Table 4. Card Edge Connector Pin Assignments (Solder Side)
(Component Side)
6
Card
Alt #1
Alt #2
Function
User Connection
Edge
Conn
Conn
1
A
A
Ch #4 Rx Bal. Line In (-)
3
B
B
Ch #4 Rx Mute
5
C
C
Ch #4 Rx Bal. Line In (+)
7
D
D
Ch #4 Rx UnBal Line In
9
E
E
Ch #3 Rx UnBal Line In
11
F
F
Ch #3 Rx Bal Line In (+)
13
H
H
Ch #3 Rx Bal. Line In (-)
15
J
J
Ch #2 Rx Bal. Line In (-)
17
K
K
Ch #3 Rx Mute
19
L
L
Ch #2 Rx UnBal Line In
21
M
M
Ch #2 Rx Bal Line In (+)
23
N
N
Ch #2 Rx Mute
25
P
P
Ch #1 Rx Unbal Line In
27
R
R
Ch #1 Rx Bal Line In (+)
29
S
S
Ch #1 Rx Bal. Line In (-)
31
T
T
Ch #1 Rx Mute
33
U
U
Ch #4 Tx Bal. Line Out (+)
35
V
V
Ch #3 Tx Bal. Line Out (+)
37
W
W
Ch #2 Tx Bal. Line Out (+)
39
X
X
Pos. 12 Vdc Return (Gnd)
41
Y
Y
Ch #1 Tx Bal. Line Out (+)
43
Z
Z
No Connection
45
A
AA
Sum Audio Out
47
B
BB
Mic Audio In
49
C
CC
Mic PTT
51
D
DD
N/A
53
E
EE
No Connection
55
F
FF
Position 12 Vdc Input
Card
Alt #1
Alt #2
Function
User Connection
Edge
Conn
Conn
2
1
1
No Connection
4
2
2
Ch #4 RXAGND
6
3
3
Ch #4 Mute Gnd
8
4
4
No Connection
10
5
5
No Connection
12
6
6
Ch #3 RXAGND
14
7
7
Ch #3 Mute Gnd
16
8
8
No Connection
18
9
9
No Connection
20
10
10
Ch #2 RXAGND
22
11
11
Ch #2 Mute Gnd
24
12
12
No Connection
26
13
13
No Connection
28
14
14
Ch #1 RXAGND
30
15
15
Ch #1 Mute Gnd
32
16
16
No Connection
34
17
17
Ch #4 Tx Bal. Line Out (-)
36
18
18
Ch #3 Tx Bal. Line Out (-)
38
19
19
Ch #2 Tx Bal. Line Out (-)
40
20
20
Pos. 12 Vdc Return (Gnd)
42
21
21
Ch #1 Tx Bal. Line Out (-)
44
22
22
Sum Audio In
46
23
23
Earpiece Audio Out
48
24
24
Speaker Mute
50
25
25
MICAGND
52
26
26
No Connection
54
27
27
N/A
56
28
28
Pos. 12 Vdc Input
