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System 6844(RC) - V03.00
hopf
Elektronik GmbH
Nottebohmstr. 41
• D-58511 Lüdenscheid • Tel.: +49 (0)2351 9386-86 • Fax: +49 (0)2351 9386-93 • Internet: http://www.hopf.com • E-Mail: [email protected]
Signal Outputs (internal)
System-PPS
Accuracy
see internal system accuracy
Signal level:
TTL (5V)
Pulse duration:
10msec
1kHz (msec)
Offset (at System-PPS):
< ± 2µs
Jitter/Stability:
see System-PPS
Signal level:
TTL (5V) / low active
(1)
DCF77.SYS pulse
Offset (at System-PPS):
0µs < Offset < 8µs
Jitter/Stability:
see System-PPS
Signal level:
TTL (5V) / low active
(1)
DCF77.ADD pulse
Offset (at System-PPS):
no Offset
Jitter/Stability:
see System-PPS
Signal level:
TTL (5V) / low active
(1)
IRIG-B.(1)
Offset (at System-PPS):
see 1kHz (msec)
Jitter/Stability:
see 1kHz (msec)
Signal level:
TTL (5V) / low active
(1)
IRIG-B.(2)
Offset (at System-PPS):
see 1kHz (msec)
Jitter/Stability:
see 1kHz (msec)
Signal level:
TTL (5V) / low active
(1)
Signals from status and
pulse output
Offset (at System-PPS):
90µs < Offset < 110µs
Jitter/Stability:
< ± 5µs
Signal level:
TTL (5V) / low active
(1)
RC-Output
OUT1-OUT4
(6844RC only)
Offset (at System-PPS):
see selected pulse
Jitter/Stability:
see selected pulse
Signal level:
TTL (5V) / low active
(1)
Signal Outputs (external)
DCF77 Antenna Simulation (77.5kHz):
Via BNC connector, female
Accuracy:
see DCF77.SYS pulse
Signal level:
3-5mV
pp
at 50
Carrier frequency: 77.5kHz ± 25ppm
Special production:
Modifications can be made to hardware and software in accordance with customer specifica-
tions.
The
hopf
Company reserves the right to modify hardware and software at any
time.
Comment
(1) Notification to TTL Low active: 5V = Log.0 / 0V = Log.1
