Cisco Systems 15501 manual Figure C-1 RS-232 and RJ-45 Connector Pinouts

Appendix C Connector Pinouts

Figure C-1 RS-232 and RJ-45 Connector Pinouts

RS-232

(DB-9 connector, female)

					data		(RxD) (TxD)
								data
[1]	NC		ReceiveTransmitNC						Ground
		[2]		[3]		[4]		[5]

	NC		[6]	[7]	[8]	[9]
			(RTS)
	Send Send			(CTS)
to
		to
Request Clear

Alarm out

(RJ-45 connector)

4 3 2 1

Pair 4

Pair 3

Pair 2

Pair 1

68381

Pair 1 (pins 1—2): Shorted if LOS exists

Pair 2 (pins 3—4): Shorted if fault exists

Pair 3 (pins 5—6): Shorted if either power supply fails

Pair 4 (pins 7—8): Uncommitted (always shorted)

	Cisco ONS 15501 User Guide
C-2	78-14134-02, Release 2.0