Model: MC-1-DE
Doc Ref. No:-m05dom102
Issue No:-00
User’s Manual
Page 30 of 76
to get GPS lock will depend on start mode of GPS receiver whether GPS receiver is in Cold
start or Warm Start or Hot start mode.
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GPS Time Sync Unit MC-1-DE device provides relay contacts on its terminal at Front panel of
unit for GPS Lost and Watchdog output. Factory set configuration for relay contacts for all two
mentioned outputs is C-NO terminal.
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After time is available on serial terminal, watchdog relay contact gets energized after 5 to 6
seconds. Watchdog relay status indicates the healthy functionality of unit. If unit becomes
unhealthy, the watchdog relay output will be off after few seconds and watchdog LED in front
panel will be ON. It will maintain its output status till the unit regains its healthy status.
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If GPS Time Sync Unit MC-1-DE is in LOCK condition, GPS LOCK relay will be in energized
condition and GPS LOCK led on front panel will be ON.
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Additional event outputs (optional) are ON as per respective event time configured. Factory
setting of all additional event outputs (optional) are set as 60 seconds event time with 50 mil-
liseconds event ON period.
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Once unit is Power up, unit will start transmitting serial frame as selected in configuration or
by default NMEA frame on serial terminal located at front panel of unit. NMEA output com-
munication settings will be at 9600, 8, N, 1. NTP outputs will be at configured factory set fac-
tory IP address and will be active once NTP client request are received on particular NTP
port. IRIG-TTL output will be at TTL voltage level i.e. 0(low level) and 5V(high level) and
IRIG-AM (Amplitude Modulated) output will be available at 3.6Vpp
7.4 Basic Normal Run Mode Operation
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After unit is boot up completely all the outputs of unit i.e. event pulse outputs, IRIG, NTP and
serial time outputs will be available as per unit clock.
