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16- OR 32-PORT 10/100 PHYSICAL LAYER ETHERNET SWITCH
3.6 Serial Port Interface
Serial port COM1 is an RS-232 DB9 female connector that’s wired so it can be
connected directly to a PC-compatible serial port with a standard “straight” serial
cable (DB9 serial cable with a male connector on one end and a female connector
on the other end, wired pin 1 to pin 1, pin 2 to pin 2, etc.), which is included. The
serial port can also be configured to operate as a separate communications port.
Table 3-2. RS-232 connector pinouts.
Pin
IBM
®
PC
Switch COM1
1
DCD Input
DCD Output
2
Receive Data Input
Transmit Data Output
3
Transmit Data Output
Receive Data Input
4
DTR Output
Connected to pin 8
5
Ground
Ground
6
DSR Input
DSR Output
7
RTS Output
No connection
8
CTS Input
Connected to pin 4
9
RI Input
No connection
Figure 3-1. 16-port switch controlled by the RS-232 serial interface.
16-port switch
Summary of Contents for SW595A
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