Overview. Port Adapter Overview CHAPTER

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1 CHAPTER This chapter describes the PA-4EG port adapter and contains the following sections: Port Adapter, page - Interface Specifications, page - LEDs, page -4 Cables, Connectors, and Pinouts, page -4 Port Adapter Slot Locations on the Supported Platforms, page -7 Identifying Interface Addresses, page -9 Port Adapter The PA-4EG, shown in Figure - and Figure -, provides up to four E synchronous serial interfaces, which are compatible with and specified by G.7/G.74. The PA-4EG network interfaces provide a connection between standard serial interfaces such as V. to telephone lines or Post, Telephone, and Telegraph (PTT) networks. Each PA-4EG interface operates in full-duplex mode at E (.48 Mbps) speed. The PA-4EG interfaces do not operate in the data terminal equipment (DTE) and data communications equipment (DCE) modes that are typical of data communications interfaces. The PA-4EG interfaces operate with either a line-recovered or an internal clock signal. The default is for a line clock signal that the interface recovers from the received data stream. The interface can also operate with an internal clock signal. The PA-4EG generates the internal clock signal; the interface does not use the motherboard or system clock. Figure - PA-4EG 7-Ohm, Unbalanced (Front Panel View) LA RA LA RA LA RA E G.7/G.74-7 OHM LA RA H96 OL-6- -

2 Interface Specifications Chapter Figure - PA-4EG -Ohm, Balanced (Front Panel View) LA RA LA RA LA RA E G.7/G.74- OHM LA RA H967 Features The PA-4EG provides the following features and capabilities: Provides framed and unframed service access, E (.48 Mbps) line speeds over unbalanced 7-ohm or balanced -ohm cable, with -pin, D-shell (DB-) receptacles on the port adapter Operates over E leased-line services, and provides ITU-T G.7 with high-density bipolar of order (HDB) line encoding Operates with either an external or internal clock signal, and runs at wire speed Provides for local and remote loopback testing services Allows you to fractionalize a data stream into a single channel from 64 kilobits per second (kbps) to 984 kbps Provides G.74 framing for n x 64-kbps service support (where n = to ) Support for 4-bit cyclic redundancy check (CRC4) to provide and ensure data integrity Support for point-to-point connections to supported platforms Eliminates the need for a separate, external data termination unit that is typically used to convert standard serial interfaces, such as V., to E-G.7/G.74 Note PA-4EGs are available as spare parts PA-4EG-(=) and PA-4EG-7(=). Interface Specifications Each PA-4EG interface is available in either balanced (-ohm) or unbalanced (7-ohm) mode; a unique port adapter supports each type. Neither the balanced and unbalanced modes nor the balanced and unbalanced cables are interchangeable; you cannot configure a balanced port to support an unbalanced line, nor can you attach an interface cable intended for a balanced line to an unbalanced port. Balanced interfaces typically use three conductors and three signal states: high, low, and ground. The high and low signals mirror each other. Unbalanced interfaces use only two signals: signal and ground. You can discover the mode of each interface by examining the agency approval label on each port adapter, or by using the show controller cbus command. Following is an example of discovering whether the PA-4EG is in balanced or unbalanced mode: Router# show controllers cbus Serial//, applique is G.7 Unbalanced [remainder of displayed text omitted from example] Serial//, applique is G.7 Unbalanced [remainder of displayed text omitted from example] The PA-4EG interface is divided into time slots or frames. (See Figure -.) - OL-6-

