M
ULTI
-S
OURCE
S
YSTEM BASED ON
S
YSTEM
7001RC
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Multi-Source Function System 7001RC - V02.01
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]
hopf
Elektronik GmbH has various modules in the range for converting time
information in order to produce the signals for channel 2 (DCF77 pulse) and
channel 3 (serial Master/Slave-String). For example, to convert an IRIG-B
signal into a serial Master/Slave-String that can be evaluated by the system
7001RC. This makes it possible for customers also to be able to use other
time signals to synchronise the multi-source system.
2.1.1 Differentiation between Sync. Source Status and System Status
There is a fundamental difference between the system status and the respective status of
the sync. sources:
Sync. source status
•
refers to the synchronisation status of the connected time sources, (
not
to the
synchronisation status of the multi-source system)
•
is displayed alternately on the upper line of the 7001RC system display for each
sync. source
•
can accept the conditions
"-"
(invalid) and
"R"
(radio synchronous
with
control of
the internal quartz base)
•
independently for each source
System status
•
represents the synchronisation status of the clock system
•
is displayed on the lower line of the 7001RC system display, followed by the
indication of accuracy
•
can accept the conditions
"-"
(invalid),
"C"
(quartz),
"r"
(radio synchronous
without
control of the internal quartz base) and
"R"
(radio synchronous
with
control of the
internal quartz base)
•
depends on the synchronisation status of the selected primary source and the set
delay time (sync. time OFF) for a change of status
2.1.2 Differentiation between Primary and Secondary Source
The primary source is the source with which the clock system synchronises by preference
and which controls the system’s internal quartz base provided that this has the status
"
Sync
".
In the event that the signal to the primary source fails and the secondary source has the
status "
Sync
" at this time, synchronisation and control of the internal quartz base switches to
the secondary source.
