TM 1-1520-238T-10 WIRING DIAGRAM DIRECTORY (cont) REFDES COMPONENT CABLE PARAGRAPH WIRING DIAGRAM XK4-V2 SQUAT RELAY W668 4-1 AREA WEAPON SYSTEM (A402) (AWS) XK4-1/2 SQUAT RELAY W668 9-1 AC ELECTRICAL POWER (A402) GENERATION XK4-/2 SQUAT RELAY W668 9-28 SQUAT SWITCH (A402) XK4-1/2 SQUAT RELAY W668 11-1 EXTERNAL STORES (A402) CONTROL XK4-1/2 SQUAT RELAY W668 12-1 DASE (BUCS DEACTIVATED) (A402) XK4-1/2 SQUAT RELAY W668 12-2 DASE (BUCS ACTIVATED) (A402) XK4-1/2 SQUAT RELAY W668 16-1 IFF (A402) XK4-3/4 AFT AVIONICS FAN W668 10-1 ENVIRONMENTAL (A402) RELAY CONTROL SYSTEM (ECS) XK4-5/6 ADS CONTROL RELAY W668 2-1 AIR DATA SYSTEM (ADS) (A402) XK4-5/6 AIR DATA SUBSYSTEM W668 9-5 CIRCUIT PROTECTION (A402) CONTROL RELAY (AC ESSENTIAL BUS 1 - PILOT STATION) ,XK4-7 (A402) ECS AIR SHUTOFF W668 10-1 ENVIRONMENTAL VALVE/ENGINE START CONTROL SYSTEM (ECS) INTLK RELAY XK4-7 (A402) ECS AIR W668 23-1 POWER PLANTS SHUTOFF/ENGINE START INTLK RELAY XK4-7 (A402) ECS AIR W668 25-2 ENGINE ANTI-ICE SHUTOFF/ENGINE START INTLK RELAY XK4-8 (A402) ENCU RELAY W668 10-1 ENVIRONMENTAL CONTROL SYSTEM (ECS) XK4-9/10 SQUAT RELAY W668 4-1 AREA WEAPON SYSTEM (A402) (AWS) XK4-9/10 SQUAT RELAY W668 6-1 INTERCOMMUNICATION (A402) WIRING DIAGRAM DIRECTORY (cont) REFDES COMPONENT CABLE PARAGRAPH WIRING DIAGRAM XK4-9/10 SQUAT RELAY W668 9-28 SQUAT RELAY (A402) XK4-9/10 SQUAT RELAY W668 25-7 TAD/SPNVS ANTI-ICE (A402) CONTROLS XK5 (Al FUEL TRANSFER W612 13-4 PRESSURE A131) CAUTION RELAY REFUELING/DEFUELING XK5-10 ICE DETECT RELAY W668 25-2 ENGINE ANTI-ICE (A402) XK5-10 ICE DETECT RELAY W668 25-3 ROTOR BLADES DE-ICE (A402) XK5-10 ICE DETECT RELAY W668 25-4 PITOT ANTI-ICE (A402) XK5-2 (A402) DOPPLER ON/OFF RELAY W668 20-3 DOPPLER NAVIGATION AN/ASN-137 (ADC) XK5-2 (A402) DOPPLER ON/OFF RELAY W668 20-3A DOPPLER NAVIGATION AN/ASN-137 (ADD) XK53/4 ZEROIZE RELAY SOCKET 20-3A DOPPLER NAVIGATION (A402) AN/ASN-137 (ADD) XK5-3/4 ZEROIZE RELAY SOCKET 20-7 DATA TRANSFER UNIT (A402) (ADD) XK53/4 ZEROIZE RELAY SOCKET 20-8 EGI (ADD) (A402) XK5-5 (A402) ANT PWR RELAY SOCKET W266 20-3A DOPPLER NAVIGATION AN/ASN-137 (ADD) XK6 (A128) RELAY SOCKET 20-3A DOPPLER NAVIGATION AN/ASN-137 (ADD) XK6 (A128) RELAY SOCKET 20-7 DATA TRANSFER UNIT (ADD) XK6 (A128) RELAY SOCKET 20-8 EGI (ADD) XP529 (XA85) CONNECTOR W659 4-1 AREA WEAPON SYSTEM (AWS) 1-188 Change 5