Cisco ASR 9901 Hardware Installation Guide

Handling Modular Port Adapters (MPAs)
Each modular port adapter (MPA) circuit board is mounted on a metal carrier, and is sensitive to electrostatic
discharge (ESD) damage. Before you begin installation, refer to the Cisco ASR 9000 Series Aggregation
Services Router Ethernet Line Card Installation Guide for a list of parts and tools required for installation.
Always handle the modular port adapter (MPA) by the carrier edges and handle; never touch the modular port
adapter (MPA) components or connector pins. (see the following figure.)
Caution
When a bay is not in use, a blank ASR 9000 MPA Slot Filler (A9K-MPA-FILR) must fill the empty bay to
allow the router to conform to electromagnetic interference (EMI) emissions requirements and to allow proper
airflow across the installed modules. If you plan to install a modular port adapter (MPA) in a bay that is not
in use, you must first remove the blank.
Figure 87: Handling a Modular Port Adapter (MPA)
Online Insertion and Removal
Installing an MPA in the Cisco ASR 9001 router will cause brief traffic interruption on the fixed ports due to
the network processor (NP) initializing.
Note
Cisco ASR 9001 router modular port adapters (MPAs) support online insertion and removal (OIR).
Modular port adapters (MPAs) support three types of OIR:
• Soft OIR
Soft OIR uses the IOS XR hw-module subslot 0/0/1 reload, hw-module subslot 0/0/1 shutdown, and
no hw-module subslot 0/0/1 shutdown commands to complete online insertion and removal. Refer to
the Hardware Redundancy and Node Administration Commands on the Cisco ASR 9000 Series Router
chapter of the Cisco ASR 9000 Series Aggregation Services Router System Management Command
Reference online for command syntax.
Cisco ASR 9901, ASR 9001, and ASR 9001-S Routers Hardware Installation Guide
80
Installing Modules and Cables in the Chassis
Handling Modular Port Adapters (MPAs)

Cisco ASR 9901 Specifications

General

Brand	Cisco
Model	ASR 9901
Category	Network Router
Language	English