IMS – XHERb
External Holdover Expansion
PRS10 Rubidium Oscillator
The Meinberg XHERb chassis adds superior holdover performance to the Meinberg IMS time and frequency systems. It contains either one or two PRS10 Rubidium modules from Stanford Research and can be equipped with dual power supplies for each Rubidium module.
The module will be connected to the reference clock of the associated IMS chassis and the Rubidium will be steered as long as the reference clock is Synchronised.
In case the reference clock loses its sync source, the XHE chassis provides the sync reference for IMS chassis based on its holdover performance.
Key Features
- XHE chassis provides sync reference for IMS chassis based on its holdover performance
- Holdover: 72 hour Stratum 1 level
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Technical Specifications
| Dimensions | 483mm x 132mm x 275mm / Width x Height x Depth |
|---|---|
| Operating Temperature | 0 ... 40 °C |
| RoHS | Yes |
| Board Dimensions | 160mm x 100mm, 1,5mm Epoxy |
| Dimensions of the Front Panel | 14HP/3U (70mm x 128mm) |
| Electrical Connectors | 64 pin rear VG edge connector DIN 41612 |
| Frequency Retrace | ± 5E-11 (72 hrs. off then 72 hrs. on) |
| Oscillator Aging | Aging (after 30 days): monthly: 5E-11 yearly: 5E-10 |
| Power Supply Maximum Power Range |
|
| Relative Humidity | Max. 85% |
| Short Term Stability Tau 1 Sec | (Allan Variance)
< 2E-11 (1 s) < 1E-11 (10 s) < 2E-12 (100 s) |
| Technical Support | Meinberg offers free lifetime technical support via telephone or e-mail. |
| Temperature Drift | +/- 1E-10 (-20°C...65°C) |
| Warm Up Time | < 15 minutes (time to lock) | < 20 minutes (time to 1E-9) |
| WEEE Status of the Product | B2B. Return to manufacturer |
Downloads
| Datasheet | Click to view Datasheet (PDF) |
|---|---|
| Manual | Click to view Manual (PDF) |
