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Notes

Holdover and aging performance is after 7 days of power-on time.

1)

Temperature stabilities applyt o -20 to +70 ˚C modules. For other temperatures the temperature stability will

2)

vary, however the hold over values over defined temperature ranges remain constant.

24 hour average when locked to GPS

3)

The status locked indicator is intended to indicate when the module is fully locked to GPS.

4)

The Hardware OK indicator is intended to indicate when the module is operating properly without any failures,

5)

including hardware, software or parameter out of range. See protocol for further information.

Open collector input bit.

6)

If the minimum supply current is not exceeded, the Antenna Open Flag will be set. Over current will be set if

7)

maximum is exceeded. Circuit has overcurrent protection.

The Rx pin is the serial interface input and the Tx pin is the serial interface output. The serial interface shall

8)

operate at 9600 baud with eight (8) data bits, one (1) stop bit and no parity.

This holdover performance also applies to the temperature deviation over the entire operating range of -20 to

9)

+70˚C.

Application Notes

Holdover Contributions and Calculations - please contact factory

1)

Vectron Discipline and Hold Over Process and Algorithms - please contact factory

2)

Utilizing Disciplined Oscillators as Frequency References - please contact factory

3)

Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com

Disclaimer

Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice. No liability is assumed as a result of their use or application.

No rights under any patent accompany the sale of any such product(s) or information.

Rev: 100509 dmc

For Additional Information, Please Contact

USA:

Vectron International

267 Lowell Road

Hudson, NH 03051

Tel: 1.888.328.7661

Fax: 1.888.329.8328

Europe:

Vectron International

Landstrasse, D-74924

Neckarbischofsheim, Germany

Tel: +49 (0) 7268.801.100

Fax: +49 (0) 7268.801.282

Asia:

Vectron International

1F-2F, No 8 Workshop, No 308 Fenju Road

WaiGaoQiao Free Trade Zone

Pudong, Shanghai, China 200131

Tel: 86.21.5048.0777

Fax: 86.21.5048.1881

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