3 Chapter Interface Specifications Figure - Time Slot Diagram,48 Mbps 64 kbps time slots = 6 bits 8 bits Time slot 8 9 H4 Each of the time slots is an 8-bit frame that transmits data at 64 kbps. Each of these time slots can be configured to carry data or to remain empty. (The PA-4EG inserts an idle pattern into empty time slots.) Time slot, or the first 8 bits, is reserved as overhead. The remaining 48 bits ( frames with 8 bits each) are designated time slots through. Time slot 6 is also designated as a framing slot when using framed mode. When you use framed mode (G.74), you can configure time slot 6 to carry data and operate as any of the other slots; therefore, in framed mode time slot must be designated as a framing signal; time slot 6 can be configured for either data or framing. With framed mode (G.74) you can specify a bandwidth for the interface by designating of the time slots for data and reserving time slot for framing (timing). When you use framed mode, you must designate start and stop time slots; the slots within the start and stop boundaries are used for data, and the remaining slots are left idle. For example, on an interface with framing set on time slots through 8, the interface carries data within the specified 8 frames, and frames 9 through remain idle. Because each time slot transmits at 64 kbps, the interface operates at kbps (8 frames x 64 kbps = kbps). By configuring 6 of the time slots to carry data and the other 6 to remain empty, you can essentially configure the interface for.4 Mbps (by leaving half the time slots empty and unable to carry data). The system inserts an idle pattern into unused time slots to identify them as overhead (unused for data). Only one contiguous time slot range can be used. In Private Automatic Branch Exchange (PABX) systems, time slot 6 is always left unused. By default, time slot 6 is not enabled for data in the PA-4EG interface. The command ts6 overrides the default and enables time slot 6 to carry data. Unframed mode (G.7) uses all time slots for data. None of the time slots are used for framing signals. This allows each of the time slots to transmit at 64 kbps; therefore, time slots x 64 kbps =.48 Mbps. While unframed mode is the default, you can also specify unframed mode with the command timeslot -, which specifies time slot as the start slot with no stop (ending) time slot; therefore, all slots are used for data. The no timeslot command restores the default of unframed mode. Framed mode supports a 4-bit cyclic redundancy check (CRC4), which you enable with a software command. The default is for no CRC. Note The E-G.7/G.74 interface on PA-4EG is compliant with BABT. For more information about CRC4 with a PA-4EG on a VIP, Cisco 7 series router, Cisco 7 series router, or Cisco ubr7 series router, refer to Chapter 4, Configuring the PA-4EG. OL-6- -

4 LEDs Chapter LEDs The PA-4EG has one row of three status LEDs for each port and one LED. (See Figure -4.) The green- and amber-colored LED for each port indicates port status. Figure -4 PA-4EG LEDs Partial Front-Panel View LA RA H96 After system initialization, the LED goes on to indicate that the port adapter has been enabled for operation. The following conditions must be met before the PA-4EG is enabled: The PA-4EG is correctly connected and receiving power. A valid system software image for the port adapter has been downloaded successfully. The system recognizes the PA-4EG or a VIP with a PA-4EG. If any of the above conditions are not met, or if the initialization fails for other reasons, the enabled LED does not go on. Table - lists port LED colors and indications. Table - PA-4EG LEDs LED Label Color State Meaning Enabled () Green On Port adapter is enabled for operation. Loopback () Amber On Line or local loopback is active. Local alarm (LA) Amber On A loss of signal (LOS), a loss of frame (LOF), an alarm indication signal (AIS), or any combination of these is detected. Remote alarm (RA) Amber On A remote source indicates an error on its incoming signal. Cables, Connectors, and Pinouts This section describes the port adapter cables for data communications and the PA-4EG interfaces. Each PA-4EG provides up to four -pin, D-shell (DB-) receptacles, which support only E-G.7/G.74 interfaces. The PA-4EGs use a DB- receptacle for both the balanced and unbalanced ports. The label on the port adapter indicates if the ports on that port adapter are 7-ohm or -ohm. (See Figure - and Figure -.) -4 OL-6-

5 Chapter Cables, Connectors, and Pinouts The port adapter end of all E-G.7/G.74 adapter cables is a DB- connector. At the network end, the adapter cable for unbalanced (7-ohm) connections uses a BNC connector. The adapter cables for balanced (-ohm) connections use DB-, twinaxial, or RJ-4 connections to accommodate connection standards in different countries. Note You must connect the correct type of interface cable for the port to operate. Warning It is a requirement of the statutory approval of the E-G.7/G.74 interface that the jackscrews of the connector backshell are securely screwed down while the port adapter is operating. Cables for balanced and unbalanced mode are available with the following types of network-end connectors: Unbalanced (7-ohm) coaxial cables with BNC connectors at the network end, which are used primarily for connection in the United Kingdom. (See Figure -.) Figure - E-G.7/G.74 Interface Cable for Unbalanced Connections with BNC Connectors and Coaxial Cables Balanced (-ohm) cable with a DB- connector at the network end. (See Figure -6.) Figure -6 E-G.7/G.74 Interface Cable for Balanced Connections with DB- Connectors on Both Ends Balanced (-ohm) twinaxial split cable (with separate transmit and receive cables), each with a twinaxial connector. (See Figure -7.) Figure -7 E-G.7/G.74 Interface Cable for Balanced Connections with Twinaxial Connectors and Cables H44 H476 H4 OL-6- -

