COMPUTER LEADS
An over view of computer leads in general use.
    9 WAY - 25 WAY
	1 - 8
	2 - 3		GENERAL STRAIGHT LEAD USED FOR TALKING TO
	3 - 2		MOST TELEPHONE SYSTEMS.
	4 - 20		THE 9 WAY PLUG IS GENERALLY FEMALE AND THE
	5 - 7		25 WAY PLUG MALE.
	6 - 6
	7 - 4
	8 - 5
	9 - 22
25 WAY - 25 WAY
TBA
9 WAY - 25 WAY (MODEM LEAD)
TBA
SDX INDEX LEADS

	INDEX				PC	PC	MODEM
    9 WAY SERIAL		      9 WAY   25 WAY   25 WAY
	2   RX				2	3	2
	3   TD				3	2	3
	5   GND				5	7	7

 

  
 
BACK Home page BT/GPO Telephones Search the Site Glossary of Telecom Terminology Quick Find All Telephone Systems

Last revised: October 30, 2022

FM