CECS 09-1989
Specification for design of SPC PABX engineering in industrial enterprises (English Version)

Standard No.

CECS 09-1989

Language

Chinese, Available in English version

Published By

Professional Standard - Recommended Standards for Engineering Construction

Latest

CECS 09-1989

Scope

This procedure applies to the new construction, expansion and reconstruction projects of program-controlled user telephone stations in industrial enterprises. For expansion and reconstruction projects, original facilities should be fully utilized based on actual conditions.

CECS 09-1989 history

• 1970 CECS 09-1989 Specification for design of SPC PABX engineering in industrial enterprises