Imagine ADC-A12C31 User manual

Delivering the Moment
ADC-A12C31
Master Clock
Revision A
P061-0024
Installation and Operation
Manual

© 2014 Imagine Communications Corp. Proprietary and Confidential
Publication Information
© 2014 Imagine Communications Corp. Proprietary and Confidential.
Imagine Communications considers this document and its contents to be proprietary and confidential. Except for
making a reasonable number of copies for your own internal use, you may not reproduce this publication, or any
part thereof, in any form, by any method, for any purpose, or in any language other than English without the
written consent of Imagine Communications. All others uses are illegal.
This publication is designed to assist in the use of the product as it exists on the date of publication of this manual,
and may not reflect the product at the current time or an unknown time in the future. This publication does not in
any way warrant description accuracy or guarantee the use for the product to which it refers. Imagine
Communications reserves the right, without notice to make such changes in equipment, design, specifications,
components, or documentation as progress may warrant to improve the performance of the product.
Trademarks
Videotek® is a registered trademark of Imagine Communications or its subsidiaries. All other trademarks and trade
names are the property of their respective companies.
Contact Information
Imagine Communications has office locations around the world. For locations and contact information see:
http://www.imaginecommunications.com/contact-us/
Support Contact Information
For support contact information see:
Support Contacts: http://www.imaginecommunications.com/services/technical-support/
eCustomer Portal: http://support.imaginecommunications.com

ADC-A12C31 Operator’s Handbook Rev. A P. 2
Table of Contents
Forward ......................................................................................................................................... 5
Disclaimer..............................................................................................................................................................................5
Copyrights .............................................................................................................................................................................5
Trademarks ...........................................................................................................................................................................5
Icons Used In This Manual ....................................................................................................................................................5
Printing..................................................................................................................................................................................5
Compliance .................................................................................................................................... 6
CE Marking ............................................................................................................................................................................6
FCC Statement.......................................................................................................................................................................6
WEEE .....................................................................................................................................................................................7
RoHS......................................................................................................................................................................................7
Introduction................................................................................................................................... 8
IRIG-B ....................................................................................................................................................................................8
SMPTE ...................................................................................................................................................................................8
Features ................................................................................................................................................................................8
General Use Precautions ................................................................................................................ 9
Unpacking and Installation ........................................................................................................... 10
Supplied (Ship Kit) ...............................................................................................................................................................10
AC Power.............................................................................................................................................................................10
Mounting.............................................................................................................................................................................12
Operating Environment ................................................................................................................ 14
Status LED ...........................................................................................................................................................................14
Correction Behavior ............................................................................................................................................................14
Hand Position ......................................................................................................................................................................15
Time Zone Offsets ...............................................................................................................................................................15
Daylight Saving Time ...........................................................................................................................................................15
Pre 2007 Standard –U.S.A. and Canada .........................................................................................................................16
Post 2006 Standard –U.S.A. and Canada........................................................................................................................16
EU Standard –European Union.......................................................................................................................................16
Freewheeling Accuracy .......................................................................................................................................................16
TCXO and RTC circuit.......................................................................................................................................................16
Maintenance-free Rechargeable Battery........................................................................................................................16
Configuration ............................................................................................................................... 18
DIP Switches........................................................................................................................................................................18
S1.1, S1.2, S1.3, and S1.4 ................................................................................................................................................19
S1.5..................................................................................................................................................................................19
S1.6..................................................................................................................................................................................19
S1.7 and S1.8 ...................................................................................................................................................................20
S2.1 and S2.2 ...................................................................................................................................................................21
S2.3 and S2.4 ...................................................................................................................................................................21
S2.5..................................................................................................................................................................................21
S2.6..................................................................................................................................................................................21
S2.7..................................................................................................................................................................................21
S2.8..................................................................................................................................................................................21
Hand Calibration .................................................................................................................................................................22
Default Configuration..........................................................................................................................................................23
Reset Configuration to Factory-Default ..........................................................................................................................23

