Ethernet, Fast Ethernet, and Token Ring Network Modules

Table Of Contents

Connecting Cisco Ethernet, Fast Ethernet, and Token Ring Network Modules to the Network

Ethernet Network Modules

1- and 4-Port Ethernet Modules

Ethernet 2-WAN Card Slot Modules

Ethernet Connectors

Connecting Ethernet Ports

AUI Connections

10BASE-T Connections

Ethernet LEDs

Fast Ethernet Network Modules

1-Port Fast Ethernet Modules

Fast Ethernet 2-WAN Card Slot Modules

Connecting Fast Ethernet Ports

100BASE-T Connections

100BASE-FX Connections

Fast Ethernet LEDs

Token Ring Network Modules

Connecting Token Ring Ports

Token Ring LEDs

Related Documents

Obtaining Documentation, Obtaining Support, and Security Guidelines

Connecting Cisco Ethernet, Fast Ethernet, and Token Ring Network Modules to the Network

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Revised: 08/07/2008, OL-12807-01

This guide describes how to connect Cisco Ethernet, Fast Ethernet, and Token Ring network modules to your network. It contains the following sections:

•Ethernet Network Modules

•Fast Ethernet Network Modules

•Token Ring Network Modules

•Related Documents

•Obtaining Documentation, Obtaining Support, and Security Guidelines

Ethernet Network Modules

Ethernet connections are provided on 1- and 4-port Ethernet modules, and on 1-port Ethernet, 2-port Ethernet, and 1-port Ethernet 1-port Token Ring 2-WAN card slot modules.

1- and 4-Port Ethernet Modules

The following network modules provide Ethernet interfaces:

•1-port Ethernet network module (NM-1E) (see Figure 1)

•4-port Ethernet network module (NM-4E) (see Figure 2)

Figure 1 1-Port Ethernet Network Module

Figure 2 4-Port Ethernet Network Module

Ethernet 2-WAN Card Slot Modules

The following 2-slot network modules provide one or two Ethernet interfaces, plus two slots for optional WAN interface cards:

•1-Ethernet 2-WAN card slot network module (NM-1E2W) (see Figure 3)

•2-Ethernet 2-WAN card slot network module (NM-2E2W) (see Figure 4)

•1-Ethernet 1-Token Ring 2-WAN card slot network module (NM-1E1R2W) (see Figure 5)

Figure 3 1-Ethernet 2-WAN Card Slot Network Module

Figure 4 2-Ethernet 2-WAN Card Slot Network Module

Figure 5 1-Ethernet 1-Token Ring 2-WAN Card Slot Network Module

Ethernet Connectors

The 1-port Ethernet network module, the 1-Ethernet 2-slot network module, and the 1-Ethernet 1-Token Ring 2-slot network module each provide a single Ethernet port. This port uses either the attachment unit interface (AUI) DB-15 connector on the right side of the module or the 10BASE-T (RJ-45) connector next to it. Only one of these connectors can be active at a time. The active port is identified in software by port type (Ethernet), slot number on the module, and port number 0.

All modules detect the type of network connection automatically, and you do not need to choose the media type in software. If cables are plugged into both ports, the 10BASE-T connection is chosen.

The 4-port Ethernet network module has ports for four Ethernet connections (0, 1, 2, and 3). Port 0 offers a choice of an AUI or 10BASE-T interface. Ethernet ports 1, 2, and 3 use 10BASE-T connectors only. These ports do not provide an AUI connector.

The 2-Ethernet 2-slot network module has ports for two Ethernet connections. Port 0 offers a choice of AUI or 10BASE-T. Port 1 uses 10BASE-T only.

Connecting Ethernet Ports

If an Ethernet port offers both an AUI connector and a 10BASE-T connector, you can use either connector, but not both at the same time.

AUI Connections

Use an Ethernet AUI cable to connect an AUI port to an Ethernet transceiver. These ports are color-coded yellow. The female end of the AUI cable mates with the slide-latch connector of the transceiver cable. Figure 6 shows a thin Ethernet transceiver as an example, but you can use any type of Ethernet transceiver.

If the transceiver cable has thumbscrew connectors, you can connect it directly to the AUI port by replacing the AUI port slide latch with a jackscrew (provided in a separate bag).

