PA-4E 10BaseT Ethernet Port Adapter Installation and Configuration
Overview: PA-4E 10BaseT Ethernet Port Adapter Installation and Configuration
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Overview

Table Of Contents

Overview

Port Adapter Overview

Ethernet 10BaseT Overview

IEEE 802.3 10BaseT Specifications

LEDs

Cables, Connectors, and Pinouts

Port Adapter Slot Locations on the Supported Platforms

Catalyst RSM/VIP2 Slot Numbering

Cisco 7100 Series router Slot Numbering

Cisco 7200 Series and Cisco uBR7200 Series Routers Slot Numbering

Cisco 7301 Router Slot Numbering

Cisco 7304 PCI Port Adapter Carrier Card Slot Numbering

Cisco 7401ASR Router Slot Numbering

VIP Slot Numbering

Identifying Interface Addresses

Catalyst RSM/VIP2 Interface Addresses

Cisco 7100 Series Routers Interface Addresses

Cisco 7200 Series and Cisco uBR7200 Series Routers Interface Addresses

Cisco 7301 Router Interface Addresses

Cisco 7304 PCI Port Adapter Carrier Card Interface Addresses

Cisco 7401ASR Router Interface Addresses

VIP Interface Addresses


Overview


This chapter describes the PA-4E port adapter and contains the following sections:

Port Adapter Overview

Ethernet 10BaseT Overview

IEEE 802.3 10BaseT Specifications

LEDs

Cables, Connectors, and Pinouts

Port Adapter Slot Locations on the Supported Platforms

Identifying Interface Addresses

Port Adapter Overview

The PA-4E provides up to four IEEE 802.3 Ethernet 10BaseT interfaces. (See Figure 1-1.) Each Ethernet 10BaseT interface allows a maximum bandwidth of 10 Mbps, for a maximum aggregate bandwidth of 40 Mbps. All four ports run at line (wire) speed.


Note Cisco 7500 supports full-duplex mode on PA-4E.


Figure 1-1 PA-4E—Faceplate View

Ethernet 10BaseT Overview

The term Ethernet is commonly used for all carrier sense multiple access/collision detection (CSMA/CD) local-area networks (LANs) that generally conform to Ethernet specifications, including IEEE 802.3. Ethernet Version 2 and IEEE 802.3 were based on, and developed shortly after, Ethernet Version 1. The slight differences between Ethernet and IEEE 802.3 are implemented in hardware, and both are supported automatically by the PA-4E without any hardware configuration changes. Together, Ethernet and IEEE 802.3 are the most widely used LAN protocols. They are well suited to applications where a local communication medium must carry sporadic, occasionally heavy traffic at high-peak data rates.

Stations on a CSMA/CD LAN can access the network at any time. Before sending data, the station listens to the network to see if it is already in use. If it is, the station waits until the network is not in use, and then transmits. A collision occurs when two stations listen for network traffic, hear none, and transmit simultaneously. When this happens, both transmissions are damaged, and the stations must retransmit. The stations detect the collision and use backoff algorithms to determine when they should retransmit.

Both Ethernet and IEEE 802.3 are broadcast networks, which means that all stations see all transmissions. Each station must examine received frames to determine whether it is the intended destination and, if it is, pass the frame to a higher protocol layer for processing. IEEE 802.3 specifies several different physical layers, and Ethernet defines only one.

Each IEEE 802.3 physical layer protocol has a name that summarizes its characteristics in the format speed/signaling method/segment length, where speed is the LAN speed in Mbps, signaling method is the signaling method used (either baseband or broadband), and segment length is the maximum length between stations in hundreds of meters.

IEEE 802.3 10BaseT Specifications

Table 1-1 summarizes the characteristics of IEEE 802.3 Ethernet and Ethernet Version 2 for 10BaseT.

