About Groups

The applications for 100-school Networking Project were either for group A or B. The applicants for group A were expected to dispatch information from themselves in the 100-school project. All others were invited to apply for group B. As the result of screening, some 30 schools were selected for group A and some 70 for B. Group A schools were equipped with 64 Kbps digital exclusive lines, and group B schools 3.4 KHz analog exclusive lines. (Except for the communication lines and devices in direct connection to them, there has been no difference in equipment between Groups A and B. No obligations or limitations have been set about information dispatch either. Virtually there has been little difference between the two groups except for the communication lines.)

There were some schools, most of them attached schools to universities, who need not new lines. These schools were put into the group according to their applications.

Communication Equipment at Group A Schools

Group A schools are connected to their NOCs with 64 Kbps digital exclusive lines.

The communication equipment which is necessary for this line type is a CSU (also called TA). CSUs are connected to routers using v.36 cables.

Communication Equipment at Group B Schools

Group B schools are connected to their NOCs with 3.4 KHz analog exclusive lines.

The communication equipment which is necessary for this line type is a modem. Modems of maximum possible speed (28.2 Kbps) are connected to routers using RS232C cables.

Venders and Equipment Delivered

Two separate tenders for the installation of communication lines, and for communication equipment were invited for each six blocks. The six blocks in all cover the whole nation. Followings are the results.

Venders by blocks

blocks	venders for lines	venders for equipment
Hokkaido-Tohoku	NEC	Showa Densen Denran Co.
Kanto	NTT	NTT
Hokuriku-Tokai	NTT	NTT
Kinki	Osaka Media Port Co.	NTT
Chugoku-Shikoku	NEC	NTT
Kyushu	NTT	NTT

Equipment Delivered