PA-T3 Serial Port Adapter Installation and Configuration
Overview: PA-T3 Port Adapter Installation and Configuration
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Overview

Table Of Contents

Overview

Port Adapter Overview

Features

LEDs

Cables and Connectors

Management Information Base

Port Adapter Slot Locations on the Supported Platforms

Catalyst RSM/VIP2 Slot Numbering

Catalyst 6000 Family FlexWAN Module Slot Numbering

Cisco 7100 Series Routers 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

Catalyst 6000 Family FlexWAN Module 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-T3 port adapter and contains the following sections:

Port Adapter Overview

Features

LEDs

Cables and Connectors

Management Information Base

Port Adapter Slot Locations on the Supported Platforms

Identifying Interface Addresses

Port Adapter Overview

The PA-T3(=) serial port adapter is a single-width, one-port module that integrates data service unit (DSU) functionality into the Cisco router. The PA-T(=) provides one high-speed serial PA-T3 interface on Cisco 7100 series routers, Cisco 7200 series routers, Cisco uBR7200 series routers, Cisco 7301 routers, Cisco 7304 PCI Port Adapter Carrier Card in Cisco 7304 routers, Cisco 7401ASR routers, on the Versatile Interface Processor (VIP) in all Cisco 7000 series and Cisco 7500 series routers, on the Catalyst 6000 family FlexWAN module in the Catalyst 6000 family switches, and on the Catalyst RSM/VIP2 in the Catalyst 5000 family switches. (See Figure 1-1.)

The PA-2T3(=) serial port adapter is a single-wide, two-port module that integrates DSU functionality into the Cisco router. The PA-2T3(=) provides two high-speed serial PA-T3 interfaces on Cisco 7100 series routers, Cisco 7200 series routers, Cisco uBR7200 series routers, Cisco 7301 routers, Cisco 7304 PCI Port Adapter Carrier Card in Cisco 7304 routers, Cisco 7401ASR routers, on the second-generation VIP in all Cisco 7000 series and Cisco 7500 series routers, on the Catalyst 6000 family FlexWAN module in the Catalyst 6000 family switches, and on the Catalyst RSM/VIP2 in the Catalyst 5000 family switches. (See Figure 1-2.)

Serial network interfaces reside on modular port adapters, which provide a direct connection between the high-speed bus in the router and the external networks. The PA-T3 provides a full-duplex synchronous serial PA-T3 interface for transmitting and receiving data at rates of 44-45 megabits per second (Mbps) depending on the framing used.

The PA-T3 supports both 16- and 32-bit cyclic redundancy checks (CRCs). The default is 16-bit CRCs. To enable 32-bit CRCs, use a configuration command. For a description of the CRC function, see the "Configuring Cyclic Redundancy Checks" section.

Figure 1-1 PA-T3—Front View

Figure 1-2

PA-2T3—Front View

Features

The PA-T3 serial port adapter has the following features:

Single- or double-port T3 rate (45 Mbps) connectivity

Full-duplex synchronous serial DS3 interface

High-speed High-Level Data Link Control (HDLC) data

Integrated data service unit (DSU) functionality

Support for 16- and 32-bit cyclic redundancy checks (CRCs)

Support for C-bit, M13, and bypass framing

Support for ATM-Data Exchange Interface (DXI), Frame Relay, HDLC, Switched Multimegabit Data Service (SMDS), and Point-to-Point Protocol (PPP) serial encapsulations

Support for DS3 MIB (RFC 1407)

Support for remote and local loopback

B3ZS line coding

Scrambling and bandwidth reduction

Online insertion and removal (OIR)


Note Switched Multimegabit Data Service (SMDS) is supported when a switch that supports DXI3.2 is used at the Subscriber Network Interface (SNI).


LEDs

The PA-T3 has one status LED and six uplink port status LEDs (RCLK, FERF, OOF, AIS, RL, and LL) for the serial T3 port. (See Figure 1-3.)

Figure 1-3 LEDs on the PA-T3 Serial Port Adapter—Partial Front View

The PA-2T3 has one status LED and six uplink port status LEDs (RCLK, FERF, OOF, AIS, RL, and LL) for each serial T3 port. (See Figure 1-4.)

Figure 1-4 LEDs on the PA-2T3 Serial Port Adapter—Partial Front View

Table 1-1 describes the PA-T3 LEDs.

After system initialization, the enabled LED goes on, indicating that the port adapter has been enabled for operation.

The following conditions must be met before the PA-T3 serial port adapter is enabled:

The port adapter contains a valid microcode version that has been downloaded successfully.

The port adapter is correctly connected to the VIP or Catalyst RSM/VIP2 (Cisco 7000 series and Cisco 7500 series routers, or Catalyst 5000 series switches) and the midplane and is receiving power in the Cisco router.

The bus recognizes the port adapter.

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

Table 1-1 LEDs for Uplink Port Status

LED
Color
State
Description

ENABLED

Green

On

Indicates that port adapter is ready for operation.

Uplink Port Status
     

RCLK

Green

On

Indicates that a receive clock has been detected.

FERF

Yellow

On

Indicates that framer detected far end receive failure.

