Table Of Contents
Connecting a Terminal to the Management Port
Connecting a Terminal to the Console Port
Connecting Ethernet Ports with MT-RJ Connectors
Attaching Module Interface Cables
Installing, Removing, and Maintaining GBICs
GBIC Optical Power Characteristics
Patch Cord Configuration Example
Preparing for Installation
Warning
Read the installation instructions before connecting the system to the power source. Statement 1004
Warning
Warning
Warning
This chapter describes how to prepare your Catalyst 4500 series switch for the installation of the supervisor engines and switching modules. The information is presented in these major sections:
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This chapter does not tell you how to install your Catalyst 4500 series switch. For that information, see "Installing the Modules."
Connecting a Terminal to the Management Port
The Ethernet management port, located on the front panel of the Catalyst 4500 series supervisor engine, is shown in the previous chapter in Figure 1-1 through Figure 1-8. The Ethernet management port uses an RJ-45 media-dependent interface crossed-over (MDIX) connector (see Figure 2-1).
Note
See the tables in "Port Pinouts, Environmental Specifications, and Power Consumption Information," for port pinouts.
Figure 2-1 100BASE-TX RJ-45 Connector Type
Connecting a Terminal to the Console Port
The console port, located on the front panel of the Catalyst 4500 series supervisor engine, is shown in the previous chapter in Figure 1-1 through 1-8. The console port for the Supervisor Engine I is a DCE DB-25 receptacle (see Figure 2-2), which supports a DCE EIA/TIA-232 interface. EIA/TIA-232 supports unbalanced circuits at signal speeds up to 64 kbps. See the tables in "Port Pinouts, Environmental Specifications, and Power Consumption Information," for port pinouts. All other supervisor engine console ports use an RJ-45 connector.
Figure 2-2 DCE DB-25 Connector
Use a null-modem cable to connect the switch to a remote DCE device, such as a modem or data service unit (DSU). Use a straight-through cable to connect the switch to a DTE device, such as a terminal or PC. Figure 2-3 shows the DTE and DCE cable connectors.
Figure 2-3 EIA/TIA-232 Adapter Cable Connectors, Network End
Connecting Ethernet Ports with MT-RJ Connectors
Use the guidelines shown in Table 2-1 for switching modules that have MT-RJ connectors (see Figure 2-4).
Table 2-1 MT-RJ Connector Guidelines
Optical transmit power
-19 to -14 dbm1 average for 62.5/125 um fiber;
-23.5 to -14 dbm average for 50/125 um fiberReceiver sensitivity
-33.5 dbm average at window edge;
34.5 dbm average at window center
1 dbm = decibels per milliwatt
Figure 2-4 MT-RJ Connector
Attaching Module Interface Cables
Figure 2-5 through Figure 2-11 show the connector types used to attach interface cables to the supervisor engine and switching modules.
Figure 2-5 RJ-21 Telco Interface 90-Degree Cable Connector
Figure 2-6 RJ-21 Telco Interface 180-Degree Cable Connector
Figure 2-7 RJ-45 Connector
Figure 2-8 Single LC Connector
Figure 2-9 Double LC Connector
Figure 2-10 SC-Type Fiber-Optic Connector
Note
Warning
Figure 2-11 MT-RJ Fiber-Optic Connector
When you are connecting MT-RJ cables to a module, make sure that you firmly press the network cable plug into the socket. The upper edge of the plug must snap into the upper front edge of the socket. You might hear an audible click. Gently pull on the plug to determine whether or not the plug is locked into the socket.
To disconnect the plug from the socket, press down on the raised portion on top of the plug, releasing the latch. You should hear an audible click, which would indicate that the latch has released. Carefully pull the plug out of the socket.
Note
Always make sure that you insert the connector completely into the socket. This is especially important when you are making a connection between a module and a long-distance (2 km) or possibly a highly attenuated network. If the link LED does not light, try removing the network cable plug and reinserting it firmly into the module socket.
Dirt or skin oils also may have accumulated on the plug faceplate (around the optical-fiber openings), which can generate significant attenuation and reduce the optical power levels below threshold levels so that a link cannot be made.
To clean the MT-RJ plug faceplate, follow this procedure:
Step 1
Step 2
Warning
Note
Installing, Removing, and Maintaining GBICs
The following sections describe Gigabit Interface Converters (GBICs) and how to install, remove, and maintain them.
Overview of GBICs
GBICs are online swappable I/O devices that plug into a Gigabit Ethernet port of a module, and links the module with a fiber-optic network. Figure 2-12 shows a GBIC.
Figure 2-12 GBIC
GBICs use SC-type connectors. The GBICs fit through cutouts in the front of the module and plug into connectors on the module. You can install any combination of GBICs in the Gigabit Ethernet switching module.
