PA-H HSSI Port Adapter Installation and Configuration
Removing and Installing the PA-H Port Adapter
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Removing and Installing Port Adapters

Table Of Contents

Removing and Installing Port Adapters

Handling Port Adapters

Online Insertion and Removal

Warnings and Cautions

Port Adapter Removal and Installation

Catalyst RSM/VIP2—Removing and Installing a Port Adapter

Catalyst 6000 Family FlexWAN Module—Removing and Installing a Port Adapter

Cisco 7100 Series Routers—Removing and Installing a Port Adapter

Cisco 7200 Series Routers and Cisco 7200 VXR Routers—Removing and Installing a Port Adapter

Cisco uBR7200 Series Routers—Removing a Port Adapter

Cisco uBR7200 Series Routers—Installing a Port Adapter

Cisco 7201 Router—Removing and Installing a Port Adapter

Cisco 7301 Router—Removing and Installing a Port Adapter

Cisco 7304 PCI Port Adapter Carrier Card—Removing and Installing a Port Adapter

Cisco 7401ASR Router—Removing and Installing a Port Adapter

VIP—Removing and Installing a Port Adapter

Connecting PA-H Interface Cables

Connecting HSSI Cables

Connecting Null Modem Cables


Removing and Installing Port Adapters


This chapter describes how to remove the PA-H port adapter from supported platforms, how to install a new or replacement PA-H, and how to connect cables.

This chapter contains the following sections:

Handling Port Adapters

Online Insertion and Removal

Warnings and Cautions

Port Adapter Removal and Installation

Connecting PA-H Interface Cables

Handling Port Adapters

Each port adapter circuit board is mounted to a metal carrier and is sensitive to electrostatic discharge (ESD) damage.


Note When a port adapter slot is not in use, a blank port adapter must fill the empty slot to allow the router or switch to conform to electromagnetic interference (EMI) emissions requirements and to allow proper airflow across the port adapters. If you plan to install a new port adapter in a slot that is not in use, you must first remove the blank port adapter.



Caution When powering off the router, wait a minimum of 30 seconds before powering it on again.


Caution Always handle the port adapter by the carrier edges and handle; never touch the port adapter components or connector pins. (See Figure 3-1.)

Figure 3-1 Handling a Port Adapter

Online Insertion and Removal

Several platforms support online insertion and removal (OIR) of port adapters; therefore, you do not have to power down routers when removing and replacing a PA-H in the Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco uBR7200 series routers, Cisco 7201 router, Cisco 7301 router, or Cisco 7401ASR router.

Although the Catalyst RSM/VIP2, Catalyst 6000 family FlexWAN module, Cisco 7304 PCI port adapter carrier card, and VIP support OIR, individual port adapters do not. To replace port adapters, you must first remove the Catalyst RSM/VIP2, Catalyst 6000 family FlexWAN module, Cisco 7304 PCI port adapter carrier card, or VIP from the chassis and then install or replace port adapters as required. If a blank port adapter is installed on the Catalyst RSM/VIP2, Catalyst 6000 family FlexWAN module, Cisco 7304 PCI port adapter carrier card, or VIP on which you want to install a new port adapter, you must first remove the Catalyst RSM/VIP2, Catalyst 6000 family FlexWAN module, Cisco 7304 PCI port adapter carrier card, or VIP from the chassis and then remove the blank port adapter.


Caution To prevent system problems, do not remove port adapters from the Catalyst RSM/VIP2, Catalyst 6000 family FlexWAN module, Cisco 7304 PCI port adapter carrier card, or VIP or attempt to install other port adapters on the motherboard when the system is operating. To install or replace port adapters, first remove the Catalyst RSM/VIP2, Catalyst 6000 family FlexWAN module, Cisco 7304 PCI port adapter carrier card, or VIP from its interface processor slot.

It is wise to gracefully shut down the system before removing a port adapter that has active traffic moving through it. Removing a port adapter while traffic is flowing through the ports can cause system disruption. Once the port adapter is inserted, the ports can be brought back up.


Note As you disengage the port adapter from the router or switch, OIR administratively shuts down all active interfaces in the port adapter.


OIR allows you to install and replace port adapters while the router is operating; you do not need to notify the software or shut down the system power, although you should not run traffic through the port adapter you are removing while it is being removed. OIR is a method that is seamless to end users on the network, maintains all routing information, and preserves sessions.

The following is a functional description of OIR for background information only; for specific procedures for installing and replacing a port adapter in a supported platform, refer to the "Port Adapter Removal and Installation" section.

Each port adapter has a bus connector that connects it to the router. The connector has a set of tiered pins in three lengths that send specific signals to the system as they make contact with the port adapter. The system assesses the signals it receives and the order in which it receives them to determine if a port adapter is being removed from or introduced to the system. From these signals, the system determines whether to reinitialize a new interface or to shut down a disconnected interface.

Specifically, when you insert a port adapter, the longest pins make contact with the port adapter first, and the shortest pins make contact last. The system recognizes the signals and the sequence in which it receives them.

