E1 datacom interface 2M tester

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
• Store the test results to PC for analysis and printing
• Automatically power on/off for testing by programmable timer
• Alarm and histogram analysis
• Software updating

Major Functions

Normal test

Direct connection mode

Audio frequency test

• 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
• Voice channel signal level and frequency testing
• Pattern slip testing
• Straightforward signaling
• Audio frequency testing
• Voice monitoring
• Signal state display. Voice channel content display. Voice channel busy / idle indication
• Alarm and error histogram analysis
• Time slot content analysis, drop and insert signal on each time slot
• Framed content analysis
• G. 821/G. 826/M. 2100 error analysis
• Multi error and alarm inserting
• Three input modes (terminating, bridging and monitoring)
• Two clock options (internal and picking-up);

Technical Index

(1)       Signal input rate: 2048kbit/s ± 50ppm (G.703 requirement±100ppm)

(2)       Signal code: HDB3, AMI.

(3)       Input jitter tolerance: G.823

Fig.10.1 Input Jitter Tolerance

(4)       Input Impedance

(5.1) Unbalance terminating: 75Ω

Balance terminating: 120Ω

(5)        Signal structure

(5.1) Unframed structure

(5.2) Framed structure: PCM30, PCM31, PCM30CRC, PCM31CRC

Framed structure complies with the requirement of G. 704

(6)       Testing pattern: 2⁶-1, 2⁹-1, 2¹¹-1, 2¹⁵-1, 2²⁰-1, 2²³-1, and artificial code

(7)       Error code insertion: Bit error, Pattern slip, None single, Ratio 10^-1~10^-7.

Other Parameters

• Power supply

(1)       Special power adapter

Input: AC220V 50Hz

Output: DC 9V 1.2A

(2)       Internal rechargeable battery

4000mAh, 6V nickel-hydrogen rechargeable battery

Working time: 8 hours

Charging: 8 hours at power-off state, and 12 hours at power-on state

• Dimension and weight

L×W×H: 220×162×48mm

Weight: 950g

• Ambient parameters

Operation temperature: -10~50°C

Storage Temperature: -30~+70°C    

Humidity: 5%~90%, non-condensing