Card Reader Communication Loss
Otis · 400 Elevator
Was bedeutet Card Reader Comm ?
Indicates no communication with the card reader for more than 5 minutes. This prevents the machine from processing card payments, disabling cashless transactions.
Häufige Ursachen
- Loss of communication between the controller and the card reader for an extended period.
Reparaturschritte & Checkliste
Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.
- 1
Verify supply voltage at the card reader's power input terminals against specified nominal values.
- 2
Inspect all data and power cables connecting the card reader to the elevator control unit for physical damage, loose connections, or improper seating.
- 3
Check the elevator control system's diagnostic interface or configuration menu for card reader communication status and relevant network/device parameters.
- 4
Observe the status indicator LEDs on the card reader module for power, communication activity, and any error indications.