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PA-4R Half-Duplex Token Ring Port Adapter
Installation and Configuration
Product Numbers: PA-4R and PA-4R=
This configuration note describes the installation and configuration of the half-duplex PA-4R(=) Token
Ring port adapter, which can be used in the following supported platforms:
• Cisco 7200 series routers,, which consists of the 2-slot Cisco 7202, 4-slot Cisco 7204, and the 6-slot
Cisco 7206
� Second-generation Versatile Interface Processor (VIP2) in all Cisco 7500 series routers and
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Port Adapter Installation Prerequisites Port Adapter Installation Prerequisites This section provides software requirements, a list of parts and tools you will need to perform the port adapter installation, and safety and ESD-prevention guidelines to help you avoid injury and damage to the equipment during installation. Also included is information on the systems in which port adapters can be installed and overview information on interface specifications. The following sections discuss gen
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Port Adapter Installation Prerequisites Checking Hardware and Software Compatibility To check the minimum software requirements of Cisco IOS software with the hardware installed on your router, Cisco maintains the Software Advisor tool on Cisco.com. This tool does not verify whether modules within a system are compatible, but it does provide the minimum IOS requirements for individual hardware modules or components. Note Access to this tool is limited to users with Cisco.com login accounts.
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Port Adapter Installation Prerequisites Safety Warnings 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. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. Waarschuwing Dit
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Port Adapter Installation Prerequisites 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. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety Information (Informação de Seguran
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Port Adapter Installation Prerequisites 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. Although the metal carrier helps to protect the
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Port Adapter Installation Prerequisites access unit (MAU). Also, IBM Token Ring specifies twisted-pair cabling, whereas IEEE 802.5 does not specify media type. Most Token Ring networks use shielded twisted-pair cabling; however, some networks that operate at 4 Mbps use unshielded twisted-pair cable. Table 1 shows a comparison of the two types. Table 1 IBM Token Ring and IEEE 802.5 Comparison Network Type Data Rates Stations/ Segment Topology Media Signaling Access Method Encoding IBM Token
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Port Adapter Installation Prerequisites Figure 1 Token Ring Network Physical Connections MAU or MSAU MAU or MSAU Ring Ring Ring Ring in 12345678 out in 12345678 out Stations Stations Patch MAU or MSAU MAU or MSAU cables Ring Ring Ring Ring in 12345678 out in 12345678 out Lobe cables Stations Stations Token Ring Connection Equipment You will need an 802.5 MAU or an MSAU to provide the interface between the 4R port adapter Token Ring interfaces and the external ring, and a Token Ring lobe cable
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What Is the 4R Port Adapter? Token Ring Speed Considerations Before you install the 4R port adapter, determine the ring speed (4 or 16 Mbps) of each ring to be connected to the server. There is no factory default for the interface speed; you must set the speed of each interface (within the setup command facility or with the ring-speed command) before you bring the interface up and insert it into the ring with the no shutdown command. Caution Each Token Ring port must be configured for the
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What Is the 4R Port Adapter? Figure 3 Two Port Adapters on the VIP2-15 or VIP2-40 (Horizontal Orientation Shown) Bus connector CPU Boot ROM U6 DRAM U2 SRAM SIMMs U4 DIMM U5 Port adapter Port adapter in slot 1 in slot 0 Note In the Cisco 7000, Cisco 7507, and Cisco 7513 chassis, the VIP2 is installed vertically. In the Cisco 7010 and Cisco 7505 chassis, the VIP2 is installed horizontally. In the Cisco 7200 series routers, port adapter slots are numbered from the lower left to the upper right,
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5 3 1 What Is the 4R Port Adapter? Figure 4 Port Adapters in the Cisco 7206 Port adapter slot 6 Port adapter slot 4 Port adapter slot 2 Blank port adapter Port adapter slot 5 Port adapter slot 3 Port adapter slot 1 Port adapter slot 0 4R Port Adapter LEDs The 4R port adapter has several LEDs that indicate status of the port adapter and its interfaces. After system initialization, the enabled LED goes on to indicate that the 4R port adapter has been enabled for operation. (The LEDs are shown
