Black Box LR5100A-T User Manual
Page 92
Interface Pinouts
84
RS442 & RS530 Link Pinouts
The connector shown here and pinouts described here correspond to the connector labeled
“RS530” on the back of the unit.
DB25 Female DTE
13
1
25
14
Contact
Number
Circuit
Circuit
Name
Direction
To From
DCE DCE
1
Shield
Protective Ground
NA
2
BA (A)
Transmitted Data
X
3
BB (A)
Received Data
X
4
CA (A)
Request to Send
X
5
CB (A)
Clear to Send
X
6
CC (A)
Data Set Ready
X
7
AB
Signal Ground
NA
8
CF (A)
Received Line Signal Detector
X
9
DD (B)
Receive Signal Element Timing (DCE Source)
X
10
CF (B)
Received Line Signal Detector
X
11
DA (B)
Transmit Signal Element Timing (DTE Source)
X
12
DB (B)
Transmit Signal Element Timing (DCE Source)
X
13
CB (B)
Clear to Send
X
14
BA (B)
Transmitted Data
X
15
DB (A)
Transmit Signal Element Timing (DCE Source)
X
16
BB (B)
Received Data
X
17
DD (A)
Receive Signal Element Timing (DCE Source)
X
18
LL
Local Loopback
X
19
CA (B)
Request to Send
X
20
CD (A)
Data Terminal Ready
X
21
RL
Remote Loopback
X
22
CC (B)
Data Set Ready
X
23
CD (B)
Data Terminal Ready
X
24
DA (A)
Transmit Signal Element Timing (DTE Source)
X
25
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Figure D-7 RS530 Link Pinouts
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.