Figure 6 Connecting an Ethernet AUI Port to a Transceiver

10BASE-T Connections

Use an Ethernet 10BASE-T cable to connect a 10BASE-T port to a hub or other network device. These ports are color-coded yellow. Figure 7 shows the 10BASE-T port on an Ethernet network module connected to a hub.

Figure 7 Connecting an Ethernet 10BASE-T Port to a Hub

Ethernet LEDs

This section describes Ethernet module LEDs. Figure 8 shows 4-port Ethernet network module LEDs as an example.

All network modules have an enable (EN) LED. This LED indicates that the module has passed its self-tests and is available to the router.

Each Ethernet port has two LEDs. The activity (ACT) LED indicates that the router is sending or receiving Ethernet transmissions. The link (LINK) LED indicates that the Ethernet port is receiving the link integrity signal from the hub (10BASE-T only).

Figure 8 Ethernet Network Module LEDs (Typical)

Fast Ethernet Network Modules

Fast Ethernet connections are provided on 1-port Fast Ethernet modules, and on 1-port Fast Ethernet, 2-port Fast Ethernet, and 1-port Fast Ethernet 1-port Token Ring 2-WAN card slot modules.

1-Port Fast Ethernet Modules

The following network modules provide Fast Ethernet interfaces:

•1-port Fast Ethernet network module with TX connector, Cisco product number NM-1FE-TX. (See Figure 9.) This module provides an RJ-45 connector for direct connection to 100BASE-T Ethernet networks.

•1-port Fast Ethernet network module with FX connector, Cisco product number NM-1FE-FX. (See Figure 10.) This module provides a duplex SC-type fiber-optic port for direct connection to 100BASE-FX Ethernet networks.

Figure 9 1-Port Fast Ethernet Network Module (TX Connector)

Figure 10 1-Port Fast Ethernet Network Module (FX Connector)

Fast Ethernet 2-WAN Card Slot Modules

The following 2-slot network modules provide one or two 100BASE-T Fast Ethernet interfaces, plus two slots for optional WAN interface cards:

•1-Fast Ethernet 2-WAN card slot network module (NM-1FE2W and NM-1FE2W-V2). See Figure 11 for a sample faceplate.

•2-Fast Ethernet 2-WAN card slot network module (NM-2FE2W and NM-2FE2W-V2). See Figure 12 for a sample faceplate.

•1-Fast Ethernet 1-Token Ring 2-WAN card slot network module (NM-1FE1R2W and NM-1FE1R2W-V2). See Figure 13 for a sample faceplate.

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Caution To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect the 1-Fast Ethernet 2-WAN card slot network modules (NM-1FE2W-V2, NM-1FE2W), the 2-Fast Ethernet 2-WAN card slot network modules (NM-2FE2W-V2, NM-2FE2W), the 2 WAN Card Slot Network Module (NM-2W)and the 1-Fast Ethernet 1-Token Ring 2-WAN card slot network modules (NM-1FE1R2W) only to intrabuilding or nonexposed wiring or cabling. The intrabuilding cable must be shielded and the shield must be grounded at both ends. The intra-building port(s) of the equipment or subassembly must not be metallically connected to interfaces that connect to the OSP or its wiring. These interfaces are designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE, Issue 4) and require isolation from the exposed OSP cabling. The addition of Primary Protectors is not sufficient protection in order to connect these interfaces metallically to OSP wiring.

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Figure 11 1-Fast Ethernet 2-WAN Card Slot Network Module

Figure 12 2-Fast Ethernet 2-WAN Card Slot Network Module

Figure 13 1-Fast Ethernet 1-Token Ring 2-WAN Card Slot Network Module

Connecting Fast Ethernet Ports

Use the following sections for 100BASE-T or 100BASE-FX connections.

100BASE-T Connections

Use a two-pair Category 5 or unshielded twisted-pair (UTP) straight-through RJ-45 cable to connect a Fast Ethernet RJ-45 port to a switch, hub, repeater, server, or other network device. Figure 14 shows an RJ-45 port connected to a hub.

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Note RJ-45 cables are not available from Cisco Systems. These cables are widely available and must be Category 5 cables.