When you remove or insert a port adapter, the pins send signals to notify the system of changes. The router then performs the following procedure:

1. Rapidly scans the system for configuration changes.

2. Initializes newly inserted port adapters or administratively shuts down any vacant interfaces.

3. Brings all previously configured interfaces on the port adapter back to their previously installed state. Any newly inserted interface is put in the administratively shutdown state, as if it was present (but not configured) at boot time. If a similar port adapter type is reinserted into a slot, its ports are configured and brought online up to the port count of the originally installed port adapter of that type.


Note Before you begin installation, read Chapter 2, "Preparing for Installation," for a list of tools and equipment required for installation.


Warnings and Cautions

Observe the following warnings and cautions when installing or removing port adapters.


Caution Do not slide a port adapter all the way into the slot until you have connected all required cables. Trying to do so disrupts normal operation of the router or switch.


Note If a port adapter lever or other retaining mechanism does not move to the locked position, the port adapter is not completely seated in the midplane. Carefully pull the port adapter halfway out of the slot, reinsert it, and move the port adapter lever or other mechanism to the locked position.



Caution To prevent jamming the carrier between the upper and the lower edges of the port adapter slot, and to ensure that the edge connector at the rear of the port adapter mates with the connection at the rear of the port adapter slot, make certain that the carrier is positioned correctly, as shown in the cutaway illustrations in the "Port Adapter Removal and Installation" section.


Warning When performing the following procedures, wear a grounding wrist strap to avoid ESD damage to the card. Some platforms have an ESD connector for attaching the wrist strap. Do not directly touch the midplane or backplane with your hand or any metal tool, or you could shock yourself.


Port Adapter Removal and Installation

In this section, the illustrations that follow give step-by-step instructions on how to remove and install port adapters in each of the following supported platforms:

Catalyst RSM/VIP2—Removing and Installing a Port Adapter

Catalyst 6000 Family FlexWAN Module—Removing and Installing a Port Adapter

Cisco 7100 Series Routers—Removing and Installing a Port Adapter

Cisco 7200 Series Routers and Cisco 7200 VXR Routers—Removing and Installing a Port Adapter

Cisco uBR7200 Series Routers—Removing a Port Adapter

Cisco uBR7200 Series Routers—Installing a Port Adapter

Cisco 7201 Router—Removing and Installing a Port Adapter

Cisco 7301 Router—Removing and Installing a Port Adapter

Cisco 7304 PCI Port Adapter Carrier Card—Removing and Installing a Port Adapter

Cisco 7401ASR Router—Removing and Installing a Port Adapter

VIP—Removing and Installing a Port Adapter

Catalyst RSM/VIP2—Removing and Installing a Port Adapter

Catalyst 6000 Family FlexWAN Module—Removing and Installing a Port Adapter

Cisco 7100 Series Routers—Removing and Installing a Port Adapter

Cisco 7200 Series Routers and Cisco 7200 VXR Routers—Removing and Installing a Port Adapter

Cisco uBR7200 Series Routers—Removing a Port Adapter

Cisco uBR7200 Series Routers—Installing a Port Adapter

Cisco 7201 Router—Removing and Installing a Port Adapter

Cisco 7301 Router—Removing and Installing a Port Adapter

Cisco 7304 PCI Port Adapter Carrier Card—Removing and Installing a Port Adapter

You can install one single-width port adapter in a Cisco 7304 PCI Port Adapter Carrier Card. This section provides step-by-step instructions for removing and installing a port adapter in a Cisco 7304 PCI Port Adapter Carrier Card.


Warning When performing the following procedures, wear a grounding wrist strap to avoid ESD damage to the Cisco 7304 PCI Port Adapter Carrier Card. Some platforms have an ESD connector for attaching the wrist strap. Do not directly touch the midplane or backplane with your hand or any metal tool, or you could shock yourself.


To remove and install a port adapter in a Cisco 7304 PCI Port Adapter Carrier Card, refer to Figure 3-2 and do the following:


Step 1 If the Cisco 7304 PCI Port Adapter Carrier Card is still in the router, you must remove the Cisco 7304 PCI Port Adapter Carrier Card before removing a port adapter.

Step 2 To remove the port adapter from the Cisco 7304 PCI Port Adapter Carrier Card, turn the port adapter lock from its locked and horizontal position shown in A of Figure 3-2 to its unlocked and vertical position shown in B of Figure 3-2.

Step 3 Grasp the handle of the port adapter and pull the port adapter from the Cisco 7304 PCI Port Adapter Carrier Card. (You have already disconnected the cables from the port adapter when removing the Cisco 7304 PCI Port Adapter Carrier Card).

Step 4 To insert the port adapter in the Cisco 7304 PCI Port Adapter Carrier Card, locate the guide rails inside the Cisco 7304 PCI Port Adapter Carrier Card that hold the port adapter in place. They are at the top left and top right of the port adapter slot and are recessed about an inch, as shown in C of Figure 3-2.