ADC-A12C31 Operator’s Handbook Rev. A P. 3
ADC-Set........................................................................................................................................ 24
Installation .......................................................................................................................................................................... 24
USB Device Drivers ............................................................................................................................................................. 25
Installing the Device Driver............................................................................................................................................. 25
Device Manager.................................................................................................................................................................. 25
Using ADC-Set, USB Configuration Utility ........................................................................................................................... 26
Time Zone Offset ............................................................................................................................................................ 27
Daylight Saving Time....................................................................................................................................................... 27
Time Code Settings ......................................................................................................................................................... 28
Set Date Time ................................................................................................................................................................. 29
Clock Hand Position ........................................................................................................................................................ 29
Sweep mode ............................................................................................................................................................... 30
Step mode................................................................................................................................................................... 30
To adjust the hands ........................................................................................................................................................ 30
Specifications ............................................................................................................................... 31
Communications I/O........................................................................................................................................................... 32
Power Requirements .......................................................................................................................................................... 32
AC.................................................................................................................................................................................... 32
Internal Battery Circuit ....................................................................................................................................................... 33
Maintenance Free Rechargeable Battery ....................................................................................................................... 33
Operating/Storage Temperature & Humidity..................................................................................................................... 33
Size and Weight .................................................................................................................................................................. 33
Troubleshooting ........................................................................................................................... 34
The time is incorrect. .......................................................................................................................................................... 34
Not displaying the correct [local] time. .............................................................................................................................. 34
Displayed time [local] is off a small amount....................................................................................................................... 35
DST is not properly negotiated. .......................................................................................................................................... 35
The clock hands are not moving and the red status LED is off. .......................................................................................... 35
Care and Cleaning......................................................................................................................... 36
Job Site Precautions............................................................................................................................................................ 36
Stainless Steel Case............................................................................................................................................................. 36
Compatible Cleaners & Polish............................................................................................................................................. 36
Washing to Minimize Scratching ........................................................................................................................................ 36
Minimize Hairline Scratches ............................................................................................................................................... 37
"Don't" - Very Important .................................................................................................................................................... 37
Cleaning the Lens................................................................................................................................................................ 37
Foreign Substance Removal................................................................................................................................................ 37
ADC-A12C31 Service and Support ................................................................................................. 38

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ADC-A12C31 Operator’s Handbook Rev. A P. 5
Forward
Disclaimer
The material in this document is for information only and subject to change without notice. While
reasonable efforts have been made in the preparation of this document to assure its accuracy,
Imagine Communications Corporation assumes no liability resulting from errors or omissions in this
document or from the use of the information contained herein. Imagine Communications
Corporation reserves the right to make changes or revisions in the product design or the product
manual without reservation and without obligation to notify any person of such revisions and
changes.
Copyrights
Copyright © 2014 Imagine Communications Corporation, 1025 West NASA Boulevard, Melbourne,
Florida 32919-0001 U.S.A. All rights reserved. This publication supersedes all previous releases. No
part of this documentation may be reproduced in any form or by any means or used to make any
derivative work without permission from Imagine Communications Corporation.
Trademarks
Windows is a registered trademark of Microsoft Corporation. All other trademarks mentioned in this
manual are the property of their respective holders.
Icons Used In This Manual
Caution: This icon signifies a potential hazard, and gives tips on how to avoid them.
Important Information: This icon indicates to an important step that must be followed.
Technical Note: This icon describes technical terms and actions.
Helpful Hint: This icon suggests the general setup and practice.
Printing
While optimized for onscreen viewing, the pages of this manual are formatted for printing on
8 1/2” x 11” and A4 sized paper, giving you the option to print the entire manual or just a specific
page or section.

ADC-A12C31 Operator’s Handbook Rev. A P. 6
Compliance
CE Marking
Electromagnetic Compatibility 89/336/EEC ; 92/31/EC ; 93/68/EEC ; 2004/108/EC
Tested and Conforms to the following EMC standards :
EN61000-4-2:2000 (Electrostatic Discharge)
EN61000-4-3 (RF Immunity)
EN61000-4-4 (Fast Transient Common Mode)
EN61000-4-5 (Surge)EN61000-4-6 (RF Injection Common Mode)
EN61000-4-8: 1993 (Power Frequency Magnetic Field)
EN61000-4-11 (Voltage Dips)
EN61000-6-3:2001 (EMC Emissions Generic Commercial)
EN55022:1998+A1:2000 +A2:2003
CISPR22
EN61000-3-2:2000 (Harmonic Current Emission)
EN61000-3-3:1995 + A1:2001 (Voltage Fluctuations & Flicker)
Low voltage directive 2006/95/EC
Tested and Conforms to the following Safety standards:
EN60950-1:2001 (Safety of Information Technology Equipment)
FCC Statement
This device complies with Part 15 of the FCC Rules and found to comply with the
limits for a Class B digital device. These limits are designed to provide reasonable
protection against harmful interference in a commercial/residential installation.
Operation is subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation

ADC-A12C31 Operator’s Handbook Rev. A P. 7
WEEE
Waste Electrical and Electronic Equipment Directive (WEEE) 2002/95/EC
The ADC-A12C31 model is considered WEEE Category 9 (Monitoring and Control
Instruments Equipment) as defined by the WEEE Directive and therefore fall within
the scope of the WEEE Directive.
RoHS
Compliant
by
Exemption
Restriction of the Use of Certain Hazardous Substances Directive 2002/95/EC
The RoHS directive covers the same scope of electrical and electronic equipment
that are under the WEEE directive, except that Category 8, Medical Devices, and
Category 9, Monitoring and Control Instruments, which are under WEEE, are
excluded from the RoHS directive.
The time display product ADC-A12C31 falls under the category of Monitoring and
Control Instruments Equipment (Category 9 as defined in Annex 1A of WEEE
2002/96/EC Directive) which is excluded from the RoHS directive 2002/95/EC
(reference Article 2, paragraph 1) requirements.
These products are manufactured using lead in the soldering process as allowed
for items excluded from the RoHS directive. These units are RoHS Compliant only
in that they are excluded from the RoHS directive under Category 9, Monitoring
and Control Instruments.

ADC-A12C31 Operator’s Handbook Rev. A P. 8
Introduction
The ADC-A12C31 is a precision analog clock containing a stepper motor drive and advanced
microprocessor controlled electronics.
IRIG-B
Defined by the Range Commanders Council, U.S. Army White Sands Missile Range. IRIG (Inter-range
Instrumentation Group) is used by military, government, power industry and many other commercial
and industrial applications. The ADC-A12C31 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 ADC-A12C31 use the time of year information BCD (Binary Coded Decimal). All
formats of IRIG-B time code decoded by the ADC-A12C31 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 ADC-A12C31 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 ADC-Set (Clock Time Code Display) USB
Configuration Utility (i.e. Windows software application). The time code reference must
provide date encoding in the control bits/fields to 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 ADC-A12C31 time code clock supports all three formats. All formats of
SMPTE time code decoded by the ADC-A12C31 use the full date information in the user bits as
defined by the standard.
The ADC-A12C31 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.
Features
RTC (Real Time Clock) backup retains time during loss of power or reference.
Self-correcting hands once power and/or Time Code reference is established.
Time zone offsets
DST configuration.
TCXO (Temperature Compensated Crystal Oscillator) for +/- 1 min per year accuracy when
no reference available (freewheeling).
All configuration settings retained in non-volatile flash memory.
Second Hand with sweep or step option.
Self-correcting hands after loss of power and/or time code reference and DST changes.
Loss of LTC status LED on clock face, located at the 6 o’clock position.

ADC-A12C31 Operator’s Handbook Rev. A P. 9
General Use Precautions
Do not expose this clock to temperatures outside the range of 32˚ to 140°F (0˚to 60˚C). Placing your
device in an environment that is too cold or humid may damage the unit. Do not place heavy objects
on top of this clock or use excessive force on it. Never use benzene, paint thinners, detergent or other
chemical products to clean the outside of this clock. Such products will disfigure and discolor the
casing.
Please refer to the “Care and Cleaning” section of this document for details on cleaning and
recommended products.
The Image Communications Corporation warranty may be void as a result of the failure to
respect the precautions stated above.
Only qualified persons are authorized to carry out maintenance on this device. Read this Operator’s
Handbook carefully, and follow the correct procedure when setting up the device. Do not open your
Imagine Communications Corporation product or attempt to disassemble or modify it.
Never insert any metallic object into the clocks case, doing so increases the risk of electrical
shock, short circuiting, fire or personal injury.
Never expose your clock to rain or use it near water or in damp or wet conditions. Never
place objects containing liquids on or near this clock, as they may spill into its openings
increasing the risk of electrical shock, short circuiting, fire or personal injury.

