PA-T3 Serial Port Adapter Installation and Configuration Product Number: PA-T3(=) and PA-2T3(=) Platforms Supported: Cisco 7500 Series, Cisco 7000 Series, Cisco 7100 Series, Cisco 7200 Series, Cisco uBR7200 Series, Catalyst 5000 Series Switches Access Registrar, AccessPath, Any to Any, AtmDirector, CCDA, CCDE, CCDP, CCIE, CCNA, CCNP, CCSI, CD-PAC, the Cisco logo, Cisco Certified Internetwork Expert logo, CiscoLink, the Cisco Management Connection logo, the Cisco NetWorks logo, the Cisco Powered Network logo
Preface This preface describes how to find additional information on the PA-T3 and PA-2T3 serial port adapters and other Cisco products, services, and documentation.
Related Documentation Section Title Description Chapter 3 VIP2 and the PA-T3 Port Adapter Provides instructions for installing the PA-T3 port adapter on a VIP2 interface processor installed in Cisco 7500 or Cisco 7000 series routers. Chapter 4 Catalyst RSM/VIP2 and the PA-T3 Port Adapter Provides instructions for installing the PA-T3 port adapter on a Catalyst RSM/VIP2 installed in Catalyst 5000 series switches.
Cisco Connection Online — Route Switch Module Catalyst VIP2-15 and VIP2-40 Installation and Configuration Note (Document Number 78-4780-01) which shipped with your Catalyst RSM/VIP2 • For hardware installation and maintenance information on Cisco 7100 series routers, refer to the Cisco 7100 Series VPN Router Installation and Configuration Guide publication that shipped with your Cisco 7100 series router.
Cisco Documentation CD-ROM Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco’s customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
C H A P TER 1 Overview This chapter describes the one-port PA-T3 and two-port PA-2T3 serial port adapters. This chapter contains the following sections: • • • Port Adapter Overview, page 1-1 PA-T3 Serial Port Adapter Features, page 1-2 Management Information Base, page 1-3 Port Adapter Overview The PA-T3 serial port adapter is a single-width, one-port or two-port module that integrates data service unit (DSU) functionality into the Cisco router.
PA-T3 Serial Port Adapter Features Figure 1-2 Two-Port PA-2T3 Serial Port Adapter TR XM H10062 LL AIS OO F LL AIS OO F RC VR LK FE RF RL RC LK FE RF RL RC TR XM RC VR EN AB LE D DS3 SERIAL The PA-T3 serial port adapter can be installed in the following slots on the hardware platforms described in this document: • • • VIP2—Port adapter slot 0 and port adapter slot 1 • Cisco 7200 series routers—Port adapter slot 1 and slot 2 of the Cisco 7202; port adapter slot 1 through slot 4 of the C
Management Information Base • • • • • • • • Single-width port adapter for the Catalyst RSM/VIP2 in all Catalyst 5000 series switches • • • • • Support for DS3 MIB (RFC 1407) 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 I
Management Information Base 1-4 PA-T3 Serial Port Adapter Installation and Configuration
C H A P TER 2 Preparing for Installation This chapter describes the general equipment, safety, and site preparation requirements for installing the PA-T3 port adapters.
Software and Hardware Requirements Software and Hardware Requirements Table 2-1 lists the minimum Cisco IOS software release required to use the PA-T3 and the PA-2T3 serial port adapters in supported router platforms. Table 2-1 PA-T3 Port Adapter Software Requirements Platforms Recommended Minimum Cisco IOS Release Cisco 7000 and Cisco 7500 series PA-T3 PA-2T3 • With VIP2-15(=) or VIP2-40(=) Cisco IOS Release 11.1(13)CA or a later release of Cisco IOS Release 11.1 CA Cisco IOS Release 11.
PA-T3 Port Adapter LEDs Note The VIP2 and Catalyst RSM/VIP2 supports online insertion and removal (OIR), but individual port adapters do not. To replace port adapters in the Cisco 7000 series and Cisco 7500 series routers, and the Catalyst 5000 series switches, you must first remove the VIP2 or Catalyst RSM/VIP2 from the chassis and then replace port adapters as required. OIR is supported for port adapters in the Cisco 7100 series, Cisco 7200 series, and Cisco uBR7200 series routers.
