Cisco Cisco 1800 2800 3800 8-Port Async Sync EIA-232 Serial High-Speed WIC Guía De Información
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Ignoring Input Signals
By default, Cisco IOS Software requires some of the input leads on the physical interface to be asserted. With
lead manipulation, the user can configure the serial interface to ignore input signals. The syntax is shown in Table
3.
Table 3.
Lead Manipulation
Mode
Required Input Leads
Syntax to Ignore Input Leads
DTE
CTS, DCD, and DSR
[no] ignore {cts | dcd | dsr}
DCE
RTS and DTR
[no] ignore {dtr | local-loopback | rts}
Viewing the State of Input Signals
Cisco IOS Software will display the state of input signals on the physical interface using show commands:
●
For serial interfaces configured for synchronous communication, enter the Cisco IOS Software show
interface command.
●
For serial interfaces configured for asynchronous communication, enter the Cisco IOS Software show line
command.
Monitoring Input Signal Transition
Cisco IOS Software introduces new debugging commands to monitor lead transitions on the physical interface. A
user can enable debugging of lead transitions with the [no] debug serial lead-transitions [serial slot/port]
command.
Q. Are cable management solutions available for asynchronous ports?
A. Components Express offers patch panel solutions for the HWIC-8A and HWIC-16A. These patch panels
connect to the high-density asynchronous connectors and divide into individual RJ-45 jacks for each
asynchronous port. For more information, contact Components Express at:
Components Express Inc.
10330 Argonne Woods Drive, Suite 100
Woodridge, IL 60517-4995
Phone: 630 257-0605/800 578-6695 (outside Illinois)
Fax: 630 257-0603
Web:
http://www.componentsexpress.com/
Printed in USA
C67-466096-04 05/13