Transition Networks RS-530, V.35, RS-449, CPSVT26XX, RS-232, X.21 J1-26, J1-02, Txce/Rxc+, J1-15

Transition Part Number 21DCE-3

X.21 DCE High Speed Serial Cable Pin-out (CAB-SS-21FC)

26-Pin	Signal Name	Note	Direction	DB-15 Pin	Signal Name
Drain wire	Shield		—	Shell/cover	Shield_GND
Shell				J2-01
J1-21	MODE_2	All Pins listed		J2-08	CCT GND
J1-26	GND	connect to J1-26
		GND
J1-05	RXD/TXD+	Twisted pair	<—	J2-02	TRANSMIT+
J1-18	RXD/TXD-		<—	J2-09	TRANSMIT-
J1-01	TXD/RXD+	Twisted pair	—>	J2-04	RECEIVE+
J1-14	TXD/RXD-		—>	J2-11	RECEIVE-
J1-11	CTS/RTS+	Twisted pair	<—	J2-03	CONTROL+
J1-10	DSR/DTR+		<—	J2-10	CONTROL-
J1-08	RTS/CTS	Twisted pair	—>	J2-05	INDICATION+
J1-09	DTR/DSR+		—>	J2-12	INDICATION-
J1-02	TXCE/RXC+	Twisted pair	—>	J2-06	TIMING+
J1-15	TXCE/RXC+		—>	J2-13	TIMING-

Confidential	Page 8	02/27/03
Rev 0.2