PA-T3 Port Adapter LEDs LEDs on the PA-T3 Serial Port Adapter—Partial Front View H10040 RL LK FE RF DS3 SERIAL LL RC F AI S OO VR XM TR EN RC AB LE D Figure 2-1 LEDs The PA-2T3 has one status LED and six uplink port status LEDs (RCLK, FERF, OOF, AIS, RL, and LL) for each serial PA-T3 port. (See Figure 2-2.
PA-T3 Receptacles and Cables LED Color State Description ENABLED Green On Indicates that port adapter is ready for operation. Yellow On Indicates that port is in local loopback mode. Uplink Port Status LL PA-T3 Receptacles and Cables 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.
Safety Guidelines Safety Guidelines Following are safety guidelines that you should follow when working with any equipment that connects to electrical power or telephone wiring. Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents.
Electrical Equipment Guidelines Aviso Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes.
FCC Class A Compliance Preventing Electrostatic Discharge Damage Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are improperly handled, results in complete or intermittent failures. Port adapters and processor modules consist of printed circuit boards that are fixed in metal carriers. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier.
FCC Class A Compliance • Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.) Note The PA-T3 serial port adapter has been designed to meet these requirements. Modifications to this product that are not authorized by Cisco Systems, Inc., could void the various approvals and negate your authority to operate the product.
FCC Class A Compliance 2-10 PA-T3 Serial Port Adapter Installation and Configuration
C H A P TER 3 VIP2 and the PA-T3 Port Adapter This chapter provides information on the PA-T3 port adapter and its use on the VIP2 in Cisco 7000 series and Cisco 7500 series routers.
Overview Figure 3-1 VIP2-15 or VIP2-40 with One-Port PA-T3 Serial Port Adapters in Port Adapter Slots 0 and 1 CPU Bus connector Boot ROM U6 SRAM DIMM U5 U4 DRAM SIMMs U2 PA-T3 in port adapter slot 0 PA-T3 in port adapter slot 1 LK VR C R C R TR F R FE L DS3 SERIAL D F O O LL VR AB EN AIS LK LE R XM C R C R TR DS3 SERIAL F R FE L 24335 D LE AB EN R XM AIS F O O LL Port adapter handles not shown LK C R F S AI O O F R FE L R LL Note Port
Overview Figure 3-2 shows two one-port PA-T3 port adapters installed in port adapter slots 0 and 1 on a VIP2-50.
Removing a Port Adapter When only one port adapter is installed on a VIP2, a blank port adapter must fill the empty slot. This allows the VIP2 and router chassis to conform to electromagnetic interference (EMI) emissions requirements, and encourages air to flow through the chassis properly. If you plan to install a new port adapter, you must first remove the blank port adapter.
Installing a Port Adapter Pulling a Port Adapter Out of a Slot—Partial Port Adapter View H3149 Figure 3-4 Step 7 If you removed a port adapter, place it in an antistatic container for safe storage or shipment back to the factory. If you removed a blank port adapter, no special handling is required; however, store the blank port adapter for potential future use. This completes the procedure for removing a new port adapter on a VIP2.
Installing a Port Adapter 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 connector at the rear of the port adapter slot, make certain that the leading edges of the carrier are between the upper and the lower slot edges, as shown in the cutaway in Figure 3-5.
Installing a Port Adapter This completes the procedure for installing a port adapter on a VIP2. Proceed to Chapter 8, “Configuring the PA-T3 Interfaces,” for information on how to configure your port adapter interfaces.
Installing a Port Adapter 3-8 PA-T3 Serial Port Adapter Installation and Configuration
C H A P TER 4 Catalyst RSM/VIP2 and the PA-T3 Port Adapter This chapter provides information on the PA-T3 serial port adapter and its use on the Catalyst RSM/VIP2 in the Catalyst 5000 series switches.
Overview Figure 4-1 Catalyst RSM/VIP2-15 or Catalyst RSM/VIP2-40 with One-Port PA-T3 Serial Port Adapters in Port Adapter Slots 0 and 1 Backplane bus connector Standoff mounting hole Ribbon cables Standoff mounting holes Standoff mounting holes PA-T3 in port adapter slot 0 PA-T3 in port adapter slot 1 LK VR C R C R TR F R FE L DS3 SERIAL D AIS F O O LL LK LE R VR AB EN XM C R C R TR XM AIS F O O LL F R FE L DS3 SERIAL R 25704 D LE AB EN Port adapter h
Removing a Port Adapter When only one port adapter is installed on a Catalyst RSM/VIP2, you must use a blank port adapter to fill the empty slot. This allows the Catalyst RSM/VIP2 and the Catalyst RSM/VIP2 chassis to conform to electromagnetic interference (EMI) emissions requirements and encourages air to flow through the chassis properly. If you plan to install a new port adapter, you must first remove the blank port adapter.
