Normal operating temperature and warmth

Rubidium oscillator options

Devices equipped with Rubidium Oscillator options will generate significantly more warmth than units without these options. This is normal, expected behavior and remains well within the device’s specified operating parameters.

Environmental specifications

The typical operating ambient temperature range across Masterclock devices is 0 to 60°C (32 to 140°F). This is the surrounding-air range, not a measurement of the case surface. Install and operate the device within the temperature and humidity requirements for the model in use.

Examples specifying this range include the GMR6000 Rev D datasheet, DA12 datasheet, and PCIe-TCR datasheet.

Temperature and oscillator stability

OCXO and rubidium oscillator options use temperature control and active compensation to reduce sensitivity to ambient changes. This does not eliminate temperature effects or establish a universal drift limit. Operate within the model’s environmental specification and assess reference quality, prior disciplining and network or signal conditions when investigating a timing error.

See oscillator discipline and holdover for the relationship between reference lock and holdover performance.