Switching Panel

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Description

To have maximal redundancy A320 pilots can switch backup computers or data sources to be used for either the Captain's or First Officer's displays.

Usage

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.

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.

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