OOF

Yellow

On

Indicates that framer detected out of frame.

AIS

Yellow

On

Indicates that framer detected alarm indication signal.

RL

Yellow

On

Indicates that port is in remote loopback mode.

LL

Yellow

On

Indicates that port is in local loopback mode.


Cables and Connectors

The PA-T3 port adapter serial interface cable, which is a 75-ohm coaxial cable, connects your router to a T3 serial network. Serial cables conform to EIA/TIA-612 and EIA/TIA-613 specifications. The PA-T3 is a DSX-3 level interface. The serial ports on the PA-T3 serial port adapter are considered to be data terminal equipment (DTE) devices.

On a single PA-T3(=) serial port adapter, there is one T3 serial port, and on a single PA-2T3(=) serial port adapter, there are two T3 serial ports. Each T3 serial port has two connectors (receive and transmit), to which you connect the Cisco 75-ohm coaxial cable. The 75-ohm coaxial cable (Cisco part number CAB-ATM-DS3/E3[=]) for the PA-T3 serial port adapter is available only from Cisco Systems; it is not available from outside commercial cable vendors.

The Cisco PA-T3 75-ohm coaxial cable (see Figure 1-5) is available only in 10-foot (3.05-meter) lengths. Line build-out is programmable for up to 450 feet of 734A or equivalent coaxial cable or up to 225 for 728A or equivalent coaxial cable.

Figure 1-5 PA-T3 Serial Port Adapter Cable

Management Information Base

Management Information Base (MIB) attributes are readable and writable across the ILMI through use of the SNMP.

The one-port PA-T3 serial port adapter supports MIB-II (RFC 1213) and the DS3 interface MIB (RFC 1407).

The two-port PA-2T3 serial port adapter supports MIB-II (RFC 1213) and the DS3 interface MIB (RFC 1407).

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

Catalyst 6000 Family FlexWAN Module Slot Numbering

Cisco 7100 Series Routers 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-T3 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 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

Catalyst 6000 Family FlexWAN Module Slot Numbering

The Catalyst 6000 family FlexWAN module can be installed in any slot except slot 1, which is reserved for the supervisor engine. The PA-T3 can be installed into either port adapter bay 0 or bay 1 on a FlexWAN module. Figure 1-7 shows a FlexWAN module with two blank port adapters installed.


Note Slot 1 is reserved for the supervisor engine. If a redundant supervisor engine is used, it would go in slot 2; otherwise, slot 2 can be used for other modules.


Figure 1-7 Catalyst 6000 Family Switch with Blank Port Adapters Installed on FlexWAN Module

Cisco 7100 Series Routers Slot Numbering

The PA-T3 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 1-8 shows a Cisco 7120 with a port adapter installed in slot 3. Figure 1-9 shows a Cisco 7140 with a port adapter installed in slot 4.

Figure 1-8 Port Adapter Slots in the Cisco 7100 Series Router—Cisco 7120 Series

Figure 1-9

Port Adapter Slots in the Cisco 7100 Series Router—Cisco 7140 Series

Cisco 7200 Series and Cisco uBR7200 Series Routers Slot Numbering

Figure 1-10 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-T3 can be installed in any available port adapter slot.)

Figure 1-11 shows the slot numbering of port adapters in a Cisco uBR7246 and Cisco uBR7246VXR router. The port adapter slots are numbered slot 1 and slot 2 for the Cisco uBR7246 and Cisco uBR7246VXR router 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 7206

Figure 1-11

Port Adapter Slots in the Cisco uBR7246 and Cisco uBR7246VXR

Cisco 7301 Router Slot Numbering

The Cisco 7301 router has one port adapter slot. See Figure 1-12.

Figure 1-12 Port Adapter Slot on the Cisco 7301 Router

Cisco 7304 PCI Port Adapter Carrier Card Slot Numbering

The Cisco 7304 PCI Port Adapter Carrier Card accepts one single-width port adapter. Figure 1-13 shows a Cisco 7304 PCI Port Adapter Carrier Card with a port adapter installed.

Figure 1-13 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 1-14 for module slot numbering on a Cisco 7304 router.

Figure 1-14 Module Slots on the Cisco 7304 Router

Cisco 7401ASR Router Slot Numbering

Figure 1-15 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 1-15 Cisco 7401ASR Router with a Port Adapter Installed

VIP Slot Numbering

Figure 1-16 shows a partial view of a VIP motherboard with installed port adapters. With the motherboard oriented as shown in Figure 1-16, the left port adapter is in port adapter 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 1-16 VIP Motherboard with Two Port Adapters Installed—Horizontal Orientation


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


Interface processor slots are numbered as shown in Figure 1-17.

Figure 1-17 Interface Slot Numbers—Cisco 7505 shown

Identifying Interface Addresses

This section describes how to identify interface addresses for the PA-T3 in supported platforms. Interface addresses specify the actual physical location of each interface on a router or switch.

Interfaces on the PA-T3 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-T3 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.


Table 1-2 explains how to identify interface addresses.

