Catalyst 4900M Switch Chassis

Catalyst 4900M Switch Chassis
CH A P T E R
1
Product Overview
Revised: January 4, 2012
This chapter describes the Catalyst 4900M switch and the supported half-card Ethernet modules. The
chapter contains these sections:
•
Catalyst 4900M Switch Chassis, page 1-1
•
Catalyst 4900M Half-Card Modules, page 1-8
•
Serial Number Location, page 1-14
Catalyst 4900M Switch Chassis
The Catalyst 4900M switch is a 2 RU horizontal high-performance dedicated Ethernet switch. The
chassis has 8 fixed 1-GB or 10-GB ports and two half-card Ethernet module slots that can accommodate
a several different styles of half-card Ethernet modules. The switch has one removable variable-speed
fan tray and supports redundant power supplies. Figure 1-1 shows the front of the chassis.
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Catalyst 4900M Switch Chassis
Catalyst 4900M Switch Chassis
232121
Figure 1-1
Catalyst 4900M Switch Chassis Features
Table 1-1 lists the features of the Catalyst 4900M switch chassis.
Table 1-1
Catalyst 4900M Switch Features
Feature
Description
Chassis
8-port fixed configuration plus 2 half-card module slots
Uplink ports
8 10-Gigabit ports that support X2 transceivers. By using the Cisco OneX
converter, the 8-ports also support SFP+ transceivers.
Slots
2 half-card module slots are available allowing you to configure the chassis
to your specific needs.
Memory
512-MB SDRAM, 128-MB Flash (onboard and fixed), 256 bytes serial
EEROM
Console port
A console serial port (RJ-45) provides for switch management using
standard console equipment. (See Figure 1-2.)
Note
Ethernet management port
A console cable is not provided in the accessory kit. It can be ordered
as an option.
The management port on the rear panel offers the same TCP/IP based
management services available via inband access (telnet SNMP etc.). IP
address configuration via BOOTP is supported on the Management port; it
also supports image download to the switch.
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Catalyst 4900M Switch Chassis
Table 1-1
Catalyst 4900M Switch Features (continued)
Feature
Description
Reset switch
The Reset button is used to restart the switch. Use a paper clip or other small,
pointed object to press the Reset button.
Fan tray
Variable-speed. Field replaceable.
Power supplies
1000 W AC-input and 1000 W DC-input power supplies are supported.
Note
A console cable is not provided as part of the accessory kit. It is available as an option.
Catalyst 4900M Switch Chassis Physical and Environmental Specifications
Table 1-2 lists the Catalyst 4900M switch chassis environmental and physical specifications.
Table 1-2
Catalyst 4900M Switch Specifications
Item
Specification
Environmental
Temperature, operating
Certified for operation: 32° to 104°F (0° to 40°C)
Designed and tested for operation: 32° to 131°F (0° to 55°C)
Note
Each module on a Catalyst 4900M switch is equipped with internal inlet
and outlet air temperature sensors. When a sensor detects that
temperature reaches the first threshold, a minor alarm is generated;
second threshold, a major alarm is generated; third threshold, the system
shuts down. Use the show environment temperature command to
check the threshold values.
Temperature, nonoperating
and storage
–40° to 167°F (–40° to 75°C)
Humidity (RH), ambient
(noncondensing) operating
10% to 90%
Altitude, operating
Certified for operation: –197 to 6562 ft (–60 to 2000 m)
Heat Dissipation
1364 BTU/hour (worst case)
Physical Characteristics
Dimensions (H x W x D)
Weight
Airflow
•
3.5 x 17.2 x 17.9 in. (8.9 x 43.7 x 45.5 cm).
•
Chassis requires 2 RU1.
•
The Catalyst 4900M switch chassis is designed to install in standard
19-inch equipment racks that meet ANSI/EIA 310-D, IEC 60297, and
ETS 300-119 standards.
34.0 lb (15.4 kg) (max)
151.7 CFM (max)
1. RU = rack units
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Catalyst 4900M Switch Chassis
Catalyst 4900M Switch Chassis Rear Panel Connections and Features
Figure 1-2 shows the chassis rear panel with the major features identified.
Figure 1-2
View of the Rear Panel
2
1
2
3
232122
1
4
5
7
8
6
1
Input OK LED (power
supply)
5
Console port
2
Output OK LED (power
supply)
6
Management port
3
Fan Status LED
7
USB connector
4
Reset button
8
Compact Flash slot
The chassis rear panel features include:
•
Reset button—The Reset button is used to restart the switch. Use a paper clip or other small, pointed
object to press the Reset button.