The following GBIC media types are supported in all GBIC ports on all Catalyst 4500 series supervisor engines and switching modules:
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Note
Note
Note
If an LX/LH GBIC designed for operation on an SMF cable is directly coupled to an MMF cable, an effect known as Differential Mode Delay (DMD) might occur. See "Differential Mode Delay," for more information on DMD.
Caution
GBICs are Class 1 laser products. Read the Regulatory Safety and Compliance Information document for information related to working with lasers.
Overview of CWDM GBICs
Eight GBICs are available for use with the Coarse Wave Division Multiplexer (CWDM) Passive Optical System. Figure 2-13 shows a CWDM GBIC. Table 2-2 lists the CWDM GBICs, all of which are used with single-mode fiber-optic cable. These eight GBICs can be installed in the Catalyst 4500 series modules that support GBICs and are used with the CWDM Passive Optical System. For more information on the CWDM Passive Optical System, refer to the Installation Note for the CWDM Passive Optical System.
Figure 2-13 CWDM GBIC
WS-G5483 Copper GBIC
Note
The WS-G5483 GBIC, shown in Figure 2-14, uses Category 5 UTP/FTP cable to provide 1000BASE-T full-duplex connectivity between the Ethernet module or supervisor engine and the network up to a distance of 328 feet (100 m). Refer to your release notes or the online 1000BASE-T GBIC Switch Compatibility Matrix posted with the GBIC documentation on Cisco.com for the list of modules and the required software release level necessary to support this GBIC. For more information about the WS-G5483 GBIC, refer to the 1000BASE-T GBIC Installation Notes.
Caution
Caution
Figure 2-14 Copper GBIC (WS-G5483)
Port Cabling Specifications
The length of your networks and the distances between connections depend on the type of signal, the signal speed, and the transmission medium (the type of cabling used to transmit the signals). The distance and rate limits in this chapter are the IEEE-recommended maximum speeds and distances for signaling. Table 2-3 shows the transmission speed versus the distance.
Table 2-3 EIA/TIA-232 Transmission Speed Versus Distance
2400
200
60
4800
100
30
9600
50
15
19,200
25
7.6
38,400
12
3.7
56,000
8.6
2.6
This section includes the following topics:
Maximum Cable Distances
Table 2-4 shows the maximum cable distances for transceiver speed and cable type.
Table 2-5 provides cabling specifications for the GBICs that you install in the Gigabit Ethernet port modules. All GBIC ports have SC-type connectors, and the minimum cable distance for all GBICs listed is 6.5 feet (2 meters).
Table 2-5 GBIC Port Cabling Specifications
(MHz/km)BASE-T
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Category 5 UTP
-
-
328 ft (100 m)
SX1
850
MMF
62.5
160
722 ft (220 m)
62.5
200
902 ft (275 m)
50.0
400
1640 ft (500 m)
50.0
500
1804 ft (550 m)
LX/LH
1300
MMF2
62.5
500
1804 ft (550 m)
50.0
400
1804 ft (550 m)
50.0
500
1804 ft (550 m)
SMF
9/10
-
6.2 mi (10 km)
ZX
1550
SMF
9/10
-
43.5 mi (70 km)
SMF3
9/10
-
62.1 mi (100 km)
1 MMF only.
2 Patch cord required. (See the "Patch Cord" section for details.)
3 Dispersion-shifted single-mode fiber-optic.
The maximum cable distance for CWDM and DWDM cabling depends on fiber type, fiber quality, and number of WDM filters in the design, and can vary widely.
Using a Patch Cord
When using the LX/LH GBIC with 62.5-micron diameter MMF, you must install a mode-conditioning patch cord (Cisco product number CAB-GELX-625 or equivalent) between the GBIC and the MMF cable on both the transmit and receive ends of the link.
The patch cord is required for link distances greater than 984 feet (300 meters) and must comply with IEEE standards. The IEEE found that link distances could not be met with certain types of fiber-optic cable due to a problem in the center of some fiber-optic cable cores. The solution is to launch light from the laser at a precise offset from the center by using the patch cord. At the output of the patch cord, the LX/LH GBIC is compliant with the IEEE 802.3z standard for 1000BASE-LX. For a detailed description of this problem, refer to the Catalyst 4000 Series Installation Guide or Catalyst 4500 Series Installation Guide.
Note
Cisco Gigabit Ethernet products have been tested and evaluated to comply with the standards listed in Appendix A, "Specifications," of the Catalyst 4000 Series Installation Guide or Catalyst 4500 Series Installation Guide. All equivalent cables should also meet these standards.
GBIC Optical Power Characteristics
Table 2-6 provides the GBIC optical power characteristics.