6 Cables, Connectors, and Pinouts Chapter Cable Product Numbers Table - lists the product numbers and descriptions of the E-G.7/G.74 cables. Table - Product Numbers and Descriptions of E-G.7/G.74 Port Adapter Cables Cable Product Numbers Description CAB-E-TWINAX(=) E cable, twinaxial, -ohm, balanced, m CAB-E-DB(=) E cable, DB-, -ohm, balanced, m CAB-E-BNC(=) E cable, BNC, 7-ohm, unbalanced, m. The appended equal sign (=) indicates a spare part. Cable Distance Limitations Unbalanced G.7 interfaces allow for a longer maximum cable length than those specified for balanced circuits. Table - lists the maximum cable lengths for each E-G.7/G.74 cable type by the connector used at the network (non-port adapter) end. Table - E-G.7/G.74 Maximum Cable Lengths Connection Type BNC Twinaxial Balanced m Unbalanced 6 m -6 OL-6-

7 Chapter Port Adapter Slot Locations on the Supported Platforms E-G.7/G.74 Port Adapter Cable Pinouts Table -4 shows the signal pinouts for each type of E-G.7/G.74 interface cable. All cables use a DB- connector at the port adapter end. Table -4 Port Adapter End E-G.7/G.74 Port Adapter Cable Connector Pinouts Network End DB- DB- DB- (Null Modem) Twinaxial RJ-4 BNC Pin Signal 4 Pin Pin Signal Pin Signal Signal 9 Tx tip Rx tip 4 Rx tip Tip Tx ring 9 Rx ring Rx ring Shield Tx shield 4 Rx shield 6 Rx shield 8 Rx tip Tx tip Tx tip Tip Rx ring 9 Tx ring Tx ring Shield 7 Rx shield 4 Tx shield Tx shield. Any pins not described in this table are not connected.. -ohm, balanced cable. 7-ohm, unbalanced cable 4. Tx = transmit, Rx = receive 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: Cisco 7 Series Routers VIP Slot Numbering, page -8 Cisco 7 Series Routers Slot Numbering, page - Cisco 7 Series Routers and Cisco 7 VXR Routers Slot Numbering, page - Cisco ubr7 Series Router Slot Numbering, page -4 Cisco 7 Router Slot Numbering, page -6 Cisco 7 Router Slot Numbering, page -6 Cisco 74 PCI Port Adapter Carrier Card Slot Numbering, page -7 Cisco 74ASR Router Slot Numbering, page -8 Cisco 7 Series Routers VIP Slot Numbering, page -8 OL-6- -7

8 Port Adapter Slot Locations on the Supported Platforms Chapter Cisco 7 Series Routers VIP Slot Numbering Port adapters are supported on the VIPs (versatile interface processors) used in Cisco 7 series routers. In the Cisco 7 router, the VIP motherboard is installed vertically in the VIP slot.in the Cisco 7 router, the VIP motherboard is installed horizontally in the VIP slot. A port adapter can be installed in either bay (port adapter slot or ) on the VIP. The bays are numbered from left to right on the VIP. Figure -8 shows the slot numbering of a VIP. Figure -8 VIP Slot Locations Port adapter slot Port adapter slot Port adapter handles not shown 98-8 OL-6-

9 DC FAIL DC FAIL Chapter Port Adapter Slot Locations on the Supported Platforms Cisco 7 routers have five slots for port adapters, and two slots for Route Switch Processors (RSPs). The slots are numbered from left to right. You can place a port adapter in any of the VIP interface slots (slot through 4). Figure -9 shows the slot numbering on a Cisco 7 router. Figure -9 VIP Slots in the Cisco 7 Router Captive installation screw AC POWER Upper power supply I O Captive installation screw AC POWER Lower power supply H8 I O Slot 4 SP or SSP slot RP slot OL-6- -9

