Black Box Series 5000 Reference Manual page 41

DB25 MALE
2
14
3
16
8
10
6
22
4
19
5
13
20
23
17
9
15
12
24
11
7
1
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.
RS530 To RS449 Conversion Cable
Transmitted Data (A)
Transmitted Data (B)
Received Data (A)
Received Data (B)
Received Line Signal Detector (A)
Received Line Signal Detector (B)
Data Set Ready (A)
Data Set Ready (B)
Request to Send (A)
Request to Send (B)
Clear to Send (A)
Clear to Send (B)
Data Terminal Ready (A)
Data Terminal Ready (B)
Receiver Signal Element Timing (DCE Source) (A)
Receiver Signal Element Timing (DCE Source) (B)
Transmit Signal Element Timing (DCE Source) (A)
Transmit Signal Element Timing (DCE Source) (B)
Transmit Signal Element Timing (DTE Source) (A)
Transmit Signal Element Timing (DTE Source) (B)
Signal Ground
Shield
Figure 3 – 14 RS530 to RS449 Conversion Cable
Link Interfaces Reference
41
DB37 MALE/FEMALE
4
22
6
24
13
31
11
29
7
25
9
27
12
30
8
26
5
23
17
35
19
1