Tellabs 8820 MSR, Установка системы

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PN 76.8820IM30-A Tellabs 8820 Multi-service Switch Router System Installation
3-4
Equipment Overview 8820 MSR Chassis
Front Panel
ACO Button
The 8820 MSR alarm cutoff (ACO) button provides the means to silence audible alarms as
well as activate hardware LED tests. Briefly pressing the button silences the current audible
alert, whereas pressing and holding the button down for a few seconds activates the LED
tests.
Serial Connector
Two DB-9 male serial connectors are provided at the front panel. See
Console Serial Connector,
on page A-15
for a list of the connector pinouts. When referring to the 8820 MSR serial ports
in the CLI, serial port 1 is the main port, and serial port 2 is the aux port. You can use either
port to log on, run diagnostics, and perform troubleshooting on the 8820 MSR, as
dependent on your physical configuration.
Ethernet Connector
The Ethernet (ENET) connector is a 10/100 Base-T Ethernet RJ-45 connector. This port
provides networks management access to the 8820 MSR. See
Ethernet (IP Management)
Connector, on page A-18
for a list of the pinouts
Alarms
The DB25 female connector output supports three visual alarms, three audible alarms, and
the ACO input. See
External Alarm Connector, on page A-17
for pinouts to the external alarm
interface.
Table 3-2 Alarm LED Description
LED
Alarm Status LED Color and Probable Causes
Off Green Red Yellow
CRIT
(Critical)
No alarm
events Not applicable
❑
System failure
❑
Hardware LED test
Not Applicable
MAJ
(Major)
No alarm
events Not applicable
❑
System Failure
❑
Hardware LED test
Not Applicable
MIN
(Minor)
No alarm
events Not applicable
Not Applicable
❑
System Failure
❑
Hardware
LED test