Installing a Port Adapter Pulling a Port Adapter Out of a Slot—Partial Port Adapter View H3149 Figure 4-3 Step 7 If you removed a port adapter, place it in an antistatic container for safe storage or shipment back to the factory. If you removed a blank port adapter, no special handling is required; however, store the blank port adapter for potential future use. This completes the procedure for removing a new port adapter on a Catalyst RSM/VIP2.
Installing a Port Adapter Aligning a Port Adapter in a Port Adapter Slot H3150 Figure 4-4 Carrier Upper edge Lower edge 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 connector at the rear of the port adapter slot, make certain that the leading edges of the carrier are between the upper and the lower slot edges, as shown in the cutaway in Figure 4-4.
Installing a Port Adapter Installing a Port Adapter in a Port Adapter Slot—Partial Port Adapter View H3152 Figure 4-5 Step 4 Replace the screw in the rear of the port adapter slot. (See Figure 4-2 for its location.) Do not overtighten this screw. Step 5 To reinstall the Catalyst RSM/VIP2 in the system, follow the steps in the Route Switch Module Catalyst VIP2-15 and VIP2-40 Installation and Configuration Note (Document Number 78-4780-01) which shipped with your Catalyst RSM/VIP2 .
C H A P TER 5 Cisco 7200 Series and the PA-T3 Port Adapter This chapter provides information on the PA-T3 port adapter and its use in Cisco 7200 series routers.
Removing a Port Adapter Note The Cisco 7200 series routers support online insertion and removal; therefore, you do not have to power down the Cisco 7200 series routers when removing and replacing a port adapter. When a port adapter slot is not in use, a blank port adapter must fill the empty slot to allow the router to conform to EMI emissions requirements and to allow proper airflow across the port adapters.
Installing a Port Adapter Caution Always handle the port adapter by the carrier edges and handle; never touch the port adapter’s components or connector pins. (See Figure 5-3.) Figure 5-3 Handling a Port Adapter Metal carrier H6420 Printed circuit board Step 6 Place the port adapter on an antistatic surface with its components facing upward, or in a static shielding bag. If the port adapter will be returned to the factory, immediately place it in a static shielding bag.
Installing a Port Adapter Step 5 With the metal carrier aligned in the slot guides, gently slide the port adapter halfway into the slot. Caution Do not slide the 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. Step 6 With the port adapter halfway in the slot, connect all required cables to the port adapter.
C H A P TER 6 Cisco uBR7200 Series and the PA-T3 Port Adapter This chapter provides information on the PA-T3 port adapter and its use in the Cisco uBR7200 series universal broadband routers. This chapter includes the following sections: • • • Overview, page 6-1 Removing a Port Adapter, page 6-2 Installing a Port Adapter, page 6-4 Overview The PA-T3 port adapter can be installed in any of the available port adapter slots in the Cisco uBR7200 series routers.
Removing a Port Adapter Note Cisco uBR7200 series routers support OIR; therefore, you do not have to power down the router when removing and replacing a PA-T3 port adapter. When a port adapter slot is not in use, blank port adapters must fill empty slots to allow the router to conform to 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.
Removing a Port Adapter Figure 6-3 Placing the Port Adapter Lever in the Unlocked Position—Cisco uBR7223 Port adapter lever in unlocked position 16217 Port adapters Grasp the handle on the port adapter and pull the port adapter from the router midplane, about halfway out of its slot. If you are removing a blank port adapter, pull the blank port adapter completely out of the chassis slot.
Installing a Port Adapter Installing a Port Adapter Following is the procedure for installing a new port adapter in a Cisco uBR7200 series router: Step 1 Attach an ESD-preventive wrist strap between you and an unfinished chassis surface. Step 2 Use both hands to grasp the port adapter by its metal carrier edges and position the port adapter so that its components are downward. (See Figure 6-4.
