Model: MC-1-M (2U)
Doc. Ref. no. : - m05/om/101
Issue no. 14
Page 67 of 103
User’s Manual
Description
Number of
Characters
Character
Position
Range of
Value/Information
Code Identification
1
1
Capital T
Year in Century
2
2,3
0 to 99
Month
2
4,5
1 to 12
Day of Month
2
6,7
1 to 31
Day of Week
1
8
1 to 7
Hours
2
9,10
0 to 23
Minutes
2
11,12
0 to 59
GMT Marker
1
13
0 or 1
Validity Marker
1
14
0 or 1
CR [Carriage return]
1
15
Non displayable
character
LF [Line Feed]
1
16
Non displayable
character
Table 11.3: NGTS Time string format
11.2 Timing Output – IRIG-B / IEEE 1344 C37.118-2005
11.2.1 Introduction:
This section should help you with understanding, choosing and connecting the correct output from the
GPS Master Clock model MC-1-M to synchronize equipments, such as relays, breakers, meters etc.
Often, questions arise about how output port should be connected, and how to connect cabling between
model MC-1-M and the relay. Certain protective relays or digital fault recorders may use a different style
connector than available at model MC-1-M outputs. This section will help to answer some common
questions, like which type of cabling should be used? Coaxial or a twisted pair etc.
The steps involved in getting your devices synchronized to the model MC-1-M are fairly simple and
should not take long to complete. To expedite the process, make sure that you know:
1. The type of timing signal each piece of equipment requires, and
2. How to enable the equipment to receive the timing signal.
Various methods are used to configure equipment for IRIG-B including setting a physical jumper, or setup
program. Some equipment can auto detect the timing signal, so that nothing else is required other than
connecting the cable.
11.2.2 Time Code Output:
This section will describe IRIG-B Time Code also availability of the same in model MC-1-M also
configuration for the same. GPS Master Clock model MC-1-M can generate different no of digital as well
as analog signals as described in this section. Model MC-1-M has also the facility to have optional card in
model. Optional cards will have the same IRIG-B Time Code output, as on the standard output port.
