User's Manual

Trailblazer Installation and User Manual version 1.03
13
13
E1
13
E5
38
M1
38
M5
14
E2
14
E6
39
M2
39
M6
15
E3
15
E7
40
M3
40
M7
16
E4
16
E8
41
M4
41
M8
17
Ground
17
Ground
42
Ground
42
Ground
If a standard telephone cable is used, the connections may be brought to pre-wired
punch blocks using two 25 pair telephone cables. The location of the signals is shown
in the following table as they appear on a standard punch block. The punch block
terminals are numbered from top to bottom. The 50 pin Centronics connector pins
(abbreviated Ctrnx) are included for reference.
50 pin
Ctrnx
Punch
Term
Signal
name
50 pin
Ctrnx
Punch
Term
Signal
name
26
1
Transmit Audio 1-
26
1
Transmit Audio 5-
1
2
Transmit Audio 1+
1
2
Transmit Audio 5+
27
3
Transmit Audio 2+
27
3
Transmit Audio 6+
2
4
Ground
2
4
Ground
28
5
Ground
28
5
Ground
3
6
Transmit Audio 2-
3
6
Transmit Audio 6-
29
7
Transmit Audio 3-
29
7
Transmit Audio 7-
4
8
Transmit Audio 3+
4
8
Transmit Audio 7+
30
9
Transmit Audio 4+
30
9
Transmit Audio 8+
5
10
Ground
5
10
Ground
31
11
Ground
31
11
Ground
6
12
Transmit Audio 4-
6
12
Transmit Audio 8-
32
13
Receive Audio 1-
32
13
Receive Audio 5-
7
14
Receive Audio 1+
7
14
Receive Audio 5+
33
15
Receive Audio 2+
33
15
Receive Audio 6+
8
16
Ground
8
16
Ground
34
17
Ground
34
17
Ground
9
18
Receive Audio 2-
9
18
Receive Audio 6-
35
19
Receive Audio 3-
35
19
Receive Audio 7-
10
20
Receive Audio 3+
10
20
Receive Audio 7+
36
21
Receive Audio 4+
36
21
Receive Audio 8+
11
22
Ground
11
22
Ground
37
23
Ground
37
23
Ground
12
24
Receive Audio 4-
12
24
Receive Audio 8-
38
25
M1
38
25
M5
13
26
E1
13
26
E5
39
27
M2
39
27
M6
14
28
E2
14
28
E6
40
29
M3
40
29
M7
15
30
E3
15
30
E7
41
31
M4
41
31
M8