Table 1-1 IEEE 802.3 and 10BaseT Ethernet Version 2 Physical Characteristics

Parameter
IEEE 802.3 Ethernet
10BaseT Ethernet

Data Rate (Mbps)

10

10

Signaling method

Baseband

Baseband

Maximum segment length (m)

500

100 (UTP)

Media

50-ohm coax (thick)

Unshielded twisted-pair (UTP)

Topology

Bus

Star


Table 1-2 lists the cabling specifications for 10-Mbps transmission over UTP and FTP cables.

Table 1-2 Cable Specifications for 10-Mbps 10BaseT

Parameter
RJ-45

Cable specification

Category 3 or Category 5 UTP1 with 22 to 24 AWG2

Maximum segment length

328 ft (100 m) for 10BaseT

Maximum network length

9,186 ft (2,800 m) (with 4 repeaters)

1 We do not supply Category 3 and Category 5 UTP RJ-45 cables; these cables are available commercially.

2 AWG = American Wire Gauge. This gauge is specified by the EIA/TIA-568 standard.



Note The IEEE 802.3 Ethernet specifications call the 4E device an end station, and the 4E has a built-in transceiver. The 4E interfaces connect directly to a hub or repeater.


LEDs

The PA-4E contains four status LEDs (one for each port), called the link LEDs and one enabled LED. (See Figure 1-2.)

The following conditions must be met before the PA-4E is enabled:

The PA-4E is correctly connected and receiving power.

A valid system software image for the port adapter has been downloaded successfully.

The system recognizes the PA-4E, a Catalyst RSM/VIP2 with a PA-4E, or a VIP with a PA-4E.

If any of the above conditions are not met, or if the initialization fails for other reasons, the enabled LED does not go on.

Figure 1-2 LEDs on the PA-4E

Table 1-3 lists LED colors and indications.

Table 1-3 PA-4E LEDs

LED Label
Color
State
Meaning

ENABLED

Green

On

Port adapter is enabled for operation.

LINK 0 through 4

Green

On

10BaseT port is active and is receiving a carrier signal from the network.


Cables, Connectors, and Pinouts

The interface connectors on the PA-4E are four individual RJ-45 receptacles. You can use all four simultaneously. Each connection supports IEEE 802.3 and Ethernet 10BaseT interfaces compliant with appropriate standards. The RJ-45 connections require external transceivers. We do not supply Category 5 UTP RJ-45 cables; these cables are available commercially.

Figure 1-3 shows the RJ-45 connectors. Table 1-4 lists the pinouts and signals for the RJ-45 connectors.

Figure 1-3 4E RJ-45 Connections, Plug, and Receptacle


Caution The ports labeled "Ethernet," "10BaseT," "Token Ring," "Console," and "AUX" are safety extra-low voltage (SELV) circuits. SELV circuits should only be connected to other SELV circuits. Because the BRI circuits are treated like telephone-network voltage, avoid connecting the SELV circuit to the telephone network voltage (TNV) circuits.

Table 1-4 4E RJ-45 Connector Pinout

Pin
Description

1

Transmit data + (TxD+)

2

TxD-

3

Receive data + (RxD+)

6

RxD-



Note Referring to the RJ-45 pinout in Table 1-4, proper common-mode line terminations should be used for the unused Category 5, UTP cable pairs 4/5 and 7/8. Common-mode termination reduces the contributions to electromagnetic interference (EMI) and susceptibility to common-mode sources. Wire pairs 4/5 and 7/8 are actively terminated in the RJ-45 port circuitry in the PA-4E.


Depending on your 4E RJ-45 interface cabling requirements, use the pinouts in Figure 1-4 and Figure 1-5.

Figure 1-4 Straight-Through Cable Pinout, 4E RJ-45 Connection to a Hub or Repeater

Figure 1-5 Crossover Cable Pinout, 4E RJ-45 Connections Between Hubs and Repeaters

Port Adapter Slot Locations on the Supported Platforms

This section discusses port adapter slot locations on the supported platforms. The illustrations that follow summarize slot location conventions on each platform:

