Cisco 6160 Manuale di installazione dell'hardware - Pagina 9

Sfoglia online o scarica il pdf Manuale di installazione dell'hardware per Hardware di rete Cisco 6160. Cisco 6160 21. Without a pots splitter configuration
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Chapter 2

Preparing for Installation

2.1.4 General Maintenance Guidelines

This section covers the following topics:

•

2.1.4.1 Hot Swapping Cards

Hot swapping allows you to remove and replace cards without disconnecting the system power. The

Cisco 6160 chassis supports hot swapping for the following cards:

•

2.1.4.2 Hot Swapping Blower Trays and PEMs

The following sections detail the hot swapping guidelines for the blower tray and power entry

module (PEM).

Only a trained technician should install and remove the PEM and blower tray.

Caution

2.1.4.2.1 Blower Trays

The blower tray supports hot swapping. Hot swapping allows you to remove the blower tray without

disconnecting the system power. You do not need to power down the Cisco 6160 to replace the blower

tray. However, if you must remove the blower tray from an operating Cisco 6160, replace it within five

minutes. If that is not possible, power down the system to avoid thermal damage.

2.1.4.2.2 PEMs

The PEM is not hot swappable if there is only one PEM installed in the chassis. If you remove the only

operating PEM from the chassis, power down the system before you begin. Removing the only operating

PEM from the chassis will interrupt service for the entire system until you replace the PEM.

The PEM is hot swappable if there is a secondary PEM installed in the chassis. If the active PEM is

removed, the standby PEM becomes the active PEM and the system continues to operate.

OL-2190-02 B0

Hot Swapping Cards, page 2-9

Hot Swapping Blower Trays and PEMs, page 2-9

Installation and Replacement Suggestions, page 2-10

Quad-port flexi ATU-C (4xflexi), quad-port STU-C (4xSDSL), octal-port DMT ATU-C (8xDMT),

octal-port ITU-C (8xIDSL), and octal-port G.SHDSL SHTU-C (8xG.SHDSL) line cards—When the

system detects that you have added or removed a line card, it automatically runs diagnostic and

discovery routines and acknowledges the presence or absence of the line card. If you remove and

replace a line card with one of the same type, the newly installed line card receives the same

provisioning as the original card. The system resumes operation without any operator intervention.

Hot swapping line cards interrupts service for the subscribers assigned to that line card.

Note

DS3+T1/E1 IMA, DS3/2DS3, OC-3c/2DS3, or OC-3c/OC-3c NI-2 cards—Hot swapping active

NI-2 cards interrupts service for the entire system until the NI-2 card is replaced or until a redundant

NI-2 takes over system operations. However, you can hot swap standby NI-2 cards without

interrupting service.

Safety Requirements

Cisco 6160 Hardware Installation Guide

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