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Interface Pinouts
89
RS530 To RS449 Conversion Cable
Transmitted Data (A)
Data Terminal Ready (A)
Transmitted Data (B)
Data Terminal Ready (B)
Received Data (A)
Receiver Signal Element Timing (DCE Source) (A)
Received Data (B)
Receiver Signal Element Timing (DCE Source) (B)
Received Line Signal Detector (A)
Transmit Signal Element Timing (DCE Source) (A)
Received Line Signal Detector (B)
Transmit Signal Element Timing (DCE Source) (B)
Data Set Ready (A)
Transmit Signal Element Timing (DTE Source) (A)
Data Set Ready (B)
Transmit Signal Element Timing (DTE Source) (B)
Request to Send (A)
Signal Ground
Request to Send (B)
Shield
Clear to Send (A)
Clear to Send (B)
D
B
2
5
M
A
L
E
2
20
14
23
3
17
16
9
8
15
10
12
6
24
22
11
4
7
19
1
5
13
D
B
3
7
M
A
L
E
/
F
E
M
A
L
E
4
12
22
30
6
8
24
26
13
5
31
23
11
17
29
35
7
19
25
1
9
27
Figure D-12 RS530 to RS449 Conversion Cable
The connecting cable must be a shielded cable.
Circuits which are paired (contain an (A) and (B) reference) should be connected to
twisted pairs within the connecting cable.
This cable is used to connect an RS530 link to an RS449 device. The cable converts from
a DB25 connector to a DB37 connector.