Catalyst RSM/VIP2 Slot Numbering

Cisco 7100 Series router Slot Numbering

Cisco 7200 Series and Cisco uBR7200 Series Routers Slot Numbering

Cisco 7301 Router Slot Numbering

Cisco 7304 PCI Port Adapter Carrier Card Slot Numbering

Cisco 7401ASR Router Slot Numbering

VIP Slot Numbering

Catalyst RSM/VIP2 Slot Numbering

The Catalyst RSM/VIP2 can be installed in any slot except the top slots, which contain the supervisor engine modules. The Catalyst RSM/VIP2 in a Catalyst 5000 family switch does not use interface processor slot numbering; therefore, slots are not numbered in Figure 1-6. The PA-4E can be installed into either port adapter slot 0 or slot 1 on a Catalyst RSM/VIP2. Figure 1-6 shows a Catalyst RSM/VIP2 with two port adapters installed.


Note The Catalyst 5500 switch has 13 slots. Slot 1 is reserved for the supervisor engine module. If a redundant supervisor engine module is used, it would go in slot 2; otherwise, slot 2 can be used for other modules. Slot 13 is a dedicated slot, reserved for the ATM Switch Processor (ASP) module. Refer to the Catalyst 5000 Series Route Switch Module Installation and Configuration Note for any additional slot restrictions for the Catalyst RSM/VIP2.


Figure 1-6 Catalyst 5000 Family Switch with Port Adapters Installed on Catalyst RSM/VIP2

Cisco 7100 Series router Slot Numbering

The PA-4E can be installed in port adapter slot 3 in Cisco 7120 series routers, and in port adapter slot 4 in Cisco 7140 series routers. Figure 1-7 shows a Cisco 7120 with a port adapter installed in slot 3. Figure 1-8 shows a Cisco 7140 with a port adapter installed in slot 4.

Figure 1-7 Port Adapter Slots in the Cisco 7100 Series Router—Cisco 7120 Series

Figure 1-8 Port Adapter Slots in the Cisco 7100 Series Router—Cisco 7140 Series

Cisco 7200 Series and Cisco uBR7200 Series Routers Slot Numbering

Figure 1-9 shows a Cisco 7206 with port adapters installed. In the Cisco 7206 (including the Cisco 7206 and Cisco 7206VXR as router shelves in a Cisco AS5800 Universal Access Server), port adapter slot 1 is in the lower left position, and port adapter slot 6 is in the upper right position. (The Cisco 7202 and Cisco 7204 are not shown; however, the PA-4E can be installed in any available port adapter slot.)

Figure 1-9 Port Adapter Slots in the Cisco 7206

Figure 1-10 shows the slot numbering of port adapters in a Cisco uBR7246 or Cisco uBR7246 VXR router. The port adapter slots are numbered slot 1 and slot 2 for the Cisco uBR7246 and Cisco uBR7246 VXR and slot 1 for the Cisco uBR7223. (Slot 0 is always reserved for the Fast Ethernet port on the I/O controller—if present.)

Figure 1-10  Port Adapter Slots in the Cisco uBR7246 and Cisco uBR7246 VXR

Cisco 7301 Router Slot Numbering

Figure 1-11 shows the front view of a Cisco 7301 router with a port adapter installed. There is only one port adapter slot in a Cisco 7301 router.

Figure 1-11 Cisco 7301 Router with a Port Adapter Installed

Cisco 7304 PCI Port Adapter Carrier Card Slot Numbering

The Cisco 7304 PCI Port Adapter Carrier Card accepts one single-width port adapter. Figure 1-12 shows a Cisco 7304 PCI Port Adapter Carrier Card with a port adapter installed.

Figure 1-12 Cisco 7304 PCI Port Adapter Carrier Card—Port Adapter Installed

The Cisco 7304 PCI Port Adapter Carrier Card installs in Cisco 7304 router module slots 2 through 5. See Figure 1-13 for module slot numbering on a Cisco 7304 router.

Figure 1-13 Module Slots on the Cisco 7304 Router

Cisco 7401ASR Router Slot Numbering

Figure 1-14 shows the front view of a Cisco 7401ASR router with a port adapter installed. There is only one port adapter slot in a Cisco 7401ASR router.