Installing a Port Adapter Figure 6-6 Placing the Port Adapter Retention Clip in the Locked Position—Cisco uBR7246 Shown H11517 Port adapters • Figure 6-7 Port adapter retention clip in locked position For a Cisco uBR7223, place the port adapter lever in the locked position. (See Figure 6-7.
Installing a Port Adapter 6-6 PA-T3 Serial Port Adapter Installation and Configuration
C H A P TER 8 Configuring the PA-T3 Interfaces To continue your PA-T3 port adapter installation, you must configure the PA-T3 interfaces. The instructions that follow apply to all supported platforms. Minor differences between the platforms are noted.
Using the EXEC Command Interpreter Using the EXEC Command Interpreter You modify the configuration of your router through the software command interpreter called the EXEC (also called enable mode). You must enter the privileged level of the EXEC command interpreter with the enable command before you can use the configure command to configure a new interface or change the existing configuration of an interface. The system prompts you for a password if one is set.
Cisco 7200 Series and Cisco uBR7200 Series Ports Note The I/O controller is available with or without a Fast Ethernet port. You can install both I/O controller types in all Cisco 7200 series routers; however, when you install an I/O controller with a Fast Ethernet port in a Cisco 7202, the system software automatically disables the port. For example, the serial port on a one-port PA-T3 serial port adapter in port adapter slot 3 has the address 3/0. (See Figure 8-1.
Identifying Port Adapter Slot and T3 Interface Port Numbers C LK FE R R F L R TR VR C 15262 AIS O O F LL R DS3 SERIAL XM AB LE D PA-T3 port adapter (port number 1/0) PA-T3 Interface Port Address Example—Cisco uBR7246 EN Figure 8-2 You can identify interface ports by physically checking the port adapter slot number/interface port location on the back of the router or by using software commands to display information about a specific interface or all interfaces in the router.
Catalyst RSM/VIP2 Ports For example, the serial port on a one-port PA-T3 serial port adapter in the first port adapter slot in chassis slot 3, is numbered 3/0/0. (See Figure 8-3.) If the PA-T3 serial port adapter is in port adapter slot 1, this same port is numbered 3/1/0. The serial ports on a two-port PA-T3 serial port adapter in the first port adapter slot in chassis slot 3 are numbered 3/0/0 and 3/0/1. Port adapters can occupy either port adapter slot; there are no restrictions.
Identifying Port Adapter Slot and T3 Interface Port Numbers Figure 8-4 PA-T3 Serial Port Adapter in the Catalyst 5509 You can identify interface ports by physically checking the port-adapter/interface port location by using show commands to display information about a specific interface or all interfaces in the router. Cisco 7100 Series Ports In the Cisco 7100 series routers, the slot number is the location in the chassis where the interface resides and the port number is the physical port.
Shutting Down an Interface Slots in the Cisco 7140 series routers are numbered as shown in Figure 8-6. The fixed LAN interface is slot 0, the fixed WAN interfaces are slots 1 and 2, and the modular port adapter interface is slot 4. Slot 3 is not used. Slot 5 is the service adapter.
Shutting Down an Interface Table 8-1 Interface Subcommand Syntax (continued) Platform Command Example Cisco 7120 interface, followed by the type (serial) and port adapter number/interface port number Router(config)# interface serial 3/0 Cisco 7140 interface, followed by the type (serial) and port adapter number/interface port number Router(config)# interface serial 4/0 Step 4 Enter the shutdown command as follows: Router(config-if)# shutdown Step 5 To shut down additional interfaces, enter th
Shutting Down an Interface The example that follows is for Cisco 7100 series, Cisco 7200 series, or Cisco uBR7200 series routers: Router# show interfaces serial 1/0 Serial 1/0 is administratively down, line protocol is down Hardware is M1T-T3 pa [display text omitted] To verify that new interfaces are now in the correct state (shutdown) on a VIP2, use the show interfaces serial slot/port adapter/interface command to display the specific interface, or use the show interfaces command, without variables, to
Performing a Basic Configuration The example that follows is for a VIP2: Router(config)# interface serial 1/1/0 Router(config-if)# no shutdown Ctrl-Z Router# Router# copy running-config startup-config [OK] Router# show interfaces serial 1/1/0 Serial 1/1/0 is up, line protocol is up Hardware is M1T-T3 pa [display text omitted] The example that follows is for a Catalyst RSM/VIP2: Router(config)# interface serial 1/0 Router(config-if)# no shutdown Ctrl-Z Router# Router# copy running-config startup-config [OK
Configuration Example • For a VIP2, specify the interface to configure by entering the subcommand interface serial, followed by the slot/port-adapter/port (interface processor slot number, port adapter slot number, and interface port number).
