Foreword

Thanks very much for purchasing and using the 6422 optical time-domain reflectometer produced by

CETI. With high, precision and frontier technologies comprehensive, the product enjoys the highest

quality and cost performances compared with similar products. The Company follows the ISO9000

standard always during production and adheres to the customer-oriented and quality-first principles.

Please read the manual carefully, so as to facilitate the operation. We will spare no efforts to meet your

requirements, providing you with operating devices with the highest cost performance and first-rate

after-sales services. We always adhere to the principle of “high quality and thoughtful services”,

providing customers with satisfactory products and services as well as work convenience and shortcut.

The hotline is shown below, and we are looking forward to hearing from you:

Tel +86-0532-86896691

Website www. ceyear.com

E-mail sales@ceyear.com

Address NO. 98 Xiangjiang Rd., Qingdao City, China

Postcode 266555

The manual introduces the application, performance and features, basic principles, usage, maintenance

and precautions of the 6422 optical time-domain reflectometer, facilitating your quick understanding the

usage and key points of the tester. To operate the product well and provide you with higher economic

effectiveness, please read the manual carefully.

Mistakes and omissions can hardly be avoided due to time urgency and writer’s knowledge limit. Your

valuable comments and suggestions are highly welcome! We are sorry for any inconvenience caused

due to our errors.

Note:

The manual is the first edition of the 6422 optical time-domain reflectometer,

with version number of A.1.

The manual contents are subject to change without prior notice. The right of

term interpretation in the manual belongs to China Electronics Technology

Instruments CO., LTD.

The manual copyright belongs to CETI, no modification or manipulation can be

made to the manual contents by any unit or person without approval of the

Company, or any copy or propagation of the manual made for profit. China

Electronics Technology Instruments CO., LTD retains the right of pursuing legal

responsibilities from any infringer.

Writer

August 20, 2018