MRV Communications MR2228-S2C manual DTE Port

Table 3-1. Serial Cable Wiring

	Switch’s 9-Pin	Null Modem		PC’s 9-Pin
	Serial Port			DTE Port
2	RXD (receive data)	<----------------------------	3	TXD (transmit data)
3	TXD (transmit data)	----------------------------->	2	RXD (receive data)
5	SGND (signal ground)	------------------------------	5	SGND (signal ground)

The serial port’s configuration requirements are as follows:

•Default Baud rate—9,600 bps

•Character Size—8 Characters

•Parity—None

•Stop bit—One

•Data bits—8

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