HP UX 11i v2 Networking Software manual Summary, Glossary, Related Information

Table 11 provides pin diagrams for converting A6748A/A6749A RS-232 DB25 Serial Port to AD278A/AD279A RS-232 RJ45 Serial Port.

Table 11: Converting A6748A/A6749A RS-232 DB25 Serial Port to AD278A/AD279A RS-232 RJ45 Serial Port

DB25 Female	Converter -	RS 232 Signal	RS 232 Signal	RJ45 Pin
Port Pin	DB25 Male		Description	Number
Number	Port Pin			(AD278A/
(A6748A/	Number			AD279A
A6749A	(A6748A/			Solution)
Solution)	A6749A
	Solution)
Pin # 2		TXD	Transmitted Data	Pin # 5
Pin # 3		RXD	Received Data	Pin # 6
Pin # 4		RTS	Request to Send	Pin # 3
Pin # 5		CTS	Clear to Send	Pin # 8
Pin # 6		DSR	Data Set Ready	Pin # 2
Pin # 7		SG	Signal Ground	Pin # 7
Pin # 8		DCD	Data Carrier	Pin # 10
			Detect
Pin # 20		DTR	Data Terminal	Pin # 9
			Ready
Pin # 22		RI	Ring Indicator	Pin # 1

Summary

This paper discusses solutions for different cabling issues that are caused by RS-232 serial port pin- layout and port interface differences between the A6748A/A6749A serial PCI MUX solution and the AD278A/AD279A serial PCI MUX solution.

Glossary

Port Modules: Port modules are extended equipments that are used with 64-port serial MUX solution to provide RS-232 serial ports. One port module can be connected to PCI MUX 64-port adapter and others can be extended from the first port module.

Related Information

For more information about the A6748A/A6749A and AD278A/AD279A serial PCI MUX solutions, see the Multiplexers Documentation website at: http://www.docs.hp.com/en/netcom.html#Multiplexers