ADC-A12C31 Operator’s Handbook Rev. A P. 10
Unpacking and Installation
Supplied (Ship Kit)
The list below is for illustration purposes. Refer to your sales order for actual items shipped.
ADC-A12C31 analog clock
Mounting bracket with retaining screw
CD-ROM (ADC-Set, USB Configuration Utility and Operator’s Handbook)
Power cord
ADC-A12C31
Powder coated steel case
12 hour faceplate with illumination
AC Power
The ADC-A12C31 is supplied with an IEC power cord.

ADC-A12C31 Operator’s Handbook Rev. A P. 11
Connect the 50 ohm (Ω) RG59 coaxial
cable (not supplied) to the BNC
connector, located on the back panel.
Insert the AC power cord into the IEC power
connector, located on the back panel.

ADC-A12C31 Operator’s Handbook Rev. A P. 12
Mounting
The ADC-A12C31 analog clock is designed for wall mount. Power and low voltage signal wiring should
be installed according to local electrical codes, so to access the back of the clock.
Do not route power or signal cables between the case and the wall (along the exterior of the
wall), which may pinch the power or signal cable and create a hazardous condition.
A mounting bracket is supplied which has been designed to fit on either a standard 2”x 4” or 4” x 4”
conduit box. Mount the bracket on the wall/conduit box, attach the time code cable and secure the
clock to the bracket using the supplied retaining screw.

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ADC-A12C31 Operator’s Handbook Rev. A P. 14
Operating Environment
The ADC-A12C31 clock contains a stepper motor and microprocessor control electronics designed to
operate indoors between 32˚to 140°F (0˚to 60˚C) with 0-90% relative humidity, non-condensing.
The ADC-A12C31 is not water or moisture proof. Treat it as you would any other delicate
electronic device and do not expose it to water, excessive heat or physical abuse.
Operation
After applying power, the clock will go through an internal check. Time from the RTC backup will be
applied until a Time Code reference is acquired.
During this period the red status LED will be on solid and the hands will move in either a clockwise or
counter clockwise motion.
Status LED
The red LED on the ADC-A12C31 clock face, located at the 6:00 indicates;
LED STATE
STATUS INDICATION
Off
The clock acquired valid time code and has synchronized its internal
RTC to the time code reference. The internal clock time is considered
accurate. The clock hands may be adjusting/correcting rapidly either
clockwise or counter-clockwise during a correction.
On Solid
The clock is not able to decode the time code reference or the
reference is not present. Time displayed on the face of the clock is
based upon internal and TCXO and should not be considered
accurate.
Correction Behavior
The correction cycle engages when there’s a change to the internal RTC as compared to the time
code reference.
1. While acquisition of Time Code.
Initial startup
After loss of power
After loss of Time Code
2. Change to the clocks configurations.
DIP switch settings
ADC-Set configuration utility
Reset Device

ADC-A12C31 Operator’s Handbook Rev. A P. 15
Hand Position
The hands will set (adjust) to the time code reference, plus any time zone and/or DST offsets.
If for any reason the clock hands become slightly out of alignment, a calibration setting function has
been provided in ADC-Set configuration utility or using the buttons located on the back.
The hands of the ADC-A12C31 cannot be set manually. Do not attempt to open the clock to
access the hands. This action will void your warranty. This device has no user serviceable
parts inside.
The ADC-A12C31 series can be configured using one of the following methods:
DIP Switches and buttons.
ADC-Set, USB Configuration Utility via the USB port.
Please refer to the “Configuration” section of this document for additional details on
how to adjust the settings.
If the configuration software is used to configure the clock, the DIP switch settings will
be ignored. In order to restore the configuration mode to the use of the DIP switches,
the unit must be reset to factory default. (As shown on page 22)
Time Zone Offsets
All time code analog clocks maintain time as UTC.
A time zone offset can be used to adjust the time for display purposes. The can be set as a positive (+)
offset indicating that the unit leads the UTC time or negative (-) offset value indicating the unit lags
behind UTC time. An offset with a resolution of one half hour (via DIP switches) or 1 second (via ADC-
Set configuration utility) can be achieved.
If the time code input to the ADC-A12C31 is not UTC, do not adjust the time zone and/or
DST offset.
Daylight Saving Time
An automatic DST setting can be configured separately and in addition to a time zone offset.
For SMPTE time codes, date must be encoded to the specification. IRIG-B date decoding is supported
for the IEEE 1344 standard.
The incoming time code must have the date encoded in a format recognized by the ADC-
A12C31 for DST adjustments to be performed. For best reliability Imagine Communications
Corporation recommends a time code reference that encodes full date information.

