GB/T 7620-1987 300 bits per second duplex modem standardized for use in the general switched telephone network

Standard Number: GB/T 7620-1987
Chinese:在电话自动交换网上使用的标准化300比特/秒全双工调制解调器
English:300 bits per second duplex modem standardized for use in the general switched telephone network

Effective Date:1987-11-01
Regulatory Authority:Ministry of Industry and Information Technology（通信）
Issuing Regulatory Authority:

Adheres to international standards:Y
PDF Downloadable:N

You can click the button below to purchase the PDF version, and we will send it to you via email.

Click below to buy the printed version. Shipped via FedEx within 7 days. Full refund if out of stock.

If you encounter the following issues, please click here to contact us, and we will do our best to assist you.
1. You cannot find the standard document you are looking for on our website.
2. You have found the standard document, but our page indicates that PDF download is not available.
3. You need to purchase our translated version.