Table 2-6 GBIC Optical Power Characteristics
Transmitter output power (min/max)
0/-9.5 dBm1
-3/-9.5 dBm
0/4.77 dBm
Receiver maximum input power
0 dBm
-3 dBm
-3 dBm
Receiver sensitivity
-17 dBm
-19 dBm
-23 dBm
Channel insertion loss
50/125 micron2 MMF
3.4 dBm
4.4 dBm
—
62.5/125 micron MMF
3.2 dBm
6 dBm
—
9/10 micron SMF
—
6.5 dBm
21.5 dBm
1 dBm = decibels per milliwatt
2 1 micron equals 1 micrometer or 10-6 meters
GBIC Cabling Restrictions
You must observe the following optical-fiber cabling restrictions when cabling GBICs:
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The IEEE found that link distances could not be met with certain types of fiber-optic cable cores. The solution is to launch light from the laser at a precise offset from the center by using the mode-conditioning patch cord. At the output of the patch cord, the LX/LH GBIC is compliant with the IEEE 802.3z standard for 1000BASE-LX. See "Differential Mode Delay," for more information.
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Installing GBICs
A module can be shipped with or without GBICs installed. If you need to install a GBIC, follow the procedures in this section.
Caution
Caution
To install a GBIC, follow these steps:
Step 1
Step 2
Step 3
Note
Figure 2-15 Installing a GBIC
Step 4
Warning
Step 5
Caution
Step 6
Note
Note
Figure 2-16 SC-Type Connector
Removing GBICs
This section describes how to remove GBICs from a supervisor engine or switching module.
Warning
To remove a GBIC, follow these steps:
Step 1
Step 2
Step 3
Step 4
GBIC Maintenance Guidelines
Follow these GBIC maintenance guidelines:
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Patch Cord
When using the LX/LH GBIC with a 62.5-micron diameter MMF, you must install a mode-conditioning patch cord (Cisco product number CAB-GELX-625, or equivalent) between the GBIC and the MMF cable on both the transmit and receive ends of the link. The patch cord is required for link distances greater than 984 feet (300 meters).
Note
Note
Note
Patch Cord Configuration Example
Figure 2-17 shows a typical configuration that uses the patch cord.
Figure 2-17 Patch Cord Configuration
Patch Cord Installation
Warning
The patch cord is 3 m (9.84 feet) long and has duplex SC-type male connectors at each end. Plug the end of the patch cord labeled "To equipment" into the GBIC (see Figure 2-18). Plug the end labeled "To cable plant" into the patch panel.
Figure 2-18 Patch Cord Installation
Installing SFP Modules
The 48-port Gigabit Ethernet optical line terminator switching module has 48 ports that can be configured with any combination of small form-factor pluggable (SFP) modules. This switching module uses 1000BASE-LX SFP modules (30-1299-01) with LC connectors, as shown in Figure 2-19.
Warning
Caution
Figure 2-19 Connecting LC Connectors to the SFP Module
The SFP modules have three different types of latching devices used to secure and detach the SFP module from a switching module port. The three types of SFP modules are described in the following sections:
Mylar Tab SFP Modules
The Mylar tab SFP module (see Figure 2-20) has a tab that you must pull in order to remove the module from a switching module port.
Figure 2-20 Mylar Tab SFP Module
To insert the Mylar tab SFP module into a switching module port, line up the SFP module with the port, and slide it into place (see Figure 2-21).
Figure 2-21 Inserting a Mylar Tab SFP Module
Caution
To remove the SFP module from the switching module port, pull the tab gently until the SFP module disengages from the port, and then pull the SFP module out (see Figure 2-22).
Figure 2-22 Removing a Mylar Tab SFP Module
Actuator/Button SFP Modules
The actuator/button SFP module (see Figure 2-23) has a button that you must push in order to remove the SFP module from a switching module port.
Figure 2-23 Actuator/Button SFP Module
To insert the actuator/button SFP module into a switching module port, line up the SFP module with the port and slide it in until the actuator/button clicks into place (see Figure 2-24). Be sure not to press the actuator/button as you insert the SFP module because you might inadvertently disengage the SFP module from the port.
Figure 2-24 Inserting an Actuator/Button SFP Module
To remove an actuator/button SFP module from a switching module port, perform the following steps:
Step 1
Step 2
Figure 2-25 Press the Actuator/Button to Remove an SFP Module
Bale Clasp SFP Modules
The bale clasp SFP module (see Figure 2-26) has a bale clasp that you use to secure the SFP module in a switching module port.
Figure 2-26 Bale Clasp SFP Module
To insert a bale clasp SFP module into a switching module port, perform the following steps:
Step 1
Step 2
Figure 2-27 Inserting a Bale Clasp SFP Module into a Switching Module Port
To remove a bale clasp SFP module from a switching module port, perform the following steps:
Step 1
Step 2
Figure 2-28 Removing a Bale Clasp SFP Module
Figure 2-29 Opening a Bale Clasp with a Flat-Blade Screwdriver
