M
ULTI
-S
OURCE
S
YSTEM BASED ON
S
YSTEM
7001RC
Multi-Source Function System 7001RC - V02.01
11 / 31
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]
2
Multi-Source System based on System 7001RC
The sync. sources are selected via the
"SYNCHRONISATION SETTINGS BYTE"
in the
"INITIAL-SETUP"
of the 7001RC system.
2.1 Principle of the
hopf
7001RC Multi-Source System
The 7020RC control board of the 7001RC system has three synchronisation inputs
(channels) for connecting the sync. sources.
Each of these channels can evaluate a specific type of time information.
The 3 channels can be combined in 2 modes as a multiple source with 2 sync. sources:
GPS (Channel 1)
and
Master/Slave-String (Channel 3)
DCF77 pulse (Channel 2)
and
Master/Slave-String (Channel 3)
The following schematic presents an overview of all the synchronisation channel formats
available on the 7020RC control board and the associated information flow:
•
Control of switchover (manual or automatic) between sync. channels 1, 2 and 3
•
When the channel is changed the system re-synchronises to the selected
channel, beginning with the system reception status "Quartz“ ("C").
•
The control of the internal quartz base is taken over by the selected primary
source.
•
Configuration of the sources and channels
•
System clock synchronisation
•
Control of the system-internal quartz base
•
Possible error message
•
Status of the connected sync. channels
Channel 1
GPS
Time base
•
UTC
ST/WT changeover
•
system internal
Leap second
•
from GPS
Channel 2
DCF77 pulse
Time base
•
Local time
ST/WT changeover
•
from DCF77 pulse
•
(special system internal)
Leap second
•
from DCF77 pulse
Channel 3
Master/Slave-String
Time base
•
Local time
•
(special UTC)
ST/WT changeover
•
from Master/Slave-String
•
(special system internal)
Leap second
•
from Master/Slave-String
Generation for this channel
:
•
Independent clock
•
Independent millisecond
•
Error message
Evaluation:
•
Reception
Generation for this channel
:
•
Independent clock
•
Independent millisecond
•
Error message
Evaluation:
•
Reception
Generation for this channel
:
•
Independent clock
•
Independent millisecond
•
Error message
Evaluation:
•
Reception
