NR BRS-SM 404 ISSUE E PDF

Published Date: 09/04/2021

Signal Maintenance Testing Handbook: Relocate a TPWS Buffer Stop Arming Loop

Published Date: 06/04/2005

Lineside & on Track Equipment Typical Circuits AWS Inductor Circuits: SSI

Published Date: 06/05/2021

National Operating Procedure (NOP) 4.19: Station Incident Response and Event Plans

Published Date: 02/01/2001

Signalling Maintenance Work Instruction Points

Published Date: 01/01/1991

Addendum 1 to ANSI/NCITS X3.100-1989, Interface Between DTE & DCE for Packet Mode Operation with Packet Switch Data Communications Networks - NUI and NUI-Derived Facility Extensions (formerly ANSI X3.100-1989(R1995) Add.1:1991)

Published Date: 01/01/1989

Interface Between DTE & DCE for Packet Mode Operation with Packet Switch Data Communications Networks (CCITT X.25) (formerly ANSI X3.100-1989(R1995)

Published Date: 01/01/1983

Unrecorded Magnetic Tape Minicassette For Information Interchange, Coplanar 3.81 mm (0.150 Inch) (formerly ANSI X3.103-1983(R1996))

Published Date: 01/01/1990

Specification for General Purpose Paper Cards for Information Interchange (formerly ANSI X3.11-1990(R2002))

Published Date: 01/01/1986

Matrix Character Sets for Optical Character Recognition (OCR-M) (formerly ANSI X3.111-1986(R1997))

Published Date: 01/01/1984

14-Inch (356 mm) Diameter Low Surface Friction Magnetic Storage Disk (formerly ANSI X3.112-1984(R1996))