Garmin GMA 240 installation manual 4.2.1P2401 Connector, 1.J2401 Pin Assignments, Pin Name

4.2.1P2401 Connector

	Table 4-1. J2401 Pin Assignments
Pin	Pin Name	I/O
1	RESERVED	--
2	RESERVED	--
3	TEL AUDIO IN HI	IN
4	TEL AUDIO LO	--
5	TEL MIC AUDIO OUT HI	OUT
6	RESERVED	--
7	AUX2 AUDIO IN HI	IN
8	AUX2 AUDIO IN LO	--
9	COM 1 AUDIO IN HI	IN
10	COM 1 AUDIO LO	--
11	COM 1 MIC AUDIO OUT HI	OUT
12	COM 1 MIC KEY* OUT	OUT
13	COM 2 AUDIO IN HI	IN
14	COM 2 AUDIO LO	--
15	COM 2 MIC AUDIO OUT HI	OUT
16	MASQ INHIBIT* IN	IN
17	NAV 1 AUDIO IN HI	IN
18	NAV 1 AUDIO IN LO	--
19	NAV 2 AUDIO IN HI	IN
20	NAV 2 AUDIO IN LO	--
21	AUX1 AUDIO IN HI	IN
22	AUX1 AUDIO IN LO	--
23	RESERVED	--
24	RESERVED	--
25	RESERVED	--
26	RESERVED	--
27	RESERVED	--
28	RESERVED	--
29	CREW ISO* IN	IN
30	COM 2 MIC KEY* OUT	OUT
31	ALERT 1 AUDIO IN HI	IN
32	ALERT 1 AUDIO IN LO	--
33	PILOT MIC AUDIO IN HI	IN
34	PILOT MIC KEY* IN	IN
35	PILOT MIC AUDIO IN LO	--
36	RESERVED	--
37	RESERVED	--
38	RESERVED	--
39	RESERVED	--
40	PASS HEADSET AUDIO OUT LEFT	OUT
41	PASS HEADSET AUDIO OUT RIGHT	OUT
42	PASS HEADSET AUDIO OUT LO	--
43	ALERT 2,3 AUDIO IN LO	--
44	ALERT 2 AUDIO IN HI	IN

* Denotes Active Low (Inputs: ground to activate; Outputs: grounded when active)

Page 4-2	GMA 240 Installation Manual
Rev. A	190-00917-01