LDC EQUIPMENT VMS 1C, Operation And Programming

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VMS 1C and 5C Operation Manual - Version 2.0 Page 3 of 42
8.Standards Compliance ............................................................................................................. 35
8.1 AS 4852.2 – 2009 35
8.2 RMS/ RTA Specification TSI-SP-030 35
9.Spare Parts Listing .................................................................................................................... 36
10.VMSC
– Specifications ............................................................................................................ 37
11.Disclaimer ............................................................................................................................... 37
12.Appendix A. SMS Graphics ..................................................................................................... 38
13.Appendix B. Pre-set Messages ............................................................................................... 40
14.DOCUMENT REVISION HISTORY: ........................................................................................... 42
1.1 Definitions
Daylight Saving Time (DST)
Also known as summer time, this is the practice of advancing clocks so that evenings
have more daylight and mornings have less. Typically, clocks are adjusted forward one
hour near the start of spring and are adjusted backward in autumn.
Device ID
Device ID is a distinctive number associated with any VMS.
Emitter
The basic light-emitting component used. This can be a single LED, or a cluster of LEDs
bound together and energized as a single component.
FTP
File Transfer Protocol (FTP) is a standard network protocol used to transfer files from
one host or to another host over a TCP-based network, such as the Internet.
LOG
Computer data logging is the process of recording events; with a computer program
usually application software in a certain scope in order to provide an audit trail that
can be used to understand the activity of the system and to diagnose problems.
Message
A series of frames constituting a single message.
Message ID
Message ID is a text identifier for a VMS message.
Pixel
For any given font on any given sign, the smallest switched unit from which active
messages are created. It may consist of a single emitter or multiple emitters switched
simultaneously.
Screen
Any stable state displayed on a variable message sign (VMS) unit that is preceded by
and followed by a change of state. It will typically consist of text, symbols, a
combination of the two, or a blank display.