Chapter 9
9-14 Printer-Applicator User’s Manual
Redundant System Feature (aka Zero-Downtime)
The Model 4300 supports a simple redundant system feature where the Ready output from one
applicator (primary) is connected to the Applicator Disable external input of another applicator
(secondary.)
When the primary applicator is ready and applying labels the secondary applicator is held in Idle mode
and not applying labels. When the primary applicator becomes not ready due to an error condition, the
secondary applicator automatically switches to run mode and applies labels. Once the primary
applicator’s error condition is corrected and the applicator is ready, the secondary applicator will
automatically switch to Idle mode and stop applying labels.
To use this feature, one Model 4300 is configured as a ‘Master’ and one Model 4300 is configured as a
‘Slave.’ Next, a signal cable is connected between the two Model 4300s. Connect Weber cable #56138
to the Master-Slave connectors on the rear of the Model 4300 enclosure.
To configure a Model 4300 for Master or Slave, turn off power and remove the power cord from the
model 4300. Next, remove the cover on the enclosure and located the printed circuit board attached to
the rear of the enclosure. On the back side of the circuit board is a jumper label Master and Slave. Set
the jumper to Master or Slave. Note the factory setting is Master.
Load both printers with a print job and place both printers in Run mode. The Slave Model 4300 will
enter Idle mode and wait until the Master Model 4300 is unable to print labels.
Figure 9-9: Connector Board with Callout to Master Slave Jumper
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