DOC AIRBUS | AMM A320FCOCKPIT ADDITIONAL ELECTRICAL SUPPLY - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The system of the cockpit additional electrical-supply supplies 115VAC/60Hz power to the CAPT and F/O outlets through the static inverter. The static inverter converts 28VDC input power to 115VAC/60Hz output power.
The systems of the cockpit additional electrical-supply supply:
** ON A/C NOT FOR ALL The system of the cockpit additional electrical-supply supplies 115VAC/60Hz power to the CAPT and F/O outlets through the static inverter. The static inverter converts 28VDC input power to 115VAC/60Hz output power.
The systems of the cockpit additional electrical-supply supply:
- 115VAC/60Hz power to the CAPT and F/O outlets through the static inverter. The static inverter changes 28VDC input power to 115VAC/60Hz output power.
- 28VDC power to the USB converters of the personal tablets through interface plugs 2170VC and 2171VC.
2. Component Location
** ON A/C NOT FOR ALL 
Component Location| ------------------------------------------------------------------------------- |
| FIN ! FUNCTIONAL DESIGNATION ! PANEL ! ZONE ! ACCESS ! ATA |
| ! ! ! ! DOOR ! REF. |
| ------------------------------------------------------------------------------- |
| 3NA STAT INV 122 811 25.18.51 |
| 5NA OUTLET-115/60HZ, CAPT 17VU 211 25.18.11 |
| 4NA OUTLET-115/60HZ, F/O 16VU 212 25.18.11 |
| ------------------------------------------------------------------------------- |
| FIN ! FUNCTIONAL DESIGNATION ! PANEL ! ZONE ! ACCESS ! ATA |
| ! ! ! ! DOOR ! REF. |
| ------------------------------------------------------------------------------- |
| 3NA STAT INV 122 811 25.18.51 |
| 5NA OUTLET-115/60HZ, CAPT 17VU 211 25.18.11 |
| 4NA OUTLET-115/60HZ, F/O 16VU 212 25.18.11 |
| 8503NA CAPT USB CONVERTER 211 25.18.12 |
| 8504NA F/O USB CONVERTER 212 25.18.12 |
3. Description
** ON A/C NOT FOR ALL - The circuit breaker (1NA) is installed on the rear circuit-breaker panel 121VU at the position 25K. It gives protection to the system of the cockpit additional electrical-supply.
- The circuit breaker (2NA) is installed on the rear circuit-breaker panel 121VU at the position 23K. It gives protection to the CAPT and F/O outlets.
- The static inverter (3NA) is installed in the avionics compartment in zone 122.
- The CAPT and F/O outlets (4NA and 5NA) are installed on each side of the cockpit.They are installed on the CAPT hand-microphone panel 17VU and on the F/O hand-microphone panel 16VU.
- The circuit breaker (1NA) is installed on rear circuit-breaker panel 121VU at position 25K. It gives protection to the systems of the cockpit additional electrical-supply.
- The circuit breaker (2NA) is installed on rear circuit-breaker panel 121VU at position 23K. It gives protection to the CAPT and F/O outlets.
- The static inverter (3NA) is installed between FR5 and FR6 in the avionics compartment.
- The CAPT and F/O outlets (5NA and 4NA) are installed on CAPT hand-microphone panel 17VU and on F/O hand-microphone panel 16VU.
- The circuit breakers (8501NA and 8502NA) are installed on rear circuit-breaker panel 122VU at positions U08 and U09.
- The USB converters (8503NA and 8504NA) of the personal tablets are installed on the left and right sliding window lining-panels.
4. Power Supply
The service bus 210PP supplies 28VDC through the circuit breaker (1NA) to the static inverter (3NA).
When a plug is connected to the CAPT and/or F/O outlet(s) (4NA and/or 5NA), the contact in the outlet(s) closes. The remote on/off control of the static inverter is then supplied.
The 115VAC/60Hz power is supplied by the static inverter through the circuit breaker (2NA) to the CAPT and/or F/O outlet(s) (4NA and/or 5NA).
The service bus 210PP supplies 28VDC through the circuit breaker (1NA) to the static inverter (3NA).
When a plug is connected to the CAPT and/or F/O outlet(s) (4NA and/or 5NA), the contact in the outlet(s) closes. The remote on/off control of the static inverter is then supplied.
The 115VAC/60Hz power is supplied by the static inverter through the circuit breaker (2NA) to the CAPT and/or F/O outlet(s) (4NA and/or 5NA).
- Service bus 210PP supplies 28VDC through the circuit breaker (1NA) to the static inverter (3NA).
- When a plug is connected to the CAPT and/or F/O outlet(s) (4NA and/or 5NA), the contact in the outlet(s) closes. The remote on/off control of the static inverter (3NA) is then available.
- The static inverter (3NA) supplies 115VAC/60Hz power through the circuit breaker (2NA) to the CAPT and/or F/O outlet(s) (4NA and/or 5NA).
- Service bus(es) (103PP and/or 202PP) supply 28VDC through the circuit breaker(s) (8501NA and/or 8502NA) to the USB converter(s) (8503NA and/or 8504NA) of the personal tablet(s).