Lexmark 4059-XXX - Manual (Page 245)

Connector Locations 5-20
4059-XXX
Level 1 Duplex Option Board
J9 Autoconnect,
Option Below 1 Ground
2 PrtxDout
3 Ground
4 PrtRxd
J10 Autoconnect,
Option Below 1 +24 V dc
2 Ground
J11 Printer
Autoconnect 1 +24 V dc
2 Ground
J12 Printer
Autoconnect 1 N/A
2 Ground
3 PrtxDin
4 Ground
5 PrtRxD
Connector Pin No. Signal