Cisco 7603 - Modular Expansion Base Installation Manual page 115

Chapter 4 Troubleshooting
Table 4-8
server.
Table 4-8
Possible Problem
Flow control
configured on the
terminal conflicts
with the
EIA/TIA-232
control signals
supported by the
access server
console port
(RJ-45 to DB-25)
Hardware
problem
Obtaining Technical Assistance
If you are unable to solve a problem on your own based on the solutions provided, consult a Cisco
customer service representative for assistance. When you call, ensure that you have the following
information:
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OL-5077-7
outlines the solutions to troubleshoot unresponsive terminal connection to non-configured
Booting: Unresponsive Terminal Connection to Unconfigured Access Server
Solution
Check whether flow control is configured on your terminal.
1.
Disable all flow control on the terminal. With flow control
2.
enabled, the terminal waits indefinitely for a CTS signal
because the RJ-45 console port on the access server does not
assert CTS.
For information on how to check for and disable flow control on
your specific terminal, consult the documentation provided by
your terminal manufacturer.
Alternatively, you can "strap," by providing the proper
3.
voltage on the CTS signal lead to make the signal active.
Find an unused signal that is known to be active and strap
CTS to it. The terminal sees CTS being asserted (indicating
that the access server is ready to receive data) and allows
input to be entered.
4. Connect your terminal to the auxiliary port of a configured
access server. The auxiliary port, unlike the console port,
asserts CTS, and the terminal will therefore allow input.
However, on a new access server with no configuration, this
is not an alternative because the bootup banners and setup
routine are seen only on the console port.
1. Check all hardware—including cabling (broken wires),
adapters (loose pins), access server ports, and the terminal
itself—for damage.
2. Replace any hardware that is damaged or excessively worn.
Chassis and module serial number.
Card information :Use the show module and show inventory command to determine which cards
are installed.
Cisco IOS software release number: Use the show version command to determine this number.
Brief description of the symptoms and steps to isolate and solve the problem.
Maintenance agreement or warranty information.
ROM images. (Use the show version executive command.)
Programmable ROM labels. (This information is printed on the physical chip, and an example is
shown in Figure 4-1.)
Obtaining Technical Assistance
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