SERVICE ACCESS PROTOCOLS " ( REF . 43 : B/83 )
THE AIM OF THE PROJECT IS TO DEFINE THE SERVICES TO BE PROVIDED BY AN INTEGRATED TRAFFIC LAN AND TO DEFINE A STABLE , LAN-TECHNOLOGY INDEPENDENT INTERFACE BETWEEN DTE AND LAN ACCESS UNIT . THIS INTERFACE WILL COMPRISE THE PHYSICAL INTERFACE AND THE SERVICE ACCESS PROTOCOLS BY MEANS OF WHICH THE SERVICES CAN BE USED .
B-TYPE PROPOSALS ARE INVITED .
4.3.2 . TECHNOLOGY
ANY FORM OF INTEGRATED OFFICE WILL REQUIRE AN UNDERLYING COMMUNICATION INFRASTRUCTURE OF SUFFICIENT CAPACITY AND RELIABILITY TO CARRY ALL THE TRAFFIC ON AN INSTANTANEOUS ( OR FRACTIONAL DELAY ONLY ) BASIS . CURRENT ESTIMATES SUGGEST THAT CAPACITIES WELL IN EXCESS OF 100 MB/S WILL BE REQUIRED TO HANDLE INTER-COMPUTER , INTER-WORKSTATION AND INTER-CAD EQUIPMENTS . THEY WILL BE EXPECTED TO SUPPORT CONCURRENTLY SPEECH , DATA AND STATIC AND MOVING IMAGE .
BOTH CO-AXIAL AND FIBRE TECHNOLOGIES OFFER THE REQUIRED CAPACITY , BUT FIBRE OPTICS TRANSMISSION PROPERTIES ARE BETTER SUITED TO THE GB/S RANGE . FIBRE OPTIC TECHNOLOGY IS CURRENTLY EMPLOYED MAINLY FOR POINT TO POINT WORKING . IMPROVED TECHNIQUES ARE NEEDED FOR THE PASSIVE COUPLING OF EQUIPMENTS INTO A FIBRE LINK AND ALSO FOR THE SWITCHING ( OR ROUTING ) OF SIGNALS IN A NETWORK ARCHITECTURE , PREFERABLY BY OPTICAL SWITCHING TECHNIQUES . WITH THIS ACHIEVED , THERE SHOULD THEN BE SUFFICIENT CAPACITY HEADROOM ( MORE THAN 1 GB/S ) FOR FORESEEABLE FUTURE APPLICATIONS , LIMITED ONLY THEN BY CURRENT FIBRE OPTIC TERMINATION TECHNOLOGY .
. OPTICAL WIDEBAND LAN
IDENTIFY AND FORMULATE ARCHITECTURES AND STANDARDS FOR OPTICAL WIDEBAND LOCAL AREA NETWORKS , DEFINE THE DESIGN REQUIREMENTS OF VLSI CHIPS AND DEMONSTRATE THE FUNCTIONAL AND ECONOMIC FEASIBILITY .
PROGRAMME ( - ) AND INTERMEDIATE OBJECTIVES ( * ) :
YEARS 1 TO 5 :
- ARCHITECTURES AND PROTOCOLS FOR OPTICAL WIDEBAND LANS DEFINED .
* 3RD MONTH : SPECIFICATION OF ARCHITECTURES AND PROTOCOLS FOR OPTICAL WIDEBAND LAN'S .
- EXAMINE AND DESIGN TRANSMISSION AND INTERFACE EQUIPMENT FOR FIBRE OPTIC TECHNIQUES
* 12TH MONTH : SPECIFICATIONS FOR OPTICAL LAN TRANSMISSION TECHNIQUES .
- DEFINE THE DESIGN REQUIREMENTS OF VLSI CHIPS TO IMPLEMENT THE PROTOCOLS FOR NETWORK INTERFACING ; GUARANTEEING GOOD LEVELS OF RELIABILITY AND SECURITY .
* 18TH MONTH : SPECIFICATION FOR VLSI CHIPS FOR NETWORK INTERFACES .
- EVALUATE DEMONSTRATOR DESIGNS , CARRY OUT NECESSARY DEVELOPMENTS FOR DEMONSTRATOR
* 36TH MONTH : SPECIFICATION FOR DEMONSTRATOR .
* 48TH MONTH : IMPLEMENT DEMONSTRATOR TO SHOW FUNCTIONAL AND ECONOMIC FEASIBILITY IN AN OPERATIONAL IN-HOUSE ENVIRONMENT .
* 60TH MONTH : EVALUATION REPORT OF DEMONSTRATOR .
.1 . " LOCAL INTEGRATED OPTICAL NETWORK ( LION ) " ( REF . 169 : A/83 )
THE LION PROJECT AIMS AT IMPLEMENTING A WIDEBAND LOCAL AREA NETWORK BASED ON OPTICAL FIBRE TECHNOLOGY , WITH MAJOR APPLICATION IN THE OFFICE ENVIRONMENT , INCLUDING SUCH APPLICATIONS IN INDUSTRIAL RESEARCH LABORATORIES , UNIVERSITIES , HOSPITALS AND MANUFACTURING PLANTS . THE LION WILL GUARANTEE MULTIPLE ACCESS TO A NUMBER OF INDEPENDENT USERS WITH THE