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Passive Hydrogen Maser

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Equipment that provides a timing signal that may be used as the basis of reference for the control of other clocks within a network. The long-term accuracy of that signal is maintained at 1 x 10-11 or better. This primary reference source generates a timing signal completely autonomous of other references using passive hydrogen maser technology. PRS VCH-1006 provides the highest quality sync for telecom networking as required by international standards.
Output signals: sine 5, 10 and 100 MHz, (1±0.3) V rms @ 50 Ohm; 2048 kHz G.703/13.
Accuracy (over environment): ±1x10–12 (ten times better than ITU-T G.811 / 5 and ETS 300 462-6 / 4 recommendations).
MTIE and TDEV meet requirements of ITU-T G.811 / 6.1 and ETS 300 462-6 / 5.1:
MTIE (ns)

Time interval t(s)
0,275t+25

0,1 < t =< 1000;
0,01t+290

t > 1000.
TDEV (ns)

Time interval t(s)
3

0,1 < t =<100;
0,03t

100 < t =< 1000;
30

1000 < t =< 10 000.
Output signal 2048 KHz jitter meets requirements of ITU-T G.811 / 6.2 and ETS 300 462-6 / 5.2.
Frequency stability:
Time interval

Allan variance
1 s

2x10-12
10 s

6x10-13
100 s

2x10-13
3600 s

6x10-14
1 day

2x10-14
Interfaces: RS-232C and LAN (10/100 Base-T Ethernet).
Power: -48 V DC nominal (-36 to -62 V DC).
Power consumption: < 80 W.
Dimensions: 200x470x513 mm.
Weight: 30 kg.

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