Cessna 172S Pilot Operating Handbook page 211

C ESSNA
MODEL 1 72S
1 2 V O LT CAB I N POWE R SYST E M
The 1 2 Volt Cabin Power System provides passenger access to
a fixed direct current (DC) voltage for powering portable electronic
devices (PED).
PWR 1 2V", is located on the lower portion of the cockpit center
pedestal (See Figure 1 ) . The RPO conforms to ARINC 628 Part 2
requi rements for commercial airline in-seat power connectors,
except that the Cabin Power System supplies automotive-type 1 2
VDC, in lieu of the 1 5 VDC provided by the airlines.
1 .
Fig ure
Dec
30/00
SUPPLE M E NT 22 - FAA APPROVED
S U P P LE M E NT
S E CTI O N 1
G E N E R A L
The remote power outlet (RPO) , labeled "CABIN
1 2 Volt Cabin Power System Connector
SECTION 9 - SUPPLEM ENTS
CABI N POWER
1 2V
822-3