Digi CM - Manual (Page 143)

Hardware Information
Chapter 17 143
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.
*Not available on the Digi CM 48
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.
Note: The cable length restrictions common to RS-232 cables apply to the Digi CM
serial cable as well.
Serial Port Pinouts
The Digi CM uses an RJ-45 connector for serial ports. Pin assignments are
listed in the following table.
LED Function
System
Power On when power is supplied
Ready On when system is ready to run
PC On when a PC device is running
Ethernet
100Mbps On when 100Base-TX connection is detected
LINK On when connected to an Ethernet network
Act Blinks when there is activity on the Ethernet port
Serial
port*
In use On when the serial port is ready to run
Rx/Tx Blinks when there is traffic on the serial port
Pin Description
1 CTS
2 DSR
3 RxD
4 GND
5
DCD Note: Inbound signal can also be
used as a second ground.
6 TxD
7 DTR
8 RTS