ADC ICX-250 Connector Type, Connector Pinouts, Electrical Installation, DCE DB25 Female Connector (Data Ports 1 and 2)

Connector Type Electrical Installation 45

Connector PinoutsDCE DB25 Female Connector (Data Ports 1 and 2)

Pin	Signal	Name	Mnemonic	Source	V.35	EIA-530A
1	Shield					X
2	Transmit Data	TXD+	BA (A)	DTE	X	X
3	Receive Data	RXD+	BB (A)	DCE	X	X
4	Request to Send	RTS+	CA (A)	DTE	X	X
5	Clear to Send	CTS+	CB (A)	DCE	X	X
6	DCE Ready	DSR+	CC	DCE	X	X
7	Signal Common		AB		X	X
8	Receive Line Signal Detector	DCD+	CF (A)	DCE	X	X
9	Receive Signal Element Timing	RXCLK-	DD (B)	DCE	X	X
10	Receive Line Signal Detector	DCD-	CF (B)	DCE		X
11	Transmit Signal Element Timing (DTE)	TXCLK	DA (B)	DTE		X
12	Transmit Signal Element Timing (DCE)	TXCLK-	DB (B)	DCE	X	X
13	Clear to Send	CTS-	CB (B)	DCE		X
14	Transmit Data	TXD-	BA (B)	DTE	X	X
15	Transmit Signal Element Timing (DCE)	TXCLK+	DB (A)	DCE	X	X
16	Receive Data	RXD-	BB (B)	DCE	X	X
17	Receive Signal Element Timing (DCE)	RXCLK+	DD (A)	DCE	X	X
18	Local Loopback	LL	LL	DTE		X
19	Request to Send	RTS-	CA (B)	DTE		X
20	DTE Ready	DTR+	CD	DTE		X
21	Remote Loopback	RL	RL	DTE		X
22	Ring Indicator		CE	DCE		X
23	Signal Common		AC			X
24	Transmit Signal Element Timing (DTE)	TXCLK	DA (A)	DCE
25	Test Mode	TM	TM			X

Note: For purposes of connection and function, the ICX-250 should be considered a DCE.

Issue 1, September 1998 ADCP-62-023

© 1998, ADC Telecommunications, Inc.