Quatech user manual DS-100 connector definitions for EIA/TIA-232-E

The DS-100 connects to peripheral equipment through male D-9 connectors. Adapters are available to convert these connectors into standard D-25 male connectors. The standard serial port connections are listed in Figure 14.

RS-232 Signal		DTE Connection		DCE Connection
Description
		D-9	D-25	D-9	D-25
Data Carrier Detect	(DCD)	1	8	1	8
Receive Data	(RxD)	2	3	3	2
Transmit Data	(TxD)	3	2	2	3
Data Terminal Ready	(DTR)	4	20	6	6
Signal Ground		5	7	5	7
Data Set Ready	(DSR)	6	6	4	20
Request To Send	(RTS)	7	4	8	5
Clear To Send	(CTS)	8	5	7	4
Ring Indicator	(RI)	9	22	9	22

Figure 14 --- DS-100 connector definitions for EIA/TIA-232-E
	13
	25
	12
	24
	11
	23
	10
5	22
9	9
4	21
8	8
3	20
7	7
2	19
6	6
1	18
	5
	17
	4
D-9 connector	16
(CN1 and CN2)	3
	15
	2
	14
	1
	D-25 connector
	(using adapter cable)

Figure 15 --- DS-100 Output connectors

DS-100 User’s Manual 6-3