Customizing the PA-T3 Serial Port Adapter Customizing the PA-T3 Serial Port Adapter You can customize the PA-T3 serial port adapter. The features you can customize have default values that probably suit your environment and do not require change. However, you might need to enter configuration commands, depending on the requirements for your system configuration and the protocols you plan to route on the interface.
Specifying T3 Framing Note The local port configuration must match the remote port configuration. For example, if you enable scrambling on the local port, you must do the same on the remote port. See the “Interoperability Guidelines for PA-T3 Serial Port Adapter DSUs” section on page 2-5 for information regarding DSU feature compatibilities.
Checking the Configuration For a Cisco 7100 series, Cisco 7200 series, or Cisco uBR7200 series router, use the following example: router# configure terminal Enter configuration commands, one per line. router(config)# router(config)# interface serial 3/0 router(config-int)# crc 32 Ctrl-z End with CNTL/Z. For a VIP2, use the following example: router# configure terminal Enter configuration commands, one per line.
Using show Commands to Display Interface and System Information Step 3 Step 4 Specify one of the new interfaces: • For Cisco 7100 series, Cisco 7200 series, and Cisco uBR7200 series routers, specify one of the new interfaces with the show interfaces type port adapter slot/interface command, and verify that the first line of the display specifies the interface with the correct slot number. Also verify that the interface and line protocol are in the correct state: up or down.
Checking the Configuration The following example of the show interfaces type slot/port command shows all of the information specific to the serial PA-T3 port (interface port 0) in port adapter slot 2: router# show interfaces serial 2/0 Serial2/0 is up, line protocol is up Hardware is M1T-T3 pa MTU 4470 bytes, BW 44210 Kbit, DLY 200 usec, rely 255/255, load 1/255 Encapsulation HDLC, loopback not set, keepalive not set Last input 00:00:01, output 00:00:03, output hang never Last clearing of "show interface"
Using show Commands to Display Interface and System Information For a Catalyst RSM/VIP2, the show interfaces port-adapter/port command displays status information for the interfaces you specify. In this example, a one-port PA-T3 serial port adapter-configured Catalyst RSM/VIP2 is in port adapter slot 0.
Checking the Configuration line state: down PA-T3 DTE cable, received clockrate 1582 base0 registers=0x3F000000, base1 registers=0x3F002000 mxt_ds=0x60CD2308, rx ring entries=128, tx ring entries=256 rxring=0x4B0AB940, rxr shadow=0x60CB06E4, rx_head=95 txring=0x4B0ABE20, txr shadow=0x60CB12C0, tx_head=0, tx_tail=0, tx_count=0 throttled=0, enabled=0, disabled=0, halted=0 rx_no_eop_err=3231, rx_no_stp_err=0, rx_no_eop_stp_err=0 rx_no_buf=0, rx_soft_overrun_err=0, dump_err= 3465869 tx_underrun_err=1, tx_soft_
Using show Commands to Display Interface and System Information 0 P-bit Err Secs, 0 P-bit Severely Err Secs 0 Severely Err Framing Secs, 0 Unavailable Secs 0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Severely Errored Secs Total Data (last 24 hours) 0 Line Code Violations, 0 P-bit Coding Violation, 0 C-bit Coding Violation, 0 P-bit Err Secs, 0 P-bit Severely Err Secs, 0 Severely Err Framing Secs, 0 Unavailable Secs, 0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Severely Errored Secs No alarms de
Checking the Configuration byron uptime is 22 minutes System restarted by reload System image file is "c7200-p-mz", booted via tftp from 10.0.0.0 cisco 7206 (NPE150) processor with 12288K/4096K bytes of memory. R4700 processor, Implementation 33, Revision 1.0 (512KB Level 2 Cache) Last reset from power-on X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. 4 Ethernet/IEEE 802.3 interfaces. 1 Serial network interface. 1 FDDI network interface. 125K bytes of non-volatile configuration memory.
