Digi Digi CM LED Indicators, About Serial Port Cabling, Serial Port Pinouts, Pin Description

Hardware Information

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.

LED		Function
	Power	On when power is supplied
System	Ready	On when system is ready to run
	PC	On when a PC device is running
	100Mbps	On when 100Base-TX connection is detected
Ethernet	LINK	On when connected to an Ethernet network
	Act	Blinks when there is activity on the Ethernet port
Serial	In use	On when the serial port is ready to run
port*
	Rx/Tx	Blinks when there is traffic on the serial port

*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.

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

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