Cisco 7000 SERIES PA 8 PORT T1 MC ADAPTER WITH CSU DSU Guida Specifiche
1-7
Multichannel DS1/PRI Port Adapter Installation and Configuration
OL-3525-03
Chapter 1 Overview
Cables and Connections
During the system bootup process and microcode download, if an error occurs, the port status LEDs flash
yellow a number of times, pause, and then repeat the flashes. Count the number of flashes to determine
the error.
yellow a number of times, pause, and then repeat the flashes. Count the number of flashes to determine
the error.
lists the LED error indications that might appear.
In all of the preceding error modes, the CPU continually loops and the system does not proceed to the
microcode download.
microcode download.
After the system successfully completes the CPU boot process and microcode download, the front-panel
port status LEDs on the multichannel DS1/PRI port adapter show the various system states and
functions. (See
port status LEDs on the multichannel DS1/PRI port adapter show the various system states and
functions. (See
.)
Cables and Connections
The DS1/PRI interface receptacles on the multichannel DS1/PRI port adapter are RJ-48C receptacles for
T1 (100-ohm). You can use all interface receptacles simultaneously.
T1 (100-ohm). You can use all interface receptacles simultaneously.
Note
After you properly connect a port to a line, it takes approximately 30 seconds for Cisco IOS software to
report that the line is up.
report that the line is up.
Table 1-4
LED Error States
Number of
Yellow
Flashes
Yellow
Flashes
Description
1
Memory tests failed.
2
PLX mailbox test failed.
3
Incomplete data on download.
4
Checksum error on download.
5
Invalid command (flashing does not repeat, but
processing continues).
processing continues).
6
Unexpected return from downloaded operational
code.
code.
7
Processor exception has occurred.
Table 1-5
LEDs for Port Status Indications after Boot Completion
LED Color
State
Description
Green
On
Port adapter is receiving good
signal.
signal.
Yellow
On
Port adapter is in loopback
mode.
mode.
None
Off
Not receiving good signal. Not
in loopback mode.
in loopback mode.