Detailed Product Description

General

GQ-4100A Series  2M Transmission Analyzers is mainly used for measuring of the error rate of data communication and for the analysis of line fault and causes, and very suitable for the parameter measurement and routine maintenance testing of 2M system, N×64K communication channels.

Major Features

·English menu. Large screen. Easy operation.

·Multitask operation (It is allowed to conduct a test while browsing previous records).

·As many as 9 test settings and 20 groups of test results can be stored, and kept in memory in the event of power failure. .

·Communication with a PC is available to allow test data storage, analysis and printing to be carried out on the PC, or directly connected to a micro printer.

·The instrument can be powered on or off at certain times for testing purpose.

·Column diagram analysis of alarms and error codes;

·Software updating online.

Major Functions

·Service-interrupted error code testing;

·Error code testing online;

·Framing and non-framing signals generation and reception;

·2 Mbit/s non-framing error code performance testing;

·2 Mbit/s framing N×64kbit/s channel error code performance testing;

·Performance testing of bit error, coding error, frame error, CRC error and E bit error;

·Alarm testing of signal loss, AIS alarm, frame remote alarm, multiframe remote alarm, out-of-frame, and out-of-pattern synchronism

·Frequency swing testing;

·Line signal level testing;

·Speech channel signal level and frequency testing;

·Pattern slip testing;

·Straightforward signaling

·Audio frequency testing;

·Loop circuit time lag testing;

·Automatic protection switching time testing (APS);

·Sound monitoring;

·Signaling state display. Voice channel content display. Voice channel busy indication;

·Column diagram analysis of alarms and error codes;

·Time sot content analysis;

·Frame content analysis;

·G. 821/G. 826/M. 2100 error code performance analysis;

·Several kinds of error code and alarm insertion;

·Three input modes (terminating, bridging and monitoring);

·Two clock options (internal and picking-up);

·RS-232 interface for printing result;

·Equidirectional 64k testing;

·V.24/RS232, V.35, V.36, X.21, RS-449, RS-485, EIA-530 and EIA-530A data testing.

Technical Index

·2M Technical Index

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

(2) Signal coding: 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 to 6dB at 1024 kHz.

(5) Input Impedance

(5.1) Unbalance terminating: 75Ω

Balance terminating: 120Ω.

Reflection loss >18dB within 50Hz3100kHz.

(5.2) Unbalance bridging: >750Ω

Balance bridging: >1200Ω

(5.3) Unbalance monitoring: 75Ω, 26dB gain

Balance monitoring: 120Ω, 26dB gain

Reflection loss >18dB within 50Hz3100kHz.

(6) Signal structure

(6.1) Non-frame structure

(6.2) Frame structure: PCM30, PCM31, PCM30CRC, PCM31CRC

Frame structure complies with the requirement of G. 704.

(7) Testing pattern: 2⁶-12⁹-12¹¹-12¹⁵-12²⁰-12²³-1, and artificial code

(8) Impedance of output interface:


(8.1) Non-balance 75Ω, up to G. 703

(8.2) Balance 120Ω, up to G. 703.

(9) External clock input

(9.1) Signal form: HDB3, NRZ

(9.2) Balance terminating resistance: 120Ω

Unbalance terminating resistance: 75Ω.

Balance bridging resistance: >1200Ω

Unbalance bridging resistance: >750Ω.

(10) Error code insertion: None, single, or ratio 10-1 ~ 10-7.

Other Parameters

·Power supply

(1) Special power adapter

Input: AC220V 50Hz

Output: DC 9V 1A

(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.

·Printer: μP40-TS(CH) Chinese character micro-printer with standard level and serial port.

·Dimension and weight

L×W×H: 200×160×42mm

Weight: 950g

·Ambient para meters

Operation temperature: 040

Storage Temperature: -30+70

Humidity: 5%90%, non-condensing.

Standard Configuration