evertz 1275A Series User manual

1275A Series
Time / Clock Display
Instruction Manual
Version 5, June 2010
www.evertz.com
EVERTZ MICROSYSTEMS LTD.
BURLINGTON, ONTARIO, CANADA
Corporate Head Office
5292 John Lucas Drive
Burlington, Ontario, Canada
L7L 5Z9
Western US Sales Office:
Phone: [phone] (Factory Tech. Support) Email: [email protected]
Phone: [phone] New York Sales Office:
Fax: [phone] (Service) Email: [email protected]
Fax: [phone] (Sales) LA Sales Office:
Toll Free: 1-877-995-3700 Email: [email protected]
Web Site: http://www.evertz.com U.K. Sales Office:
Email: [email protected] Email: [email protected]

Model 1275A Time Display / Clock Quick Reference Guide
Printed June 10, 2010 Revision 5 Page 1 of 3
Overview
The Model 1275A is a multifunction time of day display, capable of acting as a self contained,
pre-settable clock, or as a slave to a master clock system.
Features:
•1 second per week accuracy in stand-alone mode
•12- or 24-hour mode
•Internal crystal time base or AC line time base
•Reads SMPTE/EBU or DQS-B6 (optional) time code format
Operation
As a slave display the standard version of the clock reads SMPTE/EBU Time code. The user
can program time zone offsets from the incoming code.
NOTE: The version that reads DQS-B6 time code is available as a special order
As a standalone clock it can be programmed to operate in either 12- or 24-hour mode. Two front
panel push buttons allow presetting and accurate synchronization to a time source when the
clock is operating in standalone mode.
Setting the time in Standalone Mode
To set hours: hold the SET button down for more than 1 second.
Hold the button down until the desired value is achieved.
To set minutes: press and release the SET button.
Each press of the SET button advances one minute.
To set seconds: press and release the START button.
Each press of the START button advances one second.
Rear Panel Removal and Connections
Removing the rear panel permits:
•Connection of the power cord
•Connection of a time code input
•User selection of four different operating modes
•Setting of the time zone offset.
NOTE: THE AC VOLTAGE IS FACTORY SET
LABEL CONNECTION
GND GROUND WIRE – GREEN
SUPPLY NEUT NEUTRAL WIRE – WHITE
LIVE LIVE WIRE – BLACK
TIME CODE DQS-B6 or SMPTE/EBU INPUT
COM COMMON GROUND

Model 1275A Time Display / Clock Quick Reference Guide
Printed June 10, 2010 Revision 5 Page 2 of 3
Rear Panel DIP Switch Settings
An eight-position DIP switch is used to select operating modes, and to set the time zone offset.
A label on the rear panel gives an overview of the switch functions.
NOTE: The DIP switch functions of the DQS-B6 version differ from those of the standard unit.
Standard Version DIP Switch Settings
DQS-B6 Version DIP Switch Settings
Display Mode
SWITCH NUMBER:
1 2 3 FUNCTION
OFF SLAVE MODE
ON CLOCK, XTAL
OFF 1 LED ON
ON ELAPSED LED’s
OFF 12 HOUR MODE
ON 24 HOUR MODE
Time Zone
SWITCH NUMBER:
4 5 6 7 8 TIMEZONE
OFF OFF OFF OFF OFF 0 Hour
ON OFF OFF OFF OFF +1 Hour
OFF ON OFF OFF OFF +2 Hours
ON ON OFF OFF OFF +3 Hours
OFF OFF ON OFF OFF +4 Hours
ON OFF ON OFF OFF +5 Hours
OFF ON ON OFF OFF +6 Hours
ON ON ON OFF OFF +7 Hours
OFF OFF OFF ON OFF + 8 Hours
ON OFF OFF ON OFF +9 Hours
OFF ON OFF ON OFF +10 Hours
ON ON OFF ON OFF +11 Hours
OFF OFF ON ON OFF +12 Hours
ON OFF ON ON OFF +13 (-11) Hours
OFF ON ON ON OFF +14 (-10) Hours
ON ON ON ON OFF +15 (-9) Hours
OFF OFF OFF OFF ON +16 (-8) Hours
ON OFF OFF OFF ON +17 (-7) Hours
OFF ON OFF OFF ON +18 (-6) Hours
ON ON OFF OFF ON +19 (-5) Hours
OFF OFF ON OFF ON +20 (-4) Hours
ON OFF ON OFF ON +21 (-3) Hours
OFF ON ON OFF ON +22 (-2) Hours
ON ON ON OFF ON +23 (-1) Hour
Operating Mode
SWITCH NUMBER:
4 5 FUNCTION
OFF OFF SLAVE MODE
OFF ON AC LINE TIME BASE
ON ON INTERNAL TIME BASE
Display Mode
SWITCH NUMBER:
1 2 3 FUNCTION
OFF OFF --- 1 LED ON
ON OFF --- 3 LED’s ON
OFF ON --- ALL LED’s ON
--- --- OFF 12 HOUR MODE
--- --- ON 24 HOUR MODE
Input Code Format
SWITCH NUMBER
6 7 FUNCTION
OFF OFF DQS-B6 CODE
ON ON SMPTE / EBU CODE

Model 1275A Time Display / Clock Quick Reference Guide
Printed June 10, 2010 Revision 5 Page 3 of 3
Specifications
Electrical
Power:
1275A-110: 115V 60Hz 15 VA
1275A-220: 220V 50Hz 15 VA
Fuse:
1275A-110: 150 ma, 250V Slo Blo
1275A-220: 80 ma, 250V Slo Blo
Safety: TÜV listed.
Complies with EU safety directive
EMI/RFI: Complies with FCC Part 15 Class A,
EU EMC Directive
Mechanical
Dimensions: 9.6” W x 9.6” H x 2.125” D
(244mmW x 244mmH x 54mmD)
Weight: 4.4lb
Access: 1” (25mm) diameter hole in rear panel to accommodate electrical conduit.
Code input:
Standard: SMPTE/EBU Time code
20 kΩbalanced/unbalanced
Optional: DQS-B6 or SMPTE/EBU Time code
20 kΩbalanced/unbalanced
Accuracy: Approximately 1 sec per week
In STAND-ALONE mode on internal X-tal oscillator.
Time Zone: +/- 12 hours in 1 hour increments
Offset from SMPTE/EBU code input on standard version..
Evertz Microsystems Ltd.
5292 John Lucas Drive,
Burlington, ON L7L 5Z9
Phone: [phone]
Fax: [phone]
Email: [email protected]
Service: 905-335-7570
Email: [email protected]
http://www.evertz.com