Printronix T5000 Software Manual page 245

The connections made on the printer's I/O connector are displayed in the
diagram below.
500mA Fuse
Figure 214. I/O Connections
Applicator Example
Imagine that a printer is connected to an applicator. When the printer has a
label ready for the applicator to handle, it signals this event by activating one
of the outputs. As soon as the applicator takes the label, the signal to the
applicator will be removed until the next label is present. This way a simple
interface connection between an applicator and printer is established. If any
printer error occurs, relay 1 will activate and result in additional action. Once
the problem is solved, placing the printer online clears the error report and
printing can start again.
Figure 215. Setting Events and Actions for Print and Apply
34: R1 com
35: R2 com
36: R3 com
37: R4 com
38: R1 NC
39: R2 NC
40: R3 NC
41: R4 NC
42: R1 NO
43: R2 NO
44: R3 NO
45: R4 NO
24 V
24 V Ret
L1 - Red/Offline
L2 - Orange/Ribbon
L3 - Yellow/Operator-Paper
L4 - Green/Online
Mapping Examples
L1
L2
L3
L4
245