D19 MasterSync
E 1/2 Come in! Date printed: 13.09.00
Redundancy: Two MasterSync units can be connected with a cable (order no.
1.680.025.00). Both units must be fed with the same sync signal and
must have identical settings. In case of a malfunction, the supply as
well as the AES/EBU and word clock signals are taken from the sec-
ond unit. In order to avoid phase jumps during switchover, both units
are continuously synchronized. It is also possible to install a second,
redundant power supply into a single generator/distributor unit (jumper
P60-P61 must be moved to P59-P61). The “WARN” LED indicates a
generator or supply failure; however, normal operation is still main-
tained.
If the generator cannot generate a valid AES/EBU sync signal in spite
of the redundancy, the “FAIL” LED is illuminated.
Redundancy Input Option: When using this option (see chapter 1.2.2 below), each of the main
inputs can be equipped with an additional redundancy input. Auto-
matical switchover to the corresponding redundancy input takes place
if one or more of the main inputs do not receive a valid AES/EBU sig-
nal. Thus, important outputs (such as program feeds) can be made very
reliable. For each of the main inputs a sampling frequency converter
(SFC) can be inserted into the signal path (with internal jumpers); the
redundancy inputs always have SFCs in their signal path.
1.2 General
1.2.1 Scope of Delivery
The D19 MasterSync (Order No. 60.681.010.00) is shipped with an
IEC 320/C13 socket, a hex-socket screwdriver (2.5 mm), and this op-
erating manual.
1.2.2 Options
Redundancy Input Option: For watching the AES/EBU inputs 1...4 1.680.041.00
If one of these signals fails, switchover to a redundant input (with SFC)
can be done automatically or controlled by an external signal. The out-
put is synchronized to the generator's output signal.
An alarm output provides the individual error signals.
MADI Word Clock Extractor: Generating the word clock signal from MADI 1.680.040.20
The optical MADI signal is used to generate a word clock signal; the
MADI signal is fed to an optical output as well.
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