Avaya X330WAN manual Figure A.2 Avaya serial cable DTE X.21 Cable

DTE X.21

DTE X.21

Introduction

Figure A.2 shows the Avaya serial to X.21 cable and Table A.2 shows the pinouts. The arrows indicate the signal direction – --> means DTE to DCE and <-- means DCE to DTE.

Figure A.2 Avaya™ serial cable DTE X.21 Cable

14 1

Avaya™ serial cable DTE X.21

2613

P1

Pinouts

Table A.2 X.21 DCE Serial Cable Pinouts

CB0314

8 15

1 9

P2

Serial	Signal name	Note	Direction	DB-15
connector pin				connector
				pin
Drain wire		Shield GND		P2-1
P1-1	TXD+	Twisted pair #5	-->	P2-2
P1-14	TXD-		-->	P2-9
P1-8	RTS+	Twisted pair #3	-->	P2-3
P1-9	RTS-		-->	P2-10
P1-5	RXD+	Twisted pair #8	<--	P2-4
P1-18	RXD--		<--	P2-11
P1-11	CTS+	Twisted pair #2	<--	P2-5
P1-10	CTS-		<--	P2-12
P1-4	RXC+	Twisted pair #7	<--	P2-6
P1-17	RXC-		<--	P2-13
		Not connected		P2-14
				P2-15
				P2-7
P1-22		Not connected
P1-23

Avaya X330WAN User’s Guide 225