Albedo xGenius - Clock; Rubidium Reference; Built in GNSS; GNSS Compact Antenna

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User Guide
292
4. Through operation: The equipment does not generate traffic. Traffic received from
port A is forwarded to port B. Traffic from port B is forwarded to port A.
A.3. Clock
1. Internal time reference better than ±2.0 ppm.
2. Optional OCXO internal reference better than ±0.1 ppm. Optional Rubidium inter-
nal reference.
3. Holdover operation in units equipped with OCXO and Rubidium references.
A.3.1. Rubidium Reference
1. Free running output freq. accuracy (7.5 minutes warm up): ±1e-9
2. Free running output freq. accuracy on shipment (24 h. warm up): ±5e-11
3. Aging (1 day, 24 hours warm up): ±.5e-11
4. Aging (1 year): ±1e-9
5. Time / Phase accuracy to UTC (locked to GNSS): ±20 ns at 1σ after 24 hours lock
6. Holdover output time accuracy (after 24 h. locked, ±2 ºC): ±100 ns / 2h, ±1.0 μs / 1
day
A.3.2. Built in GNSS
1. Compatibility with GPS, GLONASS, BeiDou and Galileo with single or multiple
constellation selection.
2. Fixed position mode for GNSS references.
3. Automatic setting of UTC-to-TAI offset (leap second count) through GNSS.
4. 4V - 5V DC output in GNSS port to feed an external antenna.
5. Cable delay compensation.
A.3.3. GNSS Compact Antenna
• SMA male connector
• Polarization: RHCP
• Frequency band: 1573 MHz - 1610 MHz
• Gain: 27 dB
• Noise figure: 1.5 dB
• Voltage: 2.7 V - 5.5 V
• Protection level: IP 67
A.3.4. Clock Reference Inputs
1. 10 MHz, 5 MHz, 2048 kb/s, 2048 kHz, 1544 kb/s, 1544 kHz (REF IN/OUT port).