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Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
OL-26701-02
Chapter 3 Installing Modules and Cables in the Chassis
Installing and Removing Modular Port Adapters
Checking the Installation, page 3-8

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 Preparing to Install
Modular Line Cards (MLCs) or Modular Port Adapters (MPAs) section of the Cisco ASR 9000 Series
Aggregation Services Router Ethernet Line Card Installation Guide for a list of parts and tools required
for installation.
Caution 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 Figure 3-5.)
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 or switch 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 3-5 Handling a Modular Port Adapter (MPA)

Online Insertion and Removal

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.
Managed OIR
A managed online insertion and removal of Modular port adapters (MPAs) is comprised of these
steps:
1. Shut down the MPA with the hw-module subslot 0/0/1 shutdown command.
2. Confirm that the LEDs have gone from green to off.
H6420
Metal carrier
Printed circuit board