Cisco Systems EIA/TIA-232 manual Connecting to a Modem

Connecting to a Modem

Figure 2 Connecting an IBM PC or Compatible to a Catalyst 1800 Switch

RJ-45 port connectors

8 TOKEN RING		1	2	3	4	5	6	7	8
		Ring Status
Pwr A	Sys Status	Port Activity
Pwr B	Failure	16 Mbps
		1	2	3	4
4TR + FDDI		Ring Status				Status	Wrap			Bypass
		Port Activity
Pwr A	Sys Status					Activity	B A
Pwr B	Failure	16 Mbps								H8711
								Catalyst 1800

DB-9 console	Port status
connector/port interface	LEDs

RS-232 cable

PC adapter PC or compatible

Connecting to a Modem

Follow these steps to connect an IBM PC or compatible to a Catalyst 1800 switch (see Figure 3). Note that the PC must be running a VT terminal emulation program.

Step 1 Plug either end of the EIA/TIA-232 cable into the RJ-45-to-DB-9 female adapter labelled “Console port.”

Step 2 Connect the console port female adapter to the male DB-9 console port on the front of the Catalyst 1800 chassis.

Step 3 Plug the RJ-45 connector at the other end of the EIA/TIA-232 cable into the

RJ-45-to-DB-25 male adapter labelled “Modem.”

Step 4 Connect the DB-25 male adapter to the appropriate female communications port on the modem.

Step 5	Turn on the modem and configure its VT emulation package with following parameters:
Transmit		9600
Bits per character (BPC)		8
Parity		None
Stop bit		1
Flow control		Off

After these parameters are set, you can access out-of-band management. Refer to the Catalyst 1800 Token Ring Switch User Guide for instructions on using the console interface.

4Catalyst 1800 Token Ring Switch Cable Kit Guide