10 Port Adapter Slot Locations on the Supported Platforms Chapter Cisco 7 routers have three slots for port adapters, and two slots for Route Switch Processors (RSPs). The slots are numbered from bottom to top. You can place a port adapter in any of the VIP interface slots (slot through ). Slots and 4 are always reserved for RSPs. Figure - shows the slot numbering on a Cisco 7 router. Figure - VIP Slots in the Cisco 7 Router RP slot SP or SSP slot Interface processor slot Interface processor slot Interface processor slot Power switch Chassis ground screw H9 DC OK LED Power receptacle AC-input power supply Cisco 7 Series Routers Slot Numbering Port adapters can be installed in port adapter slot in Cisco 7 series routers, and in port adapter slot 4 in Cisco 74 series routers. Figure - shows the slot numbering on a Cisco 7 series router. Figure - shows the slot numbering on a Cisco 74 series router. Figure - Port Adapter Slots in the Cisco 7 Series Router Slot Slot Slot 4 SLOT SLOT ACT ACT PWR I CEL CAR ALM E LNK LNK SYS FE / FE / CONS AUX RDY 7 - AE 8498 Slot Slot Slot - OL-6-

11 Chapter Port Adapter Slot Locations on the Supported Platforms Figure - Port Adapter Slots in the Cisco 74 Series Router Slot Slot Slot 4 AC O K DC O K OTF I CEL CAR ALM - MM SM-ISM RESET BOOT ERROR SLOT SLOT ACT ACT PWR LNK LNK SYS RDY FE / FE / CONS AUX - MM CEL CAR ALM 74 - MM AC O K DC O K OTF 8499 Slot Slot Slot Cisco 7 Series Routers and Cisco 7 VXR Routers Slot Numbering Cisco 7 routers have two port adapter slots. The slots are numbered from left to right. You can place a port adapter in either of the slots (slot or slot ). Figure - shows the slot numbering on a Cisco 7 router. Figure - Port Adapter Slots in the Cisco 7 Router (blank port adapter installed) Cisco 7 SERIES CELLS CARRIER ALARM -SMI CLASS PRODUCT LASERPRODUKT DER KLASSE PROUIT LASER DE CLASSE PRODUCTO LASER CLASS HANCED ATM SLOT FAST ETHERNET INPUT/OUTPUT CONTROLLER PCMCIA EJECT SLOT CPU RESET O POWER OK 6 OL-6- -

12 TD TC 4 Port Adapter Slot Locations on the Supported Platforms Chapter Cisco 74 routers and Cisco 74VXR routers have four slots for port adapters, and one slot for an input/output (I/O) controller. The slots are numbered from the lower left to the upper right, beginning with slot and continuing through slot 4. You can place a port adapter in any of the slots (slot through slot 4). Slot is always reserved for the I/O controller. Figure -4 shows the slot numbering on a Cisco 74 router. The Cisco 74VXR router is not shown. Figure -4 Port Adapter Slots in the Cisco 74 Router Port adapter slot 4 Port adapter slot Blank port adapter Cisco 7 SERIES RD RC CD TD TC RD RC CD LINK TD TC RD RC CD TD TC RD ETHERNET BT FAST SERIAL RC CD MII LINK RJ4 FAST ETHERNET ETHERNET-BFL 4 PCMCIA EJECT SLOT SLOT FE MII MII RJ4 RJ4 LINK RJ-4 O PWR OK CPU RESET FAST ETHERNET INPUT/OUTPUT CONTROLLER H799 Port adapter slot Port adapter slot Port adapter slot - OL-6-

13 ETHERNET-BFL 4 6 Chapter Port Adapter Slot Locations on the Supported Platforms Cisco 76 routers and Cisco 76VXR routers have six slots for port adapters, and one slot for an input/output (I/O) controller. The slots are numbered from the lower left to the upper right, beginning with slot and continuing through slot 6. You can place a port adapter in any of the six slots (slot through slot 6). Slot is always reserved for the I/O controller. Figure - shows the slot numbering on a Cisco 76 router. The Cisco 76VXR router is not shown. Figure - Port Adapter Slots in the Cisco 76 Router TOK RING LINK ETHERNET BT MII LINK RJ4 FAST ETHERNET 4 SERIAL-V Cisco 7 Series PCMCIA EJECT SLOT SLOT FE MII MII RJ-4 RJ-4 LINK O PWR OK RJ-4 FAST ETHERNET INPUT/OUTPUT CONTROLLER 89 Port adapter slot Port adapter slot Port adapter slot Port adapter slot 6 Port adapter slot 4 Port adapter slot Port adapter slot OL-6- -

