Issue
The keypad displays SDI fails and displays the SDI number.
Solution
The devices on the SDI bus are missing.
- Need to check the wiring to the SDI device
- Check the DIP switch addressing of each SDI device
- SDI 1 - 8 = Keypads
- SDI 17 - 19 = Printer Modules
- SDI 33 - 40 = D9210B
- SDI 80 - 88 = D9133TTLE or DX4020
Part numbers D7212B, D9112B, D7212B1, D9112B1, D7212, D7412, D9112, D9124, D9412, D7412G, D9124G, D9412G, D7412GV2, D9124GV2, D9412GV2,