Figure 1-14 Cisco 7401ASR Router with a Port Adapter Installed

VIP Slot Numbering

Figure 1-15 shows a partial view of a VIP motherboard with installed port adapters. With the motherboard oriented as shown in Figure 1-15, the left port adapter is in port adapters slot 0, and the right port adapter is in port adapter slot 1. The slot numbering is the same for the Catalyst RSM/VIP2. The slots are always numbered 0 and 1.

Figure 1-15 VIP Motherboard with Two Port Adapters Installed—Horizontal Orientation


Note In the Cisco 7000, Cisco 7507, and Cisco 7513 chassis, the VIP is installed vertically. In the Cisco 7010 and Cisco 7505 chassis, the VIP is installed horizontally.


Figure 1-16 Interface Slot Numbers—Cisco 7505 shown

Identifying Interface Addresses

This section describes how to identify interface addresses for the PA-4E in supported platforms. Interface addresses specify the actual physical location of each interface on a router or switch.

Interfaces on the PA-4E installed in a router maintain the same address regardless of whether other port adapters are installed or removed. However, when you move a port adapter to a different slot, the first number in the interface address changes to reflect the new port adapter slot number.

Interfaces on a PA-4E installed in a VIP maintain the same address regardless of whether other interface processors are installed or removed. However, when you move a VIP to a different slot, the interface processor slot number changes to reflect the new interface processor slot.


Note Interface ports are numbered from left to right starting with 0.


See Table 1-5 for the interface address format.

Table 1-5 Identifying Interface Addresses 

Platform
Interface Address Format
Numbers
Syntax

Catalyst RSM/VIP2 in Catalyst 5000 family switches

Port-adapter-slot-number/interface-port-number

Port adapter slot-always 0 or 1

Interface port-0 through 3

0/1

Cisco 7120 series routers

Port-adapter-slot-number/interface-port-number

Port adapter slot-always 3

Interface port-0 through 3

3/1

Cisco 7140 series routers

Port-adapter-slot-number/interface-port-number

Port adapter slot-always 4

Interface port-0 through 3

4/0

Cisco 7200 series routers

Port-adapter-slot-number/interface-port-number

Port adapter slot-0 through 61

Interface port-0 through 3

3/1

Cisco uBR7223 router

Port-adapter-slot-number/interface-port-number

Port adapter slot- always 1

Interface port-0 through 3

1/0

Cisco uBR7246 and Cisco uBR7246 VXR routers

Port-adapter-slot-number/interface-port-number

Port adapter slot- always 1 or 2

Interface port-0 through 3

1/0

Cisco 7301 routers

Port-adapter-slot-number/interface-port-number

Port adapter slot-always 1

Interface port-0 through 3

1/0

Cisco 7304 PCI Port Adapter Carrier Card in Cisco 7304 routers

Port-adapter-slot-number/interface-port-number

Port adapter slot—router module slot 2 through 5

Interface port—0 through 3

3/0

Cisco 7401ASR routers

Port-adapter-slot-number/interface-port-number

Port adapter slot-always 1

Interface port-0 through 3

1/0

VIP in Cisco 7000 series or Cisco 7500 series routes

Interface-processor-slot-number/port-adapter-slot- number/interface-port-number

Interface processor slot-0 through 12 (depends on the number of slots in the router)

Port adapter slot-always 0 or 1 Interface port-0 through 3

3/1/0

1 Port adapter slot 0 is reserved for the Fast Ethernet port on the I/O controller (if present).


Catalyst RSM/VIP2 Interface Addresses

This section describes how to identify interface addresses used for the PA-4E on the Catalyst RSM/VIP2 in Catalyst 5000 family switches. The interface addresses is composed of a two part number in the format port-adapter-slot-number/interface-port-number.

See Table 1-5 for the interface address format.

Cisco 7100 Series Routers Interface Addresses

This section describes how to identify the interface addresses used for the PA-4E in Cisco 7100 series routers. The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table 1-5 for the interface address format.

Cisco 7200 Series and Cisco uBR7200 Series Routers Interface Addresses

This section describes how to identify the interface addresses used for the PA-4E in Cisco 7200 series routers or Cisco uBR7200 series routers. The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table 1-5 for the interface address format.