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What Is the 4R Port Adapter? 4R Port Adapter Receptacles, Cables, and Pinouts A network interface cable provides the connection between the 9-pin Token Ring receptacles on the 4R port adapter and a media access unit (MAU). The 9-pin connector at the 4R port adapter end and the MAU connector at the network end are described in the section “Token Ring Connection Equipment” on page 8. 4R Port Adapter Cables The Token Ring ports on the 4R port adapter are DB-9 (PC type) receptacles that require
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VIP2 and the 4R Port Adapter 4R Port Adapter Receptacle Pinout Table 2 lists the pinout for the DB-9 receptacle used on the 4R port adapter. Table 2 Token Ring Signals Pin Signal 1 Ring-In B 5 Ring-Out A 6 Ring-In A 9 Ring-Out B 10 and 11 Ground VIP2 and the 4R Port Adapter This section describes the 4R port adapter and its use with the VIP2 and provides the following additional information specific to the 4R port adapter and its use on the VIP2 in Cisco 7000 series and Cisco 7500 series
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VIP2 and the 4R Port Adapter Figure 8 VIP2-15 or VIP2-40 with a 4R Port Adapter in Port Adapter Slot 0 Boot ROM CPU Bus connector U6 DRAM U2 SRAM SIMMs U4 DIMM U5 4T in port 4R in port adapter slot 1 adapter slot 0 FAST SERIAL Port adapter handles not shown Port adapters have a handle attached, but this handle is not shown to allow a full view of detail on each port adapter’s faceplate. Installing or Replacing a Port Adapter on a VIP2 Depending on the circumstances, you might need to install
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VIP2 and the 4R Port Adapter Caution To prevent interface reconfiguration requirements, you should replace a port adapter with the same type of port adapter you removed, but this is not a requirement. When only one port adapter is installed on a VIP2, a blank port adapter must fill the empty slot to allow the VIP2 and router chassis to conform to electromagnetic interference (EMI) emissions requirements, and so that air flows through the chassis properly. If you plan to install a new port a
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VIP2 and the 4R Port Adapter Figure 10 Pulling a Port Adapter Out of a Slot (Partial Port Adapter View) 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. Step 8 Remove the new port adapter from its antistatic container and position it at the opening of the slot. (See Figure 11.) Step 9
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VIP2 and the 4R Port Adapter Caution To ensure a positive ground attachment between the port adapter carrier and the VIP2 motherboard and port adapter slot, and to ensure that the connectors at the rear of the port adapter and slot seat properly, position the carrier between the upper and lower slot edges, as shown in Figure 12. Step 10 Carefully slide the new port adapter into the port adapter slot (Figure 12) until the connector on the port adapter is completely seated in the connector on
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VIP2 and the 4R Port Adapter Attaching 4R Port Adapter Interface Cables The Token Ring ports on the 4R port adapter run at either 4- or 16 Mbps. You need one Token Ring interface cable for each 4R port adapter interface you want to use. Token Ring interface cables are not available from Cisco Systems, but are commercially available through outside cable vendors. Port adapters have a handle attached (see ), but this handle is not shown in to allow a full view of detail on the 4R port adapt
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VIP2 and the 4R Port Adapter Configuring the 4R Interfaces The following procedures describe basic configuration information for the 4R port adapter. If you installed a new 4R port adapter or if you want to change the configuration of an existing interface, you must enter configuration mode using the configure command. If you replaced a 4R port adapter that was previously configured, the system will recognize the new 4R interfaces and bring them up in their existing configuration. After y
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VIP2 and the 4R Port Adapter For example, the addresses for the 4R interface ports on the first port adapter on a VIP2 (see ) are 3/0/0 through 3/0/3 (chassis slot 3, port adapter slot 0, and interface ports 0 through 3). If the 4R port adapter were installed in port adapter slot 1, the interface addresses would be 3/1/0 through 3/1/3. Note If you remove the 4R-equipped VIP2 (shown in ) from chassis slot 3 and install it in slot 2, the addresses of those same ports become 2/0/0 through 2/0/
