3Com 3C17539 Installation Manual page 22

22 C 1: P
HAPTER RODUCT
n
O
VERVIEW
Table 15 Management 10Base-T/100Base-TX port specifications
Item
Max. transmission segment over the selected
medium
Service
The following table describes the status LEDs for the management
10Base-T/100Base-TX port.
Table 16 Status LEDs for the management 10Base-T/100Base-TX port
LED Status
LINK OFF
ON
ACT OFF
Blinking
RS232/485 port
■
The RS232/485 port uses RJ-45 connector, for connecting external PoE power
frame when supported and monitoring its status.
Table 17 RS232/485 port specifications
Item
Connector
Number of ports
Service
Console port
■
The Console port uses an RJ-45 connector. It can be connected to a background
terminal for system debugging, maintenance, management, and host software
loading.
Table 18 Console port specifications
Item
Connector
Standard
Baud rate
Transmission
segment
Service
You can choose your own baud rate for the Console port.
AUX port
■
No link is present.
A link is present.
No packets are transmitted/received on the port.
Packets are being transmitted/received on the port.
Description
RJ-45
One RS 232 port and one RS485 port
The port for monitoring and communication with the external subsystem,
such as external PoE power supply module
Description
RJ-45
Asynchronous EIA/TIA-232
9600 bps (default)
15 m (49 ft.)
Connects a serial port of a local PC and runs terminal emulation on the
PC.
Description
100 m (328 ft.) over the category-5 twisted
pair cable (crossover cable is required).
System program upgrade and network
management