
PS Engineering
PAC24 Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-240-0010
Page 2-7
Rev. 29, Sept. 2021
Dual PAC24 - Pilot Panel- 28 Volt Aircraft
Dual PAC24- Copilot Panel- 28 Volt Aircraft
SW2
SW3
SW4
SW5
SW2
SW3
SW4
SW5
1
ON
ON
OFF
OFF
1
ON
ON
OFF
OFF
2
OFF
OFF
ON
ON
2
OFF
OFF
ON
ON
3
ON
ON
ON
OFF
3
ON
ON
ON
ON
4
OFF
OFF
OFF
See
notes
4
OFF
OFF
OFF
See
notes
J4- On/ J5- Pins 1 & 2
J4- Off J5- Pins 2 & 3
Table 2-3 Dual Audio Panel DIP Switch Settings without expansion
Dual PAC24 with Expansion (P/N 11606)-
Pilot Panel- 28 Volt Aircraft
Dual PAC24 with Expansion (P/N 11606)-
Copilot Panel- 28 Volt Aircraft
SW2
SW3
SW4
SW5
SW2
SW3
SW4
SW5
1
ON
OFF
OFF
ON
1
ON
OFF
OFF
ON
2
OFF
ON
ON
ON
2
OFF
ON
ON
ON
3
OFF
OFF
ON
OFF
3
OFF
OFF
ON
ON
4
ON
ON
OFF
See
notes
4
ON
ON
OFF
See
notes
J4- On/ J5- Pins 1 & 2
J4- Off/ J5- Pins 2 & 3
Table 2-4 Dual Audio Panel DIP Switch Settings with expansion
Dual PAC24 Observer (-0400)-
CREW Panel- 28 Volt Aircraft
Dual PAC24 Observer (-0400)-
Observer Panel- 28 Volt Aircraft
SW2
SW3
SW4
SW5
SW2
SW3
SW4
SW5
1
ON
OFF
OFF
OFF
1
ON
OFF
OFF
OFF
2
OFF
ON
ON
ON
2
OFF
ON
ON
ON
3
ON
OFF
ON
OFF
3
ON
OFF
ON
ON
4
OFF
ON
OFF
See
notes
4
OFF
ON
OFF
See
notes
J4 - On/ J5- Pins 1 & 2
J4 - Off/ J5- Pins 2 & 3
Table 2-5 Dual Audio Panel with Observer (-0400) Function, DIP switch settings
Dual PAC24 Observer (-0400) w Expansion (P/N
11606)- Crew Panel- 28 Volt Aircraft
Dual PAC24 Observer (-0400) w Expansion (P/N
11606)- Observer Panel- 28 Volt Aircraft
SW2
SW3
SW4
SW5
SW2
SW3
SW4
SW5
1
ON
OFF
OFF
ON
1
ON
OFF
OFF
ON
2
OFF
ON
ON
ON
2
OFF
ON
ON
ON
3
OFF
OFF
ON
OFF
3
OFF
OFF
ON
ON
4
ON
ON
OFF
See
notes
4
ON
ON
OFF
See
notes
J4- On/ J5- Pins 1 & 2
J4- Off/ J5- Pins 2 & 3
Table 2-6 Dual Audio Panel with observer (-0400) and with Expansion (P/N 11606)