14 Port Adapter Slot Locations on the Supported Platforms Chapter Cisco ubr7 Series Router Slot Numbering The Cisco ubr7 router has one port adapter slot (slot ). Slot is always reserved for the I/O controller if present. Figure -6 shows the slot numbering of port adapters on a Cisco ubr7 router. The Cisco ubr746 router and Cisco ubr746vxr router have two port adapter slots (slot and slot ). Slot is always reserved for the I/O controller if present. Figure -7 shows the slot numbering of port adapters on a Cisco ubr746 router. Figure -8 shows the slot numbering of port adapters on a Cisco ubr746vxr router. Figure -6 Port Adapter Slots in the Cisco ubr7 Router Port adapter slot (I/O controller) Port adapter slot 4 ubr - MCI6 DS Cable modem card slot ubr - MCI6 DS Cable modem card slot 74-4 OL-6-

15 LOS ACTIVE SEC ubr - CLK-T Chapter Port Adapter Slot Locations on the Supported Platforms Figure -7 Port Adapter Slots in the Cisco ubr746 Router Port adapter slot (I/O controller) Port adapter slot (blank) Port adapter slot 4 ubr - MCI6 DS ubr - MCI6 DS ubr - MCI6 DS ubr - MCI6 DS H Cable modem card slot Cable modem card slot 4 Cable modem card slot Cable modem card slot 6 Figure -8 Port Adapter Slots in the Cisco ubr746vxr Router Port adapter slot (I/O controller) Port adapter slot (blank) Port adapter slot ER FREERUN FAULT 4 ubr - MCI6 DS ubr - MCI6 DS ubr - MCI6 DS ubr - MCI6 DS Line card slot Line card slot 4 Line card slot Line card slot 6 OL-6- -

16 SLOT GIGABIT ETHERNET / RJ4 LINK CISCO 74SERIES GIGABIT ETHERNET / -4V, A, /6 Hz Port Adapter Slot Locations on the Supported Platforms Chapter Cisco 7 Router Slot Numbering Figure -9 shows the front view of a Cisco 7 router with a port adapter installed. There is only one port adapter slot (slot ) in a Cisco 7 router. Figure -9 Port Adapter Slot in the Cisco 7 Router Port adapter slot CELLS CARRIER ALARM ATM Cisco 7 PA SLOT RJ4 LINK/ACTV RJ4 SFP LINK/ACTV SFP SFP LINK/ACTV SFP LINK/ACTV CONSOLE GE / GE / GE / GE / AUX MNGMNT E ONLY FE / FE LINK COMPACT FLASH ALARM PWR OK STAT CF ACTV 8 Cisco 7 Router Slot Numbering Figure - shows the front view of a Cisco 7 router with a port adapter installed. There is only one port adapter slot (slot ) in a Cisco 7 router. Figure - Cisco 7 Router with a Port Adapter Installed Port adapter slot CELLS CARRIER ALARM ATM GBIC RJ4 LINK GIGABIT ETHERNET / GBIC RJ4 LINK GBIC AUX CONSOLE ALARM 4V=9A, 48-6V=A CISCO 74 COMPACT FLASH STAT OL-6-

17 7-CC-PA 7-OCATM-MM STAT -PORT OC ATM MM STAT -PORT OC48 POS w/ SMSR 9K-4C/POS-MM 4-PORT OC POS w/ MM ACTIVE/ LOOPBACK Chapter Port Adapter Slot Locations on the Supported Platforms Cisco 74 PCI Port Adapter Carrier Card Slot Numbering The Cisco 74 PCI Port Adapter Carrier Card installs in Cisco 74 router module slots through. Figure - shows a Cisco 74 PCI Port Adapter Carrier Card with a port adapter installed. The Cisco 74 PCI Port Adapter Carrier Card accepts one single-width port adapter. Figure - shows the module slot numbering on a Cisco 74 router. The port adapter slot number is the same as the module slot number. Slot and slot are reserved for the NPE module or NSE module. Figure - Cisco 74 PCI Port Adapter Carrier Card Port Adapter Installed OIR STAT 7 PA CARRIER CELLS CARRIER ALARM ATM 846 Figure - Module Slots on the Cisco 74 Router Slot 4 OIR Slot CARRIER/ ALARM 9K-C48 ACTIVE/ LOOPBACK CARRIER/ ALARM ACTIVE/ LOOPBACK OIR OIR STAT CARRIER/ ALARM Slot Slot 7 Slot Slot OL-6- -7

