Black Box 1- Manual Do Utilizador
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724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
Page 55
Appendix B: Connector Pinouts
Appendix B. Connector Pinouts
B.1 DB9 M Connector
Figure B-1. DB9 M connector.
Table B-1. DB9 M connector pinout.
DB9 M Pin
RS-232
Direction (RS-232)
RS-422/485 4-Wire RS-485 2-Wire
1
DCD
Input
RDA (-)
—
2
RD
Input
RDB (+)
—
3
TD
Output
TDB (+)
Data B (+)
4
DTR
Output
TDA (-)
Data A (-)
5
GND
—
GND
GND
6
DSR
Input
—
—
7
RTS
Output
—
—
8
CTS
Input
—
—
9
—
—
—
—
B.2 Terminal Block
Figure B-2. Terminal block connector.
Table B-2. Terminal block connector pinout.
Terminal
RS-232
Direction (RS-232)
RS-422
RS-485
A
RTS
Output
TDA (-)
Data A (-)
B
TD
Output
TDB (+)
Data B (+)
C
CTS
Input
RDA (-)
—
D
RD
Input
RDB (+)
—
E
GND
—
GND
GND