Oscillator Type
Medium-Term Stability
(without GPS after 2
weeks of GPS lock)
Short-Term Stability
(Allan variance)
Temperature
Stability (p˗p)
1sec. 10sec.
100
sec.
Low-phase noise
OCXO
2x10
-10
/day 1x10
-11
9x10
-12
8x10
-12
1x10
-9
OCXO 5x10
-10
/day 1x10
-11
9x10
-12
9x10
-12
5x10
-9
TCXO 1x10
-8
/day 2.5x10
-9
1x10
-9
5x10
-10
1x10
-6
1.6.3.1 10 MHz Output — Oscillator Phase Noise (dBc/Hz)
Oscillator Type @ 1Hz @ 10Hz @ 100Hz @ 1KHz @ 10KHz
Low-phase noise Rubidium ˗100 ˗128 ˗148 ˗150 ˗150
Rubidium ˗80 ˗98 ˗120 ˗140 ˗140
Low-phase noise OCXO ˗100 ˗128 ˗148 ˗150 ˗150
OCXO ˗95 ˗123 ˗140 ˗145 ˗150
TCXO ./. ./. ˗110 ˗135 ˗140
1.6.4 Multi I/O
The Multi I/O HD15-pin connector can be configured to provide different output
and input types. For more information, see "Configurable Connectors" on
page157.
Connector: 15 pin D-Sub (HD15) female
Available signals:
DCLS IN:
Input level 1.5 V (min), impedance 50 Ω
DCLS OUT:
Output level 5 V (peak), impedance 50 Ω
IRIG AM OUT:
Output impedance - 50 Ω
Output level: 10 V (peak to peak max, user configurable)
1.6 Specifications
CHAPTER 1 • SecureSync 2400 User Manual Rev. 5.2
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