•
Console port—A console serial port (RJ-45) provides for switch management using standard
console equipment. (See Figure 1-2.) A connector pinout table is provided in Appendix 1,
“Specifications,” for the console and management ports.
•
Management port—The Management port on the rear panel offers the same TCP/IP based
management services available via inband access (telnet SNMP etc.). IP address configuration via
BOOTP is supported on the Management port; it also supports image download to the switch.
•
USB connector—A USB connector is provided for future expansion.
•
Compact Flash slot—The Compact Flash slot accepts both 64-MB and 128-MB Type 1 compact
Flash cards. You can use it for file transfer tasks such as loading a new software image. The Flash
card is optional and can be obtained from third-party suppliers.
For more information, refer to Using the Compact Flash on the Catalyst 4500 Series Supervisor
Engines at the following URL:
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/configuration/notes/OL_27
88.html
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Catalyst 4900M Switch Chassis
Front Panel LEDs
A set of LEDS on the chassis front panel (see Figure 1-3) provide visual status for the switch. Table 1-3
lists the front panel LEDS and their meanings.
Figure 1-3
4
1
3
5
1
PS1 LED
4
System LED
2
PS2 LED
5
10Gig port LEDs
3
Fan LED
Table 1-3
Front Panel LED Descriptions
LED
Description
System
The system LED indicates the operating state of the Catalyst 4900M
switch. At startup, the Catalyst 4900M performs a series of
diagnostic tests:
(front)
•
Green—All tests pass
•
Red—A test other than an individual port test fails
•
Off—System is in rommon mode or a power supply has failed
Switch is disabled
CON
•
Green—10/100 BASE-T console port is in link-up state
Console port
•
Off—10/100 BASE-T console port is in link-down state or not
connected
Note
There are no blinking, red, or yellow states for this port
(rear)
MGT
232123
2
Chassis Front Panel LEDs
•
Green—10/100/1000BASE-T Management port is in link-up
state.
•
Off—10/100/1000BASE-T Management port is in link-down
state or not connected.
(rear)
Note
There are no blinking, red, or yellow states for this port.
Port
•
Green—Port is operational.
(front)
•
Yellow—Port is disabled by user.
•
Flashing yellow—Power-on self-test indicates faulty port.
•
Off—No signal detected or link configuration failure.
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Catalyst 4900M Switch Chassis
Table 1-3
Front Panel LED Descriptions (continued)
LED
Description
Fan
FAN LED indicates the fan tray status.
(front and rear)
PS1 and PS2
(front)
LINK
•
Green—Fan tray operational.
•
Red—Fault detected. One or more fans not functional.
•
Off—No power to the fan tray.
PS1 and the PS2 LEDs indicates the internal power supply status.
•
Off—No power to the power supply.
•
Green—Operational.1
•
Red—Fault detected or the on/off switch is set to off while the
power supply is plugged in.
A link status LED is located below the 10-GB uplink ports.
1. If either LED is green and the other is OFF the power supply is probably not plugged in. If it is red, the
supply is either plugged in and not switched on or it is faulty. It may be necessary to interrogate the system
for further status using the CLI.
Chassis Cooling
The hot-swappable chassis fan tray (WS-X4992) provides cooling air for the internal chassis
components. The fans draw air in from the right side of the chassis and exhaust the heated air through
perforations on the right side of the chassis.
Caution
When the fan tray is removed, internal circuitry is exposed that should not be touched by tools or fingers.
The system should not operate without a fan tray for longer than is necessary to replace a faulty fan tray
with a new fan tray.
Figure 1-4 shows the direction of airflow through the switch.
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Catalyst 4900M Switch Chassis
Catalyst 4900M Chassis Airflow
232124
Figure 1-4
There are five fans in the fan tray. If an individual fan fails, the other fans continue to run. Sensors
monitor the internal air temperatures. The number of fans in operation and their speed varies according
to the internal temperature for the quietest operation possible. If the air temperature exceeds a desired
threshold, the environmental monitor displays warning messages.
Note
Individual fans in the fan tray cannot be replaced; the entire fan tray must be replaced.
Power Supplies
Note
For complete power specifications for the Catalyst 4900M switch, see Appendix 1, “Specifications.”
The Catalyst 4900M switch has two redundant internal 1000 W AC-input or 1000 W DC-input power
supplies.