18 Port Adapter Slot Locations on the Supported Platforms Chapter Cisco 74ASR Router Slot Numbering Figure - shows the front view of a Cisco 74ASR router with a port adapter installed. There is only one port adapter slot (slot ) in a Cisco 74ASR router. Figure - Port Adapter Slot in the Cisco 74ASR Router CELLS CARRIER ALARM HANCED ATM 768 Cisco 7 Series Routers VIP Slot Numbering Port adapters are supported on the VIPs (versatile interface processors) used in Cisco 7 series routers. In the Cisco 7 router, the VIP motherboard is installed horizontally in the VIP slot. In the Cisco 77 router and Cisco 7 router, the VIP motherboard is installed vertically in the VIP slot. A port adapter can be installed in either bay (port adapter slot or ) on the VIP. The bays are numbered from left to right on the VIP. Figure -4 shows the slot numbering on a VIP. Figure -4 VIP Slot Locations Port adapter slot Port adapter slot Port adapter handles not shown 98-8 OL-6-

19 Chapter Identifying Interface Addresses Cisco 7 routers have four slots for port adapters, and one slot for an RSP. The slots are numbered from bottom to top. You can place a port adapter in any of the VIP interface slots (slot through ). One slot is always reserved for the RSP. Figure - shows the slot numbering on a Cisco 7 router. Figure - VIP Slots in the Cisco 7 Router VIP in interface processor slot NORMAL EJECT SLOT SLOT CPU HALT RESET ROUTE SWITCH PROCESSOR CONSOLE Slot Slot Slot Slot Interface processor slots 969 Cisco 77 routers have five slots for port adapters, and two slots for RSPs. The slots are numbered from left to right. You can place a port adapter in any of the VIP interface slots (slot,, 4,, or 6). Slots and are always reserved for RSPs. The Cisco 77 router is not shown. Cisco 7 routers have eleven slots for port adapters, and two slots for RSPs. The slots are numbered from left to right. You can place a port adapter in any of the VIP interface slots (slots through, or slots 9 through ). Slots 6 and 7 are always reserved for RSPs. The Cisco 7 router is not shown. Identifying Interface Addresses This section describes how to identify interface addresses for the PA-4EG in supported platforms. Interface addresses specify the actual physical location of each interface on a router or switch. Interfaces on a PA-4EG 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-4EG 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. OL-6- -9

20 Identifying Interface Addresses Chapter Table - The following subsections describe the interface address formats for the supported platforms: Cisco 7 Series Routers VIP Interface Addresses, page - Cisco 7 Series Routers Interface Addresses, page - Cisco 7 Series Routers and Cisco 7 VXR Routers Interface Addresses, page - Cisco ubr7 Series Routers Interface Addresses, page - Cisco 7 Router Interface Addresses, page - Cisco 7 Router Interface Addresses, page - Cisco 74 PCI Port Adapter Carrier Card Interface Addresses, page - Cisco 74ASR Router Interface Addresses, page - Cisco 7 Series Routers VIP Interface Addresses, page - Table - summarizes the interface address formats for the supported platforms. Identifying Interface Addresses Platform Interface Address Format Numbers Syntax VIP in Cisco 7 series Interface-processor-slot-number/port-adapter-slotnumber/interface-port-number Interface processor slot // routers through 4 (depends on the number of slots in the router) Port adapter slot or Interface port through Cisco 7 series router Port-adapter-slot-number/interface-port-number Port adapter slot always / Interface port through Cisco 74 series router Port-adapter-slot-number/interface-port-number Port adapter slot always 4 Interface port through 4/ Cisco 7 series routers and Cisco 7 VXR routers (Cisco 7, Cisco 74, Cisco 74VXR, Cisco 76, Cisco 76VXR) Port-adapter-slot-number/interface-port-number Port adapter slot through 6 (depends on the number of slots in the router) Interface port through Cisco 7 router Port-adapter-slot-number/interface-port-number Port adapter slot always Interface port through Cisco ubr7 router Port-adapter-slot-number/interface-port-number Port adapter slot always Cisco ubr746 and Cisco ubr746 VXR routers Interface port through Port-adapter-slot-number/interface-port-number Port adapter slot or Interface port through Cisco 7 routers Port-adapter-slot-number/interface-port-number Port adapter slot always Interface port through / / / / / - OL-6-

