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Summary of Contents for Meinberg TCR51USB
- Page 1 MANUAL TCR51USB USB Clock 10th July 2017 Meinberg Radio Clocks GmbH & Co. KG...
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Page 3: Table Of Contents
........5 Technical Specifications TCR51USB... -
Page 4: Imprint
1 Imprint 1 Imprint Meinberg Funkuhren GmbH & Co. KG Lange Wand 9, 31812 Bad Pyrmont / Germany Phone: + 49 (0) 52 81 / 93 09 - 0 Fax: + 49 (0) 52 81 / 93 09 - 30 Internet: http://www.meinberg.de... -
Page 5: Content Of The Usb Stick
If the delivered stick doesn’t include a driver program for the operating system used, it can be downloaded from: http://www.meinbergglobal.com/english/sw/ On the USB stick there is a file called "readme.txt", which helps installing the driver correctly. Date: 10th July 2017 TCR51USB... -
Page 6: Introduction: Abstract Of Time Code
"Inter Range Instrumentation Group" (IRIG) in the early 60´s. Except these "IRIG Time Codes" other formats, like NASA36, XR3 or 2137, are still in use. The board TCR51USB however only decodes IRIG-A, IRIG-B or AFNOR NFS 87-500 formats. The AFNOR code is a variant of the IRIG-B format. -
Page 7: Irig Standard Format
3.2 IRIG Standard Format Date: 10th July 2017 TCR51USB... -
Page 8: Afnor Standard Format
3 Introduction: Abstract of Time Code 3.3 AFNOR Standard Format TCR51USB Date: 10th July 2017... -
Page 9: Features: Tcr51Usb
4 Features: TCR51USB The TCR51USB was developed for computer systems with USB connection. TCR51USB serves to receive and decode modulated (AM) and unmodulated (DC Level Shift) IRIG and AFNOR time codes. AM-codes are trans- mitted by modulating the amplitude of a sine wave carrier, unmodulated codes by variation of the width of pulses. -
Page 10: Functional Description
After the received IRIG code has passed a consistency check, the software clock and the battery backed real- time clock of TCR51USB are synchronized to the external time reference. If an error in the IRIG telegram is detected, the system clock of the board switches to holdover mode. Drifting of the internal time base is limited to 1 sec/sec by regulating the onboard quartz of TCR51USB. - Page 11 (CF) segment. (also see table ’Assignment of CF segment in IEEE 1344 mode’) IEEE C37.118: Like IEEE 1344 - with UTC offset to be applied reversely Additional codes are available on request Date: 10th July 2017 TCR51USB...
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Page 12: Usb Interface
Monitorprogramm. 4.3 Connectors and LEDs The housing of the TCR51USB contains the connectors for the Timecode (IRIG AM/DC), two LED‘s, the key for the Bootstrap-Loader as soon as the the USB connector. The LEDs signal the status of the IRIG receiver. The upper, red LED is switched on whenever the internal timing of TCR51USB is in holdover mode. -
Page 13: Buffering
Powersupply. This enables a independent Voltagesupply for the internal realtime clock of ca. 5 Days. After this this time the TCR51USB is not able to read, during the start activity, the correct time and date information from the realtime clock. Therefor the TCR51USB is not able to synchronize to the received IRIG signal. -
Page 14: Configuration Of Tcr51Usb
USB. In contrast to AFNOR NFS 87-500 the IRIG telegram containes only the day of year (1...366) instead of a complete date. To ensure correct function of TCR51USB, the date stored in the realtime clock of the board must be set when using IRIG codes therefore. This setting can be done by a terminal software also. -
Page 15: Technical Specifications Tcr51Usb
5 Technical Specifications TCR51USB Receiver Input: AM-input (SMB-jack): Insulated by transformer impedance: Input signal: 600 mV to 8 V (Mark) other ranges on request DC-Level Shift Input (SMB-jack): insulated by photocoupler internal series resistance: maximum forward current: 50 mA diode forward voltage: 1.0 V...1.3 V... -
Page 16: Firmware Updates
The contents of the program memory will not be modified until the loader program has sent the command to erase the flash memory. So if the button has been pressed accidentally, the system will be ready to operate again after the computer has been turned off an the on again. TCR51USB Date: 10th July 2017... -
Page 17: Declaration Of Conformity
7 Declaration of Conformity Konformitätserklärung Doc ID: TCR51USB-2017-07-06 Hersteller Meinberg Funkuhren GmbH & Co. KG Manufacturer Lange Wand 9, D-31812 Bad Pyrmont erklärt in alleiniger Verantwortung, dass das Produkt, declares under its sole responsibility, that the product Produktbezeichnung TCR51USB Product Designation auf das sich diese Erklärung bezieht, mit den folgenden Normen übereinstimmt...
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