Step 5 Carefully slide the port adapter in the Cisco 7304 PCI Port Adapter Carrier Card until the port adapter makes contact with the port adapter interface connector. When fully seated, the port adapter front panel should be flush with the face of the Cisco 7304 PCI Port Adapter Carrier Card.

Step 6 After the port adapter is properly seated, turn the port adapter lock to its locked and horizontal position, as shown in A of Figure 3-2.


Figure 3-2 illustrates how to remove and install a port adapter in a Cisco 7304 PCI Port Adapter Carrier Card.

Figure 3-2 Cisco 7304 PCI Port Adapter Carrier Card—Port Adapter Removal and Installation

Cisco 7401ASR Router—Removing and Installing a Port Adapter

VIP—Removing and Installing a Port Adapter

Connecting PA-H Interface Cables

This section describes the procedures for connecting the HSSI cable or the null modem cables to the PA-H.

Connecting HSSI Cables

This section describes the procedure for connecting HSSI cables to the PA-H port adapter.

On a single PA-H, you can use one HSSI connection. HSSI cables are available only from Cisco Systems; they are not available from outside commercial cable vendors.


Caution Although the HSSI receptacle and the HSSI cable are similar to the SCSI-II format, they are not identical. The HSSI cable specification is more restrictive than that for the SCSI-II. If a SCSI-II cable is used instead of an HSSI cable, proper operation cannot be guaranteed

Use the following procedure to connect an HSSI cable to a PA-H:


Step 1 Attach the HSSI cable directly to the port on the PA-H. (See Figure 3-3.)


Note Port adapters have a handle attached, but this handle is not shown in Figure 3-3. The HSSI cable plug and HSSI port receptacle are keyed for proper connection. Use the HSSI cable strain relief slide lock whenever an HSSI cable is connected to the receptacle on the PA-H.


Figure 3-3 Connecting an HSSI Cable—Front View

Step 2 Attach the network end of your HSSI cable to your T3, E3, or SONET DSU, or other external HSSI equipment.


This completes the procedure for attaching HSSI cables to the PA-H. If you require a null modem cable for your HSSI connection, see the "Connecting Null Modem Cables" section that follows; otherwise, proceed to the "Configuring the Interfaces" section on page 4-2.

Connecting Null Modem Cables

This section describes the procedure for connecting null modem cables to the PA-H port adapter.

The null modem cable can connect two routers directly back to back. The two routers must be in the same location, and can be two Cisco 7000 series routers, two Cisco 7500 series routers, two Cisco 7200 series routers, two Cisco uBR7200 series routers, two Cisco 7201 routers, two Cisco 7301 routers, two Cisco 7304 routers, two Cisco 7401ASR routers, or one of each. In this setup, you can verify the operation of the HSSI or link directly the routers in order to build a larger node. The null modem cable uses the same 50-pin connectors as the HSSI cable, but uses the pinouts listed in Table 1-2.

To connect two routers, attach a null modem cable between the HSSI ports on the routers. Enable the internal transmit clock in both routers by entering the command hssi internal-clock. All router platforms use the same hssi internal-clock command to enable the internal transmit clock on the HSSI.


Note In the Cisco 7206 and Cisco 7206VXR router shelves, you define interfaces by type and physical shelf/port adapter/port locations. For information on interface addresses for the supported platforms, see the "Identifying Interface Addresses" section on page 1-15.


The following examples show the configuration commands needed to prepare for a null modem cable connection in all supported platforms:

Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# 
 
Enter configuration commands...

For Catalyst 5000 family switches with the Catalyst RSM/VIP2:

Router(config)# interface hssi 0/0
Router(config-if)# hssi internal-clock 
Router(config-if)# Ctrl-Z

For Catalyst 6000 family switches with the Catalyst 6000 FlexWAN module:

Router(config)# interface hssi 3/0/0
Router(config-if)# hssi internal-clock 
Router(config-if)# Ctrl-Z 

For Cisco 7000 series and Cisco 7500 series routers with the VIP:

Router(config)# interface hssi 1/0/0
Router(config-if)# hssi internal-clock 
Router(config-if)# Ctrl-Z 

For Cisco 7100 series, Cisco 7200 series, Cisco uBR7200 series routers, Cisco 7201 routers, Cisco 7301 routers, Cisco 7401ASR routers, and the Cisco 7304 routers:

Router(config)# interface hssi 1/0 
Router(config-if)# hssi internal-clock 
Router(config-if)# Ctrl-Z

Note For the Cisco 7206 and Cisco 7206VXR router shelves, the interface address specified in the Cisco 7200 series example above would be preceded by a shelf number. For example, the command interface hssi 5/1/0 specifies the first interface of the port adapter in slot 1 of Cisco 7206 or Cisco 7206VXR router shelf 5.


Be sure to configure the HSSI port on both routers for an internal transmit clock. When the internal clock is enabled, the TC LED on the PA-H goes on. When the internal clock is enabled in both routers, the TC and RC LEDs on both of the connected HSSI ports go on.

When you disconnect the null modem cable, you must also disable the internal transmit clock with the command no hssi internal-clock. Use this command to turn off the transmit clock for each interface on both routers.