Intersystem Coupling Interface
Type of Change
Bell Atlantic Inter System Coupling ("ISC") Service provides high speed (1.0625 Gbps line rate) point-to-point transmission which can be used to interconnect hosts and peripherals. Examples of supported peripherals include: Direct Access Storage Devices (DASD), Tape Controllers, and Front End Processors (FEPs).
The ISC interface provides a private dedicated 1.0625 Gbps circuit, utilizing single mode fiber optics. The ISC interface provides for the interconnection of two customer locations within a given LATA.
The ISC interface is an IBM corporation product and is described within the following published specifications:
- Coupling Facility Channel I/O Interface Physical Layer, SA23-0395
- Enterprise Systems Architecture/390 ESCON I/O Interface Physical Layer, SA23-0394
- Coupling facility channel links are designed to be optically compatible with the FO or physical layer industry standard ANSI Fiber Channel Standard Physical and Signaling Interface (FC-PH), published by the American National Standards Institute 11 West 42nd Street, New York NY 10036
- The Open Fiber Control ("OFC") timing for 1.0625 Gbps links uses the same timingas specified in the ANSI standard for 266 Mbps links, which allows longer distances for gigabit links.
To obtain IBM documents contact:
IBM Publications Support CenterDate changes are to occur:
P.O. Box 29570
Raleigh, NC 27626-0570
Phone Orders: 800-879-2755
FAX Orders: 800-445-9269
Email Orders: US1B6FPL@IBMMAIL.com
Bell Atlantic plans to offer Inter System Coupling ("ISC") beginning in 2Q98
Locations changes are to occur:
The ISC Service will be offered as a Limited Service Offering in the New York Metropolitan LATA, subject to facilities availability. Pricing is to be subject to terms of contract.
Reasonably foreseeable impact of change:
CPE vendors who are interested in providing CPE for this service will need to meet the interface requirements
Bell Atlantic Contact:
For additional information on the ISC interface please contact:
Director - Fast Packet Services
1166 Avenue of the Americas, 3rd floor
New York, NY 10036