Hardware Installation
2−26 CM 4000 Installation and Operating Manual

Figure 2−31. Cable for connecting CM 4000 to UDI−1B RS−422 port.

1
6
R− 2
7
3
T−
8
4
9
5
R+
T−
to CM 4000
serial port UDI−1B
RS−422 Port
G Ground
R− Receive minus
R+ Receive plus
T+ Transmit plus
T− Transmit minus
DB9P
(male)
DB9P
(male)
= twisted pair
1
6
2
7
3
8
4
9
5
T+ R−
R+
T+
G G
R+
T−
1
6
2
7
3
8
4
9
5
R−
T+
G
UDI pinouts may vary − field reports
indicate that a straight−through
cable should be tried first.

Figure 2−32. Cables for connecting CM 4000 to UDI−1B RS−232 port.

1
6
R− 2
7
3
T−
8
4
9
5
R−
T+
to CM 4000
serial port
G Ground
R− Receive minus
R+ Receive plus
T+ Transmit plus
T− Transmit minus
DB9P
(male)
= twisted pair
T+ R+
R+
T−
GG
Tx
Rx
DB25P
(male)
1
2
3
4
5
G
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
UDI−1B
RS−232 Port
Rx
Tx
G
RS−422/232
converter