Nortel Networks 553-3001-211 manual QPC841 Quad Serial Data Interface card Page 863

QPC841 Quad Serial Data Interface card Page 863 of 894

Table 269

Connector J2 pin assignments (Part 1 of 2)

Pin
Number	Port	Signal	Purpose in DTE mode	Purpose in DCE mode
1		FGD	Frame ground	Frame ground
2		TD	Transmitted data	Transmitted data
3		RD	Received data	Received data
4		RTS	Request to send (not used)	Request to send (Note 2)
5	2	CTS	Clear to send (Note 1)	Clear to send
6		DSR	Data set ready (Note 1)	Data set ready
7		GND	Ground	Ground
8		CD	Carrier detect (Note 1)	Carrier detect (not Used)
20		DTR	Data terminal ready	Data terminal ready (Note 2))
9		TD	Transmitted data	Transmitted data
10		RD	Received data	Received data
11		RTS	Request to send (not used)	Request to send (Note 2))
12	3	CTS	Clear to send (Note 1)	Clear to send
13		DSR	Data set ready (Note 1)	Data set ready
25		GND	Ground	Ground
24		CD	Carrier detect (Note 1)	Carrier detect (not used)
23		DTR	Data terminal ready	Data terminal ready (Note 2))
14		TD	Transmitted data	Transmitted data
15		RD	Received data	Received data
16		RTS	Request to send (not used)	Request to send (Note 2))
17	4	CTS	Clear to send (Note 1)	Clear to send
18		DSR	Data set ready (Note 1)	Data set ready

Circuit Card Description and Installation