In Cisco 7200 series routers, port adapter slots are numbered from the lower left to the upper right, beginning with port adapter slot 1 and continuing through port adapter slot 2 for the Cisco 7202, slot 4 for the Cisco 7204 and Cisco 7204VXR, and slot 6 for the Cisco 7206 and Cisco 7206VXR. (Port adapter slot 0 is reserved for the optional Fast Ethernet port on the I/O controller—if present.)

The interface addresses of the interfaces on the PA-4E in port adapter slot 1 are 1/0 through 1/3 (port adapter slot 1 and interfaces 0 through 3). If the PA-4E was in port adapter slot 2, these same interfaces would be numbered 2/0 through 2/3 (port adapter slot 2 and interfaces 0 through 3).

In the Cisco uBR7200 series routers, port adapter slots are numbered slot 1 and slot 2 for the Cisco uBR7246 and Cisco uBr7246 VXR, and slot 1 for the Cisco uBR7223 (slot 0 is always reserved for the Fast Ethernet port on the I/O controller—if present). The number of additional ports depends on the number of ports on a port adapter.

The interface addresses of the interfaces on a PA-4E in port adapter slot 2 are 2/0, 2/1, 2/2, and 2/3. (port adapter slot 2 and interfaces 0 through 3). If the PA-4E was in port adapter slot 1, these same interfaces would be numbered 1/0 through 1/3 (port adapter slot 1 and interfaces 0 through 3).

Cisco 7301 Router Interface Addresses

This section describes how to identify the interface addresses used for the PA-4E in the Cisco 7301 router. In the Cisco 7301 router, slot 1 is the port adapter slot you use for the PA-4E. (See Figure 1-11.) The interface address is composed of a two-part number in the format port-adapter-slot-number/
interface-port-number
. See Table 1-5 for the interface address format.

Cisco 7304 PCI Port Adapter Carrier Card Interface Addresses

This section describes how to identify the interface addresses used for the PA-4E in the Cisco 7304 PCI Port Adapter Carrier Card in Cisco 7304 routers. The interface address is made of a two-part number in the format port-adapter-slot-number/interface-port-number.

The Cisco 7304 PCI Port Adapter Carrier Card installs into Cisco 7304 router module slots 2 through 5 (See Figure 1-13.) The port-adapter-slot-number is the Cisco 7304 router module slot number. For example, the interface address of port 0 on a PA-4E, in which the Cisco 7304 PCI Port Adapter Carrier Card is installed in Cisco 7304 router module slot 3, would be numbered 3/0.

Cisco 7401ASR Router Interface Addresses

This section describes how to identify the interface addresses used for the PA-4E in the Cisco 7401ASR router. In the Cisco 7401ASR router, slot 1 is the port adapter slot you use for the PA-4E. (See Figure 1-14.) The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table 1-5 for the interface address format.

VIP Interface Addresses

This section describes how to identify the interface addresses used for the PA-4E on a VIP in Cisco 7000 and Cisco 7500 series routers.


Note Although the processor slots in the 7-slot Cisco 7000 and Cisco 7507 and the 13-slot Cisco 7513 are vertically oriented and those in the 5-slot Cisco 7010 and Cisco 7505 are horizontally oriented, all Cisco 7000 series and Cisco 7500 series routers use the same method for slot and port numbering.


See Table 1-5 for the interface address format. The interface address is composed of a three-part number in the format interface-processor-slot-number/port-adapter-slot-number/interface-port-number.

If the VIP is inserted in interface processor slot 3, then the interface addresses of the PA-4E are 3/0/0 through 3/0/3 (interface processor slot 3, port adapter slot 0, and interfaces 0 through 3). If the port adapter was in port adapter slot 1 on the VIP, these same interface addresses would be numbered 3/1/0 through 3/1/3.


Note If you remove the VIP with the PA-4E from interface processor slot 3 and install it in interface processor slot 2, the interface addresses become 2/0/0 through 2/0/3.