Using show Commands to Display Interface and System Information To determine which type of port adapter is installed in your system, use the show diag slot command. Specific port adapter information is displayed, as shown in the following example of a one-port PA-T3 serial port adapter in chassis slot 3 on a Cisco 7200 series router: router# show diag 3 Slot 3: PA-T3 PA port adapter, 1 port Port adapter is analyzed Port adapter insertion time 3d19h ago Hardware revision 0.
Checking the Configuration The following example shows a one-port PA-T3 serial port adapter on a Catalyst RSM/VIP2: router# show diag 0 Slot 0: Physical slot 0, ~physical slot 0x5, logical slot 0, CBus 0 Microcode Status 0x4 Master Enable, LED, WCS Loaded Board is analyzed Pending I/O Status: None EEPROM format version 1 VIP2 controller, HW rev 2.
Using show Commands to Display Interface and System Information Ethernet0/0/1, addr 00e0.f7d7.cb01 (bia 00e0.f7d7.cb01) gfreeq 48000148, lfreeq 48000180 (1536 bytes), throttled 0 rxlo 4, rxhi 273, rxcurr 0, maxrxcurr 0 txq 48001A08, txacc 48001A0A (value 0), txlimit 152 Ethernet0/0/2, addr 00e0.f7d7.cb02 (bia 00e0.f7d7.cb02) gfreeq 48000148, lfreeq 48000188 (1536 bytes), throttled 0 rxlo 4, rxhi 273, rxcurr 0, maxrxcurr 0 txq 48001A10, txacc 48001A12 (value 0), txlimit 152 Ethernet0/0/3, addr 00e0.f7d7.
Checking the Configuration For complete command descriptions and examples for the Cisco 7100 series routers, Cisco 7200 series routers, Cisco uBR7200 series routers, VIP2 and Catalyst RSM/VIP2, refer to the publications listed in the “Related Documentation” section on page vi.
Using the loopback Command to Verify the Physical Interface • Set the interface into local loopback mode as follows: Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. router(config)# interface serial 6/0 router(config-if)# loopback local Local loopback loops the router output data back toward the router at the framer. • Set the interface into network line loopback mode as follows: Router# configure terminal Enter configuration commands, one per line.
Checking the Configuration 8-26 PA-T3 Serial Port Adapter Installation and Configuration
C H A P TER 7 Cisco 7100 Series and the PA-T3 Port Adapter This chapter provides information on the PA-T3 port adapter and its use in the Cisco 7100 series routers. This chapter contains the following sections: • • • Overview, page 7-1 Removing a Port Adapter, page 7-2 Installing a Port Adapter, page 7-3 Overview The PA-T3 serial port adapter can be installed in port adapter slot 3 in Cisco 7120 series routers and in port adapter slot 4 in Cisco 7140 series routers.
Removing a Port Adapter Figure 7-2 Cisco 7140 Series Router—Port Adapter Slot 4 Location Locked Unlocked ESD plug Slot 4 AC OK DC OK OTF SLOT 0 SLOT 1 PWR ACT ACT 0 FE 0 / 0 I EN RX RX 155 - MM TX EN CEL CAR ALM FE 0 / 1 RX LNK LNK 0 1 RX 155 - MM CONS AUX AC OK SYS RDY DC OK OTF TX CEL CAR ALM 2 7140 - 2MM3 22134 5 Depending on your circumstances, you might need to install a new port adapter in a Cisco 7100 series router or replace a failed port adapter in the field.
Installing a Port Adapter Figure 7-3 Handling a Port Adapter Metal carrier H6420 Printed circuit board Step 6 Place the port adapter on an antistatic surface with its components facing upward, or in a static shielding bag. If the port adapter will be returned to the factory, immediately place it in a static shielding bag. Step 7 Install a blank port adapter or replacement port adapter to maintain proper flow of cooling air across the internal components.
Installing a Port Adapter Figure 7-4 Aligning the Single-Width Port Adapter Between the Slot Guides Guides I RCVR EN XMTR RCLK FERF RL FE 0 / 22132 5 AIS OOF LL Step 7 With the port adapter halfway in the slot, connect all required cables to the port adapter. Step 8 After connecting all required cables, carefully slide the port adapter all the way into the slot until the port adapter is seated in the router.
