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LED Indicators
Use the LED indicators to confirm your attachment to the network and that the
Digi CM is able to send and receive data.
System
Ethernet
Serial
port
About Serial Port Cabling
The Digi CM simplifies cabling. The RJ-45 8-pin configuration matches all
SUN and Cisco RJ-45 console port configurations, enabling CAT 5 cabling
without pinout concerns. Three DB-25 and one DB-9 adapters come in the
package. A DB-25 male, a DB-25 female, and a DB-9 adapter support
console management applications. A DB-25 male adapter provides a modem
connection. See the cable adapter information that follows later in this chapter.
Serial Port Pinouts
The Digi CM uses an RJ-45 connector for serial ports. Pin assignments are
listed in the following table.
1
2
3
4
5
6
7
Chapter 14
LED
Power
Ready
PC
100Mbps
LINK
Act
In use
Rx/Tx
Note:
The cable length restrictions common to RS-232 cables apply to the Digi CM
serial cable as well.
Pin
CTS
DSR
RxD
GND
DCD Note: Inbound signal can also be used
as a second ground.
TxD
DTR
Function
On when power is supplied
On when system is ready to run
On when a PC device is running
On when 100Base-TX connection is detected
On when connected to an Ethernet network
Blinks when there is activity on the Ethernet port
On when the serial port is ready to run
Blinks when there is traffic on the serial port
Description
Hardware Information
95
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