Master-Slave Synchronization using the
synchronization lead
Note: This method is not recommended when using the
Smart Interrupter with the SCM.
When using several Smart Interrupters at the same time they
must be time synchronized with each other to ensure signal
compatibility. Use this method to synchronize non-GPS units
or a GPS unit and non-GPS unit.
Each Smart Interrupter is supplied with a synchronization
cable labelled “Master” at one end.
Synchronization symbols are:
Master (serial synchronization)
Slave (serial synchronization)
To synchronize two Smart Interrupters, using the
synchronization lead, proceed as follows:
• Switch on the two Smart Interrupters and ensure they are
in the same mode and are both set to ‘Running’. They will
not synchronize if in different modes.
• Plug the synchronization cable “Master” end into the
serial synchronization cable socket on one of the units.
This unit becomes the Master.
• Plug the other end of the cable
into the other Smart Interrupter.
This becomes the Slave.
The two Smart Interrupters
will automatically synchronize.
The slave Smart Interrupter
will emit a short beep when
a time mark is received.
If there is a mismatch between master and slave patterns
the slave will emit a continuous tone until the mismatch is
corrected. When synchronization is complete the following
screen will be displayed.
To synchronize another slave unit remove the slave end of
the cable from the slave unit and fit it into the next slave unit.
Repeat the synchronization procedure until all slave units have
been synchronized with the master. The master and slave units
will remain synchronized for a minimum of 24 hours or until a
unit is switched off or you change its settings. When a Smart
Interrupter is a slave synchronized unit, an ‘s’ is displayed on
the screen. When the synchronization cable is removed from a
Smart
Interrupter
100 AG
Smart
Interrupter
100 AG
Master
Slave
