Transition Networks X.21, V.35, RS-449, RS-530, CPSVT26XX, RS-232 Transition Part Number 449DTE-3

Transition Part Number 449DTE-3

RS-449 DTE High Speed Serial Cable Pin-out (CAB-SS-449MT)

26-Pin	Signal Name	Note	Direction	DB-37 Pin	Signal Name
Drain wire	Shield		—	Shell/cover	Shield_GND
Shell				J2-01
J1-22	MODE_I	All Pins listed	—	J2-19	SG
J1-24	MODE_DCE	connect to J1-26	—	J2-20	RC
J1-26	GND	GND		J2-37	SC
J1-01	TXD/RXD+	Twisted pair	—>	J2-04	SD+
J1-14	TXD/RXD-		—>	J2-22	SD-
J1-03	TXC/TXC+	Twisted pair	<—	J2-05	ST+
J1-16	TXC/TXC-		<—	J2-23	ST-
J1-05	RXD/TXD+	Twisted pair	<—	J2-06	RD+
J1-18	RXD/TXD-		<—	J2-24	RD-
J1-08	RTS/CTS	Twisted pair	—>	J2-07	RS+
J1-09	RTS/CTS-		—>	J2-25	RS-
J1-04	RXC/TXCE+	Twisted pair	<—	J2-08	RT+
J1-17	RXC/TXCE-		<—	J2-26	RT-
J1-11	CTS/RTS+	Twisted pair	<—	J2-09	CS+
J1-10	CTS/RTS-		<—	J2-27	CS-
J1-13	LL/LL+		—>	J2-10	LL
J1-12	DTR/DSR+	Twisted pair	<—	J2-11	DM+
J1-25	DTR/DSR-		<—	J2-29	DM-
J1-07	DTR/DSR+	Twisted pair	—>	J2-12	TR+
J1-20	DTR/DSR-		—>	J2-30	TR-
J1-02	TXCE/RXC+	Twisted pair	—>	J2-17	TT+
J1-15	TXCE/RXC-		—>	J2-35	TT-
J1-06	DCD/DCD+	Twisted pair	<—	J2-13	RR+
J1-19	DCD/DCD-		<—	J2-31	RR-

Confidential	Page 5	02/27/03
Rev 0.2