I think I know what the issue is. The cash drawer provides a hard wired RJ11 connector, however the printers come with an RJ12 interface. The printers came wired Ithaca drawer mode configuration and I’m pretty sure its not getting a pulse on pin 1. I’m ordering a new cash drawer with an RJ12 interface to see if that works. All the cash drawers I’ve had came hard wired with RJ11 connectors.
If I’m wrong or missing something let me know.
Ithaca manual regarding printer drawer interface:
Bottom of Printer:
Cash Drawer Hard-Wired Cable:
Printer Cash Drawer Port:
