Masterclock TCDS Series, User Manual

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TCDS Series User Manual
– Rev. 2.0.1
Page 8
Introduction
The TCDS is a precision, multi-featured time code driven digital time display. The TCDS decodes IRIG-B
and SMPTE linear/longitudinal time code formats to function as a clock.
IRIG-B
Defined by the Range Commanders Council, U.S. Army White Sands Missile Range. The format is
used by military, government, power industry and many other commercial and industrial
applications. The TCDS decodes IRIG-B in both a 1 kHz modulated (IRIG-B1) and un-
modulated/pulse width coded/DC level shifted (IRIG-B0) format. All formats of IRIG-B time code
decoded by the TCDS use the time of year information BCD (Binary Coded Decimal). All formats
of IRIG-B time code decoded by the TCDS also use the extended year/date and time zone
information in the control functions as defined by the IEEE 1344 specification. SBS (Straight
Binary Seconds) information is not decoded. Manchester format/encoding is not supported.
The TCDS can be configured for world-wide time zone offset and automatic DST (Daylight Saving
Time) adjustment and allows for reliable, accurate and maintenance free operation. Use of the
automatic DST feature requires that the clock be enabled to accept the time code date encoding,
using the USB port and TCD-Set software application. The time code source must provide date
encoding in the control bits/fields to the Masterclock/Leitch date encoding standard for SMPTE or the
IEEE-1344 year encoding for IRIG-B.
SMPTE
Society of Motion Picture and Television Engineers format is available in frame rates of 24, 25, and 30
frames second. The TCDS time code clock supports all three formats. All formats of SMPTE time code
decoded by the TCDS use the full date information in the user bits as defined by Leitch, Inc.
The TCDS does not support decoding of SMPTE drop-frame, reverse running, VITC, NTSC,
color frame, blackburst or other video time code formats and synchronization options.
Please refer to the “Specifications” section of this document for additional details on
each model. For available options, visit Masterclock’s website: www.masterclock.com
Features
• Time or Date display
•
24 or 12 hour display mode
• DOY (Day of Year) on TCDS29
• AM/PM indicator (12 hour mode)
• +12 to -11 hour time zone offsets
•
Programmable time and date when time code not present
•
Automatic level adjustment to incoming time code signals
•
Automatic detection of time code type and date encoding availability
•
Retains time and date during loss of power and/or time code using a battery backed real-time
clock (RTC) and maintenance free rechargeable battery