21 Chapter Identifying Interface Addresses Table - Identifying Interface Addresses (continued) Platform Interface Address Format Numbers Syntax Cisco 74 PCI Port Module-slot-number/interface-port-number Module slot through / Adapter Carrier Card in Cisco 74 routers Interface port through Cisco 74ASR routers Port-adapter-slot-number/interface-port-number Port adapter slot always / Interface port through VIP in Cisco 7 series or Cisco 7 series routers Interface-processor-slot-number/port-adapter-slotnumber/interface-port-number Interface processor slot through (depends on the number of slots in the router) Port adapter slot or Interface port through //. Port adapter slot is reserved for the Fast Ethernet port on the I/O controller (if present). Cisco 7 Series Routers VIP Interface Addresses In Cisco 7 series routers, port adapters are installed on a versatile interface processor (VIP), which installs in interface processor slots through 4 (depending on the number of slots in the router). The port adapter can be installed in either bay (port adapter slot or ) on the VIP. See Figure -8, Figure -9, and Figure - The interface address for the VIP is composed of a three-part number in the format interface-processor-slot-number/port-adapter-slot-number/interface-port-number. See Table -. The first number identifies the slot in which the VIP is installed (slot through 4, depending on the number of slots in the router). The second number identifies which bay on the VIP the port adapter is installed ( or ). The bays are numbered from left to right on the VIP. The third number identifies the physical port number (interface port number) on the port adapter. The port numbers always begin at and are numbered from left to right. The number of additional ports depends on the number of ports on the port adapter. The PA-4EG is a four-port port adapter, therefore the port can be through. For example, if the four-port PA-4EG is installed in a VIP in interface processor slot, port adapter slot, the interface addresses would be //, //. //, and // (interface processor slot, port adapter slot, and interfaces,,, and ). Note Although the processor slots in the 7-slot Cisco 7 are vertically oriented and those in the -slot Cisco 7 are horizontally oriented, all Cisco 7 series routers use the same method for processor slot and interface port numbering. OL-6- -

22 Identifying Interface Addresses Chapter Cisco 7 Series Routers Interface Addresses In Cisco 7 series router, port adapters are installed in port adapter slot. See Figure -. In the Cisco 74 series router, port adapters are installed in port adapter slot 4. See Figure -. The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table -. For example, if a four-port PA-4EG is installed on a Cisco 7 router, the interface addresses would be / through /. If a four-port PA-4EG is installed on a Cisco 74 router, the interface addresses would be 4/ through 4/. Cisco 7 Series Routers and Cisco 7 VXR Routers Interface Addresses In Cisco 7 series routers and Cisco 7 VXR routers, port adapter slots are numbered from the lower left to the upper right, beginning with slot and continuing through slot for the Cisco 7, slot 4 for the Cisco 74 and Cisco 74VXR, and slot 6 for the Cisco 76 and Cisco 76VXR. Port adapters can be installed in any available port adapter slot from through 6 (depending on the number of slots in the router). (Slot is reserved for the I/O controller.) See Figure -, Figure -4, and Figure - The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table -. For example, if a four-port PA-4EG is installed in slot of a Cisco 7 series router, the interface addresses would be / through /. Cisco ubr7 Series Routers Interface Addresses In the Cisco ubr7 router, only one slot accepts port adapters and it is numbered slot. See Figure -6 In the Cisco ubr746 router and Cisco ubr746vxr router, port adapters can be installed in two port adapter slots (slot and slot ). Slot is always reserved for the I/O controller if present. See Figure -7 and Figure -8. The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table -. For example, if a four-port PA-4EG is installed in slot of a Cisco ubr7 series router, the interface addresses would be / through /. If a four-port PA-4EG is installed in slot of a Cisco ubr746 or Cisco ubr746vxr router, the interface addresses would be / through /. Cisco 7 Router Interface Addresses In the Cisco 7 router, only one slot accepts port adapters and it is numbered as slot. See Figure -9. The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table -. For example, if a four-port PA-4EG is installed in a Cisco 7 router, the interface addresses would be / through /. - OL-6-