GQ-4300D Series 2M Datacom Transmission Analyzers can be used to test the digital channels with 2Mbit/s interfaces and with V.24/V.28/RS232, V.35, V.36, RS449, X.21, RS485, EIA530, EIA530A, and equidirectional G.703 CO 64kbit/s interfaces.

Major Features

• LCD large-screen display, 320*240 lattice, backlight, LED indicator
• 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 generation and reception
• 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 module 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);

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