Watchdog Changeover Unit User Guide - Trilogy Communications

Trilogy Communications LimitedWatchdogCONTENTS1. APPLICATION .............................................................................................................................................51.1 INTRODUCTION .............................................................................................................................................51.2 AVAILABLE OPTIONS ......................................................................................................................................51.3 TECHNICAL SUPPORT......................................................................................................................................61.4 WARRANTY..................................................................................................................................................62. INSTALLATION............................................................................................................................................72.1 UNPACKING .................................................................................................................................................72.2 RACK MOUNTING..........................................................................................................................................72.3 MAINS CONNECTION AND FUSING....................................................................................................................73. 370-10-00 ACTIVE BOARD ..........................................................................................................................93.1 OVERVIEW ...................................................................................................................................................93.2 BLOCK DIAGRAM.........................................................................................................................................103.3 MONITORING .............................................................................................................................................113.3.1 Black and Burst...................................................................................................................................113.3.2 Tri-Level-Sync .....................................................................................................................................113.3.3 10 MHz Clock......................................................................................................................................123.3.4 1 PPS...................................................................................................................................................123.3.5 AES .....................................................................................................................................................123.3.6 LTC......................................................................................................................................................123.4 CHANGEOVER .............................................................................................................................................123.5 COMPARATOR ............................................................................................................................................133.5.1 1 PPS and 10 MHz Comparisons.........................................................................................................133.6 ON BOARD JUMPER SETTINGS .......................................................................................................................133.7 REAR CONNECTORS .....................................................................................................................................143.7.1 D-type – RM-03 ..................................................................................................................................143.7.2 BNC – RM-01 (without bypass relays) ................................................................................................153.7.3 BNC – RM-38 (with bypass relays) .....................................................................................................153.8 GPI ..........................................................................................................................................................163.9 BOARD EDGE CONTROLS/STATUS....................................................................................................................173.9.1 Orientation .........................................................................................................................................173.9.2 Detail..................................................................................................................................................173.10 370-10-02 ACTIVE BOARD – AES / LTC ONLY ................................................................................................184. 370-11-00 PASSIVE BOARD.......................................................................................................................194.1 OVERVIEW .................................................................................................................................................194.2 BLOCK DIAGRAM.........................................................................................................................................204.3 CHANGEOVER .............................................................................................................................................204.4 REAR CONNECTORS .....................................................................................................................................214.4.1 RM-01, RM-03, RM-38 .......................................................................................................................214.4.2 370-50-00...........................................................................................................................................214.5 GPI ..........................................................................................................................................................214.6 BOARD EDGE CONTROLS/STATUS....................................................................................................................224.7 ON BOARD JUMPER SETTINGS 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