491. Open systems interconnection: guide to operation of an X.25 interworking unit. (31st July 1990) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
492. S5/8 serial interface for the interconnection of data processing equipment. (31st October 1990) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
493. Specification for IEC 822 VSB: parallel sub-system bus of the IEC 821 VME bus. (30th March 1990) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (160 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
494. Guide to DTE/DCE interface control operation using the 25 pole connector. (31st October 1990) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
495. Information processing systems. Fibre Distributed Data Interface (FDDI). Token Ring Physical Layer Protocol (PHY) Part 1, (15th February 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (42 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
496. Information technology. Data communication. 15-pole DTE/DCE interface connector and contact number assignments. (31st December 1990) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (28 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
497. Information technology. Data communication. 37-pole DTE/DCE interface connector and contact number assignments. (31st December 1990) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (28 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
498. Information technology. Data communication. 25-pole DTE/DCE interface connector and contact number assignments. (31st January 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
499. Information technology. Intelligent Peripheral Interface. Device specific command set for magnetic disk drives Part 2, (1st February 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (66 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
500. Information processing systems. Small Computer System Interface (SCSI). (28th June 1991) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (184 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