Feature: 1. EASY TO USE HANDHELD DESIGN: Features convenient operating with high resolution color backlit TFT LCD display for accurate readings. 2. CUSTOMIZABLE SETTINGS: Save or recall 7 user defined configurations and 7 result groups for efficient testing and analysis. 3. AUTOMATIC TIMER CONTROL: The tester can schedule test runs and stops with the timer feature for automated operation. 4. SIGNAL ANALYSIS FOR ALARMS: The network analyzer identify and analyze alarm events with detailed listing for quick troubleshooting. 5. VERSATILE DIGITAL NETWORK TESTER: Specifically designed for channel testing, alarm analysis, fault location, and signal analysis in digital networks. Specification: Item Type: Bit Error Rate Tester Material: ABS Battery: Rechargeable Li Battery x 1 Battery Capacity 4000mAh [Comes with built in battery] Working Time: 5 hours Charging: 3 hours when turned off; 12 hours when turned on Interface Support: E1 Link, compliant with G.703(E1) testing function (75, 120 ohms) Testing Rate: 2.048Mbps, N (continuous) and M (non continuous) x 64Kbps (N and M=1 to 31); insert, extract N or Mx64kbps; Frame Type: Unframed, PCM 30, PCM 30c, PCM 31, PCM 31c, compliant with ITU T G.704; supports automatic frame structure detection Line Coding: HDB3 and AMI Sending End: Internal Clock: 2.048MHz±5ppm; receive Line Coding: HDB3 and AMI; Pulse Shape: Compliant with for ITU T G.703 Error Insertion: BIT, CODE, BIT and CODE; single or 1x10-1 to 1x10-7 rates; Receiving End: Frequency Range: 2.048Mbps±8000bps; Return Loss compliant with ITU T G.703; Jitter Tolerance compliant with ITU T G.823; Measurements: E1 Receive Frequency Measurement E1 Receive Signal Level Code BPV Errors (error count and rate) Frame Errors (FAS, MFAS, and CRC 4 error count and error rate) LOS, SVnc Loss, LOF, AIS, FAS, RAI, and MFAS second count G.821 Analysis, G.826 Measurement, M.2100 Measurement and E bit error count and rate. Automatic Frame Structure Detection . Package List: 1 x Tester 1 x Plug 3 x Connecting Cable 1 x Strap 1 x Storage Box 1 x User Manual