The internal power supplies have individual power cords and status LEDs (PS1 and PS2 on the front
panel). There are also LEDs on the power supplies that show status for the input (Input OK) and output
(Output OK) currents. A power cord is used to connect the power supplies to the site AC source. There
is a power switch on the AC-input power supplies; AC power is present when a power cord is plugged
into a power supply and the switch is set to the On position. DC-input power supplies attach to source
DC using customer-supplied cables.
The switch starts with only one power supply plugged in, but redundant failover and load sharing is not
available in this configuration. Cisco recommends that you always connect both power supplies to
separate AC or DC circuits for optimal power reliability.
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Catalyst 4900M Half-Card Modules
For safety reasons, the AC power supply must be switched off and unplugged before it is removed from
a chassis or inserted into a chassis. DC supplies should have power shut off from the source before they
are removed.
If only one power supply is used, you must use the supplied blank faceplate to cover the empty power
bay. The blank power supply cover maintains EMI shielding and proper air flow through the chassis.
Environmental Monitoring of the Power Supplies
Using the environmental monitoring and reporting functions, you can maintain normal system operation
by resolving adverse environmental conditions prior to loss of operation.
Each power supply monitors its own temperature and output voltages. The Catalyst 4900M switch senses
the operating condition of the power supply and reports status through software.
Power Management for the Catalyst 4900M Switch
You can select either AC-input or DC-input power supplies for your switch. The Catalyst 4900M switch
supports the following power supplies:
•
1000 W AC-input
•
1000 W DC-input
A redundant power supply can be identified and diagnosed by a running system regardless of its input
status. The AC-input and DC-input supplies are interchangeable.
Power Management Modes
The Catalyst 4900M switch supports the redundant power management mode. In this mode, if both
power supplies are operating normally, each provides from 20/80 to 45/55 percent of the total system
power requirements at all times. If one power supply fails, the other unit increases power to 100 percent
of the total power requirement.
Catalyst 4900M Half-Card Modules
The Catalyst 4900M switch chassis has two half-card slots available allowing two half-card modules to
be installed. The following half-card modules are available:
•
WS-X4920-GB-RJ45 Half-Card Ethernet Module, page 1-9
•
WS-X4904-10GE Half-Card Ethernet Module, page 1-10
•
WS-X4908-10GE Half-Card Ethernet Module, page 1-11
•
WS-X4908-10G-RJ45 Half-Card Ethernet Module, page 1-13
The half-card modules can be mixed in a chassis.
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Catalyst 4900M Half-Card Modules
WS-X4920-GB-RJ45 Half-Card Ethernet Module
The WS-X4920-GB-RJ45 half-card Ethernet module provides 20 10/100/1000-Mbps full-or half-duplex
ports. Figure 1-5 shows the module with the major features identified.
Figure 1-5
WS-X4920-GB-RJ45 Half-Card Ethernet Module
1
1
232118
2
2
Module status LED
Port LEDs
Table 1-4 lists the specifications for the WS-X4920-GB-RJ45 half-card Ethernet Module.
Table 1-4
WS-X4920-GB-RJ45 Half-Card Module Specifications
Specification
Description
Module type
10/100/1000BASE-T half-card Ethernet module
Port duplex mode
Half- or full-duplex mode
Port speed
10, 100, or 1000 Mbps
Number of ports
20
Connector type
RJ-45
Cable type
Category 5 and Category 6
Cabling distance
328 ft (100 m)
Pluggable transceivers
support
Not supported
Module upgrades
available
None
Power over Ethernet
Not supported
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Catalyst 4900M Half-Card Modules
WS-X4904-10GE Half-Card Ethernet Module
The WS-X4904-10GE half-card Ethernet module provides 4 10-Gigabit Ethernet ports. Figure 1-6
shows the module.
WS-X4904-10GE Half-Card Ethernet Module
232119
Figure 1-6
1
2
1
2
Module Status LED
Port LEDs
Table 1-5 list the specifications for the WS-X4904-10GE half-card Ethernet module.
Table 1-5
WS-X4904-10GE Half-Card Ethernet Module Specifications
Specification
Description
Module type
10-Gigabit Ethernet module
Port duplex mode
Full-duplex mode
Port speed
10G Mbps
Number of ports
4
Connector type
SC (optical)
Cable type
MMF or SMF
Cabling distance
Dependent on the type of X2 transceiver installed
Pluggable transceivers
support
X2 transceivers
Module upgrades
available
None
Power over Ethernet
Not supported
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Catalyst 4900M Half-Card Modules
WS-X4908-10GE Half-Card Ethernet Module
The WS-X4908-10GE module (Figure 1-7) is an 8-port 10-Gigabit Ethernet module that has the ability
to operate as a 16 port 1-Gigabit module by installing a Cisco TwinGig converter module in the X2
transceiver socket and then installing two 1-Gigabit SFP transceivers in the TwinGig converter.
