Site's Atcs Address; Mcf Crc; Sntp; Additional Data - Siemens VIU-20 Installation And Instruction

VIU WEB BROWSER USER INTERFACE
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7.3.10.5

Site's ATCS Address

Site ATCS Address is one of the vital parameters. Edit Mode must be selected before a change
can be made. When done, the correct UCN must be entered and the Vital Core rebooted to
remove the VIU from Edit Mode (this reboots the Vital Core only, and not the entire VIU).
Site ATCS Address range: 7.000.000.000.00 – 7.999.999.999.99 (default is 7.620.100.100.03).
7.3.10.6

MCF CRC

MCF CRC is one of the vital parameters. Edit Mode must be selected before a change can be
made and the vital CPU must be rebooted in order to get out of Edit Mode. This reboots the vital
CPU only and not the entire VIU.
The MCF CRC is determined by the MCF contents.
7.3.10.7

Additional Data

The Site Info screen also reports the following values: PTC UCN, and CCN. These values are
only reported here and cannot be edited on this screen.

7.3.11 SNTP

SNTP stands for the Simple Network Time Protocol. SNTP is used to synchronize the VIUs to a
network time source.
SIG-00-07-11
Version No.: B.2
VERIFY THAT VIU-20 IS PROGRAMMED AS SPECIFIED BY THE
RAILROAD'S OR AGENCY'S WITH THE CORRECT MCFCRC,
UCN, ATCS SITE IDENTIFICATION NUMBER (SIN). FAILURE TO
DO SO MAY LEAD TO INCORRECT OR UNSAFE INDICATIONS
ON THE VIU-20 UNIT.

Figure 7-34 SNTP Configuration Screen

WARNING
7-26
SEPTEMBER 2012 (REVISED OCTOBER 2019)