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Figure 14 Connecting a Fast Ethernet RJ-45 Port to a Hub

100BASE-FX Connections

Attach a multimode fiber-optic cable with SC-type connectors directly to the port on the Fast Ethernet network module (remove the protective plug from the port if it is present). Use either one duplex SC connector (see Figure 15 and Figure 17) or two simplex SC connectors (see Figure 16 and Figure 18). Attach the other end of the cable to a repeater, hub, or wall outlet. Be sure to observe the correct relationship between the receive (RX) and transmit (TX) ports on the network module and the cable.

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Note Multimode SC-type fiber-optic cables are widely available commercially. Cisco Systems does not supply these cables.

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Figure 15 Duplex SC Connector

Figure 16 Simplex SC Connector

Figure 17 Connecting a Fast Ethernet FX Port to a Repeater or Hub (Duplex Connector)

Figure 18 Connecting a Fast Ethernet FX Port to a Repeater or Hub (Simplex Connectors)

Fast Ethernet LEDs

This section describes Fast Ethernet module LEDs. Figure 19 shows 1-port Fast Ethernet network module LEDs as an example.

Figure 19 1-Port Fast Ethernet Network Module LEDs

All network modules have an enable (EN) LED. The enable LED indicates that the module has passed its self-tests and is available to the router.

Fast Ethernet network modules have the additional LEDs shown in Table 1.

Table 1 Fast Ethernet Network Module LEDs

LED	Meaning
COL	Collision activity is occurring on the network.
LINK	A link has been established with the station at the other end of the cable.
100MBPS	Speed of the interface is 100 Mbps.
FULL DPLX	Interface is in full-duplex mode.

Token Ring Network Modules

The following network modules provide Token Ring interfaces:

•1-port Ethernet 1-port Token Ring 2-WAN card slot module (NM-1E1R2W) (see Figure 20)

•1-port Fast Ethernet 1-port Token Ring 2-WAN card slot module (NM-1FE2R2W) (see Figure 21)

Figure 20 1-Ethernet 1-Token Ring 2-WAN Card Slot Network Module

Figure 21 1-Fast Ethernet 1-Token Ring 2-WAN Card Slot Network Module

Connecting Token Ring Ports

The 1-Ethernet 1-Token Ring 2-WAN card slot network module and the 1-Fast Ethernet 1-Token Ring 2-WAN card slot network module each have one DB-9 connector for an STP Token Ring connection and one RJ-45 connector for a UTP Token Ring connection. Only one connector can be active at a time.

To connect the module to a Token Ring network, attach one end of a shielded Token Ring lobe cable to the DB-9 connector on the network module (see Figure 22), or attach one end of an unshielded Token Ring lobe cable to the UTP connector on the network module (see Figure 23). Attach the other end of the cable to the Token Ring media attachment unit (MAU). The network module automatically detects which connector is in use.

Figure 22 Connecting a Token Ring STP Port (DB-9) to a MAU

Figure 23 Connecting a Token Ring UTP Port (RJ-45) to an MAU

Token Ring LEDs

All network modules have an enable (EN) LED. The enable LED indicates that the module has passed its self-tests and is available to the router.

The 1-Ethernet 1-Token Ring 2-WAN card slot network module and the 1-Fast Ethernet 1-Token Ring 2-WAN card slot network module both have the following Token Ring LEDs:

•The 16MBPS LED indicates a ring speed of 16 Mbps. If it is off, the ring speed is 4 Mbps.

•The IN-RING LED indicates that the Token Ring interface is inserted into the ring. If it is off, the interface is not inserted into the ring.

The 1-Fast Ethernet 1-Token Ring 2-slot network module also has the FDX LED, which indicates full-duplex mode.

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Timesaver When the IN-RING LED is off, you can unplug the Token Ring cable without causing a problem on the ring.

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Related Documents

For additional information, see the following documents and resources.

Related Topic	Document Title
Regulatory compliance and safety information	Cisco Network Modules and Interface Cards Regulatory Compliance and Safety Information http://www.cisco.com/en/US/docs/routers/access/interfaces/rcsi/IOHrcsi.html
Cisco IOS software website and reference documentation	Cisco IOS Software http://www.cisco.com/web/psa/products/index.html?c=268438303

Obtaining Documentation, Obtaining Support, and Security Guidelines

For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

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