Cisco Systems MGX 8220 Broadband Network Modules

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Cisco MGX 8220 Installation and Configuration
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Chapter
Core Module Overview
ASC LED Indicators
The ASC LED indicators are locate d on the faceplate of the front card . Table 2-1 de s cr ibes t he LED
indicators.
Auto Card Restore
Auto card restore is a feature that allows a service module c ard to be removed and be hot plug replaced
with another service module card, keeping the same configuration. With this feature, the ASC maintai ns
a copy of the configuration for eac h a ct ive ser vice module.
Broadband Network Modules
The BNM card set provides the Cisco MGX 8220 trunk interface to a Cisco BPX 8600 series node.
There are two major types of BNMs, one supports a T3 or E3 trunk and one supports a 155 Mbps
SONET SMF trunk.
Each Cisco MGX 8220 shelf must be equipped with at least one BNM installed in slot 1 or slot 2. A
second, redundant BNM can also be installed in slot 1 or slot 2. The primary and the redundant BNMs
must be of the same type. Each BNM installed consists of a front and back card set.
In addition, the BNM provides
•External alarm interface
•Fan monitor interface
•Port for accepting an external T1 o r E1 cl oc k s our ce
Table2-1 ASC LED Indicators
Type of LED Color Meaning of LED
ACT Green On indicates the card is active.
STBY Yellow •Slow blin k w ithout active LED indicates the card is in the boot
state.
•Fast blink with active LED indicates the ASC is downloading to
another card or is being downloaded.
•Steady yellow indicates the card is in standby state. The
firmware is executing ADMIN code.
FAIL Red •Steady red with active and standby LEDs off indicates the card
is in the reset condition, the card has fa iled, or the card set is not
complete (no line module ).
•Steady red with active LED on indi cat es t he car d w as ac tive
prior to failing.
•Steady red with standby LED on indicates the card was in
standby prior to failing.
•Blinking red indicates the card is in the power up state.
LAN Green On indicates receive activity through t he LAN port. A gree n flash is
seen for every packet received.