ADC-A12C31 Operator’s Handbook Rev. A P. 16
The ADC-A12C31 analog clock provides flexible configuration options supporting most world DST
standards.
Pre 2007 Standard –U.S.A. and Canada
Traditional US/Canada daylight/summer time is configured as one (1) hour positive offset.
For the U.S. (through 2006) and Canada, daylight savings time begins on the first Sunday of
April at 2:00AM (Local Time) and ends on the last Sunday of October at 2:00AM (Local
Time).
Post 2006 Standard –U.S.A. and Canada
On August 8, 2005, the Energy Policy Act of 2005 was signed. This Act changed the time
change dates for Daylight Saving Time in the U.S, effective in 2007. DST now begins on the
second Sunday of March at 2:00 AM (Local Time) and end the first Sunday of November at
2:00 AM (Local Time).
EU Standard –European Union
In the European Union, daylight change times are defined relative to the UTC time of day
instead of local time of day (like in the U.S.). For the European Union, summertime period
begins at 1:00 AM UTC on the last Sunday of March and ends at 1:00 AM UTC on the last
Sunday of October. Please carefully consult the section entitled “Device Settings”for details
on setting daylight time.
To ensure proper hands-free year-around operation, DST adjustments must be configured
using the daylight time option and not with the time zone offset option.
Freewheeling Accuracy
The ADC-A12C31 has built-in provisions to allow the clock to freewheel and maintain accuracy for
extended periods in the absence of time code. These features also allow the unit to be set manually
and operate without time code.
TCXO and RTC circuit
The ADC-A12C31 contains a precision TCXO and RTC circuit allowing the clock to maintain an
accuracy of +/- 1 minute per year to the last known time code input (+/- 165 mS per day)
when time code is not preset or cannot be decoded (i.e. freewheeling mode).
Maintenance-free Rechargeable Battery
The RTC and TCXO are maintained continuously from a rechargeable battery circuit during
periods of power outage. Minimum holdover period is two weeks once the battery is
charged. The battery will automatically charge when the unit is next powered and requires
no maintenance.
Non-Volatile Configuration
The clock configurations are maintained in non-volatile memory allowing the current settings to be
retained during power outages.

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ADC-A12C31 Operator’s Handbook Rev. A P. 18
Configuration
The ADC-A12C31 may be configured using DIP switches or by the Windows software application
ADC-Set, USB Configuration Utility via the USB port.
The ADC-A12C31 ships from the factory with all DIP switch/software configuration offset
options set to off, in order to display UTC time.
This is the factory default configuration is defined as:
SETTING
CONFIGURATION SELECTION
Disabled
Time Zone Offset
Disabled
Time Code Date/Year Encoding
Sweep
Second Hand Motion
DIP Switch
Configuration Mode
DIP Switches
Basic operation of the ADC-A12C31 is configured via the DIP switch banks accessible on the left hand
side of the rear electronics cover.
DIP Switches

ADC-A12C31 Operator’s Handbook Rev. A P. 19
DIP switch bank 1 (S1) configures Time Zone Offset & Daylight Savings Time
S1.1, S1.2, S1.3, and S1.4
Time zone hour offset:
Hour offset S1.1 S1.2 S1.3 S1.4
0 hour offset OFF OFF OFF OFF (default)
1 hour offset ON OFF OFF OFF
2 hour offset OFF ON OFF OFF
3 hour offset ON ON OFF OFF
4 hour offset OFF OFF ON OFF
5 hour offset ON OFF ON OFF
6 hour offset OFF ON ON OFF
7 hour offset ON ON ON OFF
8 hour offset OFF OFF OFF ON
9 hour offset ON OFF OFF ON
10 hour offset OFF ON OFF ON
11 hour offset ON ON OFF ON
12 hour offset OFF OFF ON ON
S1.5
Additional ½ hour time offset (as set by switch positions 1-4).
Function S1.6
No ½ hour offset OFF (default)
Enable ½ hour offset ON
S1.6
Negative/Positive time zone offset (as set by switch positions 1-5).
Function S1.5
Time offset is negative OFF (default)
Time offset is positive ON