Master Oscillator
OCXO-SQ (Oven Controlled Oscillator)
Accuracy compared to
IRIG-reference:
sync. and 20 min. of operation:
±
5E-9
first 20 min. after sync.:
±
1E-8
accuracy of oscillator:
holdover, 1 day:
±
1E-7
holdover, 1 year:
±
1E-6
short term stability:
≤
10 sec, synchronized:
±
2E-9
≤
10 sec, holdover:
±
5E-9
temperature dependant drift:
holdover:
±
1E-6
Frequency Synthesizer
Output frequency:
fixed - 2.048MHz
Accuracy:
like system accuracy
1/8 Hz to 10 kHz:
Phase synchronous to pulse per second
10 kHz to 10 MHz:
deviation of frequency < 0.0047 Hz
Synthesizer Outputs:
TTL into 50
Ω
sine wave 1.5 Vrms
output impedance 200
Ω
Pulse Outputs
Pulse per second (PPS):
TTL- and RS-232 level
positive pulse, pulse duration 200 msec
Pulse per minute (PPM):
TTL level
positive pulse, pulse duration 200 msec
Pin Assignment of the DSUB9 Connectors (male):
Pin 2: RxD
Pin 3: TxD
Pin 5: GND
Synchronization with PPS + String*:
Pin 1: PPS
Pin 2: String
*
*
The following timestrings (time telegrams) can be
used:
NMEA RMC
NMEA ZDA
Meinberg Standard
Uni Erlangen
COM
56
Date: 2nd July 2020
IMS - LANTIME M4000
Содержание IMS LANTIME M4000
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Страница 79: ...Input 4 PPS In Pulse length 5µs active high 74 Date 2nd July 2020 IMS LANTIME M4000 ...
Страница 109: ...Figure Selection of programmable pulse outputs 104 Date 2nd July 2020 IMS LANTIME M4000 ...
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