Cisco Systems EIA-TIA-232 User Manual
Doc. No.
78-3816-01 Rev. A0
Catalyst 1800 Token Ring Switch Cable Kit Guide
This guide provides configuration and connection instructions for the EIA/TIA-232 console/modem
cable and the adapters used when connecting a PC, a VT series terminal, or a modem to the Catalyst
1800TokenRingswitch to access out-of-band management via theEIA/TIA-232 DB-9male console
port.
Note EIA/TIA-232 was known as recommended standard RS-232 before its acceptance as a
standard by the Electronic Industries Association (EIA) and Telecommunications Industry
Association (TIA).
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Management terminal and modem requirements are as follows:
• VT 320/420-series terminal or VT-type terminal running emulation programs for the VT series
• IBM or compatible PC running a VT-series emulation software package
• Hayes-compatible modem
This guide also provides the following pin assignments:
• DB-9 console port connector on the Catalyst 1800 chassis
• DB-9 PC connector
1
Connecting to a VT-Series Terminal
• DB-25 VT-series connector
• DB-25 modem connector
The Catalyst 1800 console cable kit (part number 78-1188-01) includes
• One 6-foot (1.8-meter) length of unshielded twisted pair (UTP) EIA/TIA-232 cable with RJ-45
connectors at each end
• One RJ-45 to DB-9 female adapter (for console port connection)
• One RJ-45 to DB-9 female adapter (for PC connection)
• One RJ-45 to DB-25 female adapter (for VT terminal connection)
• One RJ-45 to DB-25 male adapter (for modem connection)
Connecting to a VT-Series Terminal
Follow these steps to connect a VT 320/420-series terminal to a Catalyst 1800 Token Ring switch
(see Figure 1):
Step 1 Plug either end of the EIA/TIA-232 cable intothe 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 female adapter labelled “VT series.”
Step 4 Connect the VT-series DB-25 female adapter to the DB-25 male adapter on the cable
extending from the VT terminal’s COMM port.
Step 5 Turnon the terminal and access the setup directory. Set the followingparameters on your
terminal:
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.
2 Catalyst 1800 Token Ring Switch Cable Kit Guide
Connecting to an IBM PC or Compatible
Figure 1 Connecting a VT-Series Terminal to a Catalyst 1800 Switch
8
7
6
5
4
3
2
1
8 TOKEN RING
Pwr A
Sys Status
Pwr B
Failure
4TR + FDDI
Pwr A
Sys Status
Pwr B
Failure
connector/port interface
Ring Status
Port Activity
16 Mbps
1
Ring Status
Port Activity
16 Mbps
DB-9 console
2
Status
Activity
Wrap
A
B
Catalyst 1800
4
3
Bypass
H8710
RS-232 cable
VT series adapter
DB-25 male adapter
to VT terminal VT 320/340 series terminal
Connecting to an IBM PC or Compatible
Follow these steps to connect an IBM PC or compatible to a Catalyst 1800 switch (see Figure 2).
Note that the PC must be running a VT terminal emulation program.
Step 1 Plug either end of the EIA/TIA-232 cable intothe 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-9 female adapter labelled “PC.”
Step 4 Connect the DB-9 female adapter to the appropriate male communications port on the
PC.
Step 5 Turn on the PC 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.
Catalyst 1800 Token Ring Switch Cable Kit Guide 3
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