Table 1-2 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 (PA-T3[=]) or 0 or 1 (PA-2T3[=])

0/1

Catalyst 6000 family FlexWAN module in Catalyst 6000 family switches

Module-slot-number/port-adapter-bay-
number/interface-port-number

Module slot number—21 through 6 or 9 (depending on the number of slots in the switch)

Port adapter bay—always 0 or 1

Interface port—0 (PA-T3[=]) or 0 or 1 (PA-2T3[=])

3/0/0

Cisco 7120 series routers

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

Port adapter slot—always 3

Interface port—0 (PA-T3[=]) or 0 or 1 (PA-2T3[=])

3/1

Cisco 7140 series routers

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

Port adapter slot—always 4

Interface port—0 (PA-T3[=]) or 0 or 1 (PA-2T3[=])

4/0

Cisco 7200 series routers

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

Port adapter slot—0 through 6 (depends on the number of slots in the router)2

Interface port—0 (PA-T3[=]) or 0 or 1 (PA-2T3[=])

1/0

Cisco uBR7223 router

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

Port adapter slot—always 12

Interface port—0 (PA-T3[=]) or 0 or 1 (PA-2T3[=])

1/0

Cisco uBR7246 and Cisco uBR7246VXR routers

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

Port adapter slot—always 1 or 22

Interface port—0 (PA-T3[=]) or 0 or 1 (PA-2T3[=])

1/2

Cisco 7301 routers

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

Port adapter slot—always 1

Interface port—0 (PA-T3[=]) or 0 or 1 (PA-2T3[=])

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—always 0 (for the one-port PA-T3[=]); 0 or 1 (for the two-port PA-2T3[=])

3/0

Cisco 7401ASR routers

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

Port adapter slot—always 1

Interface port—0 (PA-T3[=]) or 0 or 1 (PA-2T3[=])

1/0

VIP in Cisco 7000 series or
Cisco 7500 series routers

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 (PA-T3[=]) or 0 or 1 (PA-2T3[=])

3/1/0

1 Slot 1 is reserved for the supervisor engine. If a redundant supervisor engine is used, it must go in slot 2; otherwise, slot 2 can be used for other modules.

2 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 the interface addresses used for the PA-T3 on the Catalyst RSM/VIP2 in Catalyst 5000 family switches. The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number.

See Table 1-2 for the interface address format.

Catalyst 6000 Family FlexWAN Module Interface Addresses

This section describes how to identify the interface addresses used for the PA-T3 on the Catalyst FlexWAN module in the Catalyst 6000 family switches.The interface address is composed of a three-part number in the format module-number/port-adapter-bay-number/interface-port-number.

See Table 1-2 for the interface address format.

If the FlexWAN module is inserted in module slot 3, then the interface addresses of the PA-T3 are 3/0/0 and 3/0/1 (module slot 3, port adapter bay 0, and interfaces 0 and 1). If the port adapter was in port adapter bay 1 on the FlexWAN module, these same interface addresses would be numbered 3/1/0 and 3/1/1.


Note If you remove the FlexWAN module with the PA-T3 from module slot 3 and install it in module slot 6, the interface addresses become 6/0/0 and 6/0/1.



Note The FlexWAN module physical port address begins with slot 0, which differs from the conventional Catalyst 6000 family port address, which begins with slot 1.


Cisco 7100 Series Routers Interface Addresses

This section describes how to identify the interface addresses used for the PA-T3 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 1-2 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-T3 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 1-2 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 address of the interface on the PA-T3 in port adapter slot 1 is 1/0. The interface addresses of the interfaces on the PA-2T3 in port adapter slot 1 are 1/0 and 1/1.

In Cisco uBR7200 series routers, port adapter slots are numbered slot 1 and slot 2 for the Cisco uBR7246 and Cisco uBR7246VXR 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 individual interfaces always begin with 0. The number of additional interfaces depends on the number of interface ports on a port adapter.

Cisco 7301 Router Interface Addresses

This section describes how to identify the interface addresses used for the PA-T3 in the Cisco 7301 router. In the Cisco 7301 router, slot 1 is the port adapter slot you use for the PA-T3. (See Figure 1-12). The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table 1-2 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-T3 and PA-2T3 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 1-14.) The port-adapter-slot-number is the Cisco 7304 router module slot number. For example, the interface address of port 0 on a PA-T3, 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-T3 in the Cisco 7401ASR router. In the Cisco 7401ASR router, slot 1 is the port adapter slot you use for the PA-T3. (See Figure 1-15). The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table 1-2 for the interface address format.

VIP Interface Addresses

This section describes how to identify the interface addresses used for the PA-T3 on a VIP in Cisco 7000 series 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 and Cisco 7576 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 1-2 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-2T3 are 3/1/0 through 3/1/2 (interface processor slot 3, port adapter slot 1, and interfaces 0 through 2). If the port adapter was in port adapter slot 0 on the VIP, these same interface addresses would be numbered 3/0/0 through 3/0/2.


Note If you remove the VIP with the PA-2T3 (shown in Figure 1-17) from interface processor
slot 3 and install it in interface processor slot 2, the interface addresses become 2/1/0 through 2/1/2.