:
• Service-interrupted error testing
• Online error testing
• Framed and unframed signals generating and receiving
• 2Mbit/s unframed error performance testing
• 2Mbit/s framed N×64kbit/s channel error testing
• Bit error, coding error, frame error, CRC error and E bit error testing
• Signal loss alarm, AIS alarm, framed remote alarm, multi-framed remote alarm, out-of-frame, and pattern loss alarm
• Frequency offset testing
• Line signal level and frequency testing
• Voice channel signal level and frequency testing
• Pattern slip testing
• *Clock slip testing
• Straightforward signaling
• Audio frequency testing
• Loop circuit delay testing
• Automatic protection switching time testing (APS)
• *Clock bias function
• Sound monitoring
• *Duplex 2Mbit/s detecting and monitoring
• Signal state display. Voice channel content display. Voice channel busy indication
• Alarm and error histogram analysis
• Time slot content analysis, drop and insert signal on each time slot
• Framed content analysis
• *G.703 Template analysis
• G. 821/G. 826/M. 2100 error analysis
• Multi error and alarm inserting
• Three input modes (terminating, bridging and monitoring)
• Three clock options (internal, *external and picking-up)
• *Jitter testing function
• *Touch screen TFT color LCD (optional)

*Remak: The facilities marked with * are optional module.
For Datacom:
• V.24/RS232/V.28, V.35, V.36, X.21, RS-449, RS-485, RS422, EIA-530, EIA-530A datacom testing
• SYNCH and ASYNCH testing
• DTE and DCE emulation
• Bit code testing
• Pattern slip testing
• Signal loss alarm
• Line signal level and frequency testing
• Loop delay testing
• Automatic protection switching time testing(APS)
• G.821, M2100 service interrupt error testing
For Co-directional 64Kbit/s:
• Service interrupt error testing
• Bit code testing
• Pattern slip testing
• Signal loss, AIS alarm
• Line signal frequency testing
• Loop delay testing
• Automatic protection switching time testing(APS)
• G.821, M.2100 error testing
Technical Index
• 2Mbit/s Technical Index
(1) Signal input rate: 2048kbit/s  100ppm (G.703 requirement±50ppm)
(2) Signal code: HDB3, AMI.
(3) Input jitter tolerance: Up to the requirement of Figure 10.1.


Fig.10.1 Input Jitter Tolerance
(4) Input balance response: attenuation complies with the law of square root of frequency, and is within the range of 0 ~ 6dB at 1024 kHz.
(5) Input Impedance
(5.1) Unbalance terminating: 75
Balance terminating: 120
Reflection loss >18dB within 50Hz~3100kHz
(5.2) Unbalance bridging: >750
Balance bridging: >1200
(5.3) Unbalance monitoring: 75, 26dB gai