A320 SWITCHING PANEL

A320 Switching Panel

ATT HDG Selector

  • NORM: IR 1 supplies data to PFD 1 ND 1, and Digital Distance and Radio Magnetic Indicator (DDRMI)/VOR DME. IR 2 supplies data to PFD 2 and ND 2.
  • CAPT 3: IR 3 replaces IR 1 and supplies data to PFD 1, ND 1, and DDRMI/VOR DME.
  • F/O 3: IR 3 replaces IR 2 and supplies data to PFD 2 and ND 2.

AIR DATA Selector

  • NORM: ADR 1 supplies data to PFD 1 and ND 1. ADR 2 supplies data to PFD 2 and ND 2.
  • CAPT 3: ADR 3 replaces ADR 1 and supplies data to PFD 1, and ND 1.
  • F/O 3: ADR 3 replaces ADR 2 and supplies data to PFD 2 and ND 2.

EIS DMC Selector

  • NORM: DMC 1 supplies data to PFD 1, ND 1, and the upper ECAM DU. DMC 2 supplies data to PFD 2, ND 2, and the lower ECAM DU.
  • CAPT 3: DMC 3 replaces DMC 1.
  • F/O 3: DMC 3 replaces DMC 2.

Note: If a DMC fails, each of its associated DUs displays an “INVALID DATA” message.

ECAM/ND XFR Selector

  • NORM: The System Display (SD) appears on lower ECAM.
  • CAPT: Transfers the System Display to Captain’s ND.
  • F/O: Transfers the System Display to First Officer’s ND.