8-Port 10-Gigabit Ethernet Module (WS-X4908-10GE)
232120
Figure 1-7
1
2
1
2
Module Status LED
Port LEDs
Table 1-6 list the specifications for the WS-X4908-10GE half-card Ethernet module.
Table 1-6
WS-X4908-10GE Half-Card Ethernet Module Specifications
Specification
Description
Module type
10-Gigabit Ethernet module
Port duplex mode
Full-duplex mode
Port speed
10G Mbps
Number of ports
8 (10-Gigabit) or 16 (1-Gigabit). Each 10-Gigabit
port on the module can be converted into two
1-Gigabit ports using a Cisco TwinGig converter
module (CVR-X2-SFP) and SFP transceivers. Each
10-Gigabit X2 port can also be converted into one
10-Gigabit SFP+ transceiver port by installing a Cisco
OneX converter module ((CVR-X2-SFP10G).
Connector type
SC (optical) or RJ-45 (copper)
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Catalyst 4900M Half-Card Modules
Table 1-6
WS-X4908-10GE Half-Card Ethernet Module Specifications (continued)
Specification
Description
Cable type
MMF or SMF (optical) or Category 5 or Category 6
(copper)
Cabling distance
Dependent on the type of X2, SFP, or SFP+
transceiver installed
Pluggable transceivers
support
•
X2 transceivers
•
SFP+ transceiver (using a Cisco OneX converter
module)
•
SFP transceiver (using a Cisco TwinGig converter
module)
Module upgrades
available
None
Power over Ethernet
Not supported
Note
TwinGig converter modules may be installed in place of X2 transceiver modules if you need 1-GB SFP
transceiver connections. When you insert the TwinGig into one port, its neighbor port automatically
converts to 1 GE interfaces whether it has a TwinGig installed or not, so you must position your TwinGig
converters next to each other. The neighboring port to a TwinGig port cannot support an X2. Installation
documentation for Cisco TwinGig converter modules can be found at:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3750e_3560e/hardware/install/notes/1757202.h
tml
Note
When using TwinGig converters and X2 transceivers on this module, keep them grouped in pairs as
follows: ports 1–2, ports 3–4, ports 5–6 and ports 7–8. Inserting a TwinGig converter or X2 transceiver
in any port will affect the capability of its neighbor port, and both will be set to handle the same type
automatically. Mixing within a port group does not work. As an example, you would not be able to have
an X2 transceiver in port 1 and a TwinGig converter in port 2.
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Catalyst 4900M Half-Card Modules
WS-X4908-10G-RJ45 Half-Card Ethernet Module
The WS-X4908-10G-RJ45 half-card Ethernet module provides 8 10Gbps full-or half-duplex ports.
Figure 1-8 shows the module with major features identified.
Figure 1-8
WS-X4908-10G-RJ45 Half-Card Ethernet Module
WS
-X4
90
8-1
0G
-RJ
45
1
1G
254342
LIN
K
ST
AT
US
1
2
3
1
Module status LED
2
LINK LED
3
1G LED (port operating in 1-Gbps mode)
Table 1-7 lists the specifications for the WS-X4908-G-RJ45 half-card Ethernet module.
Table 1-7
WS-X4908-10G-RJ45 Half-Card Module Specifications
Specification
Description
Module type
1-GB or 10-G half-card Ethernet module
Port duplex mode
Half- or full-duplex mode
Port speed
1-Gbps or 10-Gbps
Number of ports
8
Connector type
RJ-45
Cable type
Category 6, Category 6a, and Category
Cabling distance
Category 6—Up to 180.5 ft (55 m) at 10-Gbps. Up to
328 ft (100 m) at 1-Gbps.
Category 6a and Category 7—Up to 328 ft (100 m) at
both 10-Gbps and 1-Gbps.
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Serial Number Location
Table 1-7
WS-X4908-10G-RJ45 Half-Card Module Specifications (continued)
Specification
Description
Pluggable transceivers
support
Not supported
Module upgrades
available
None
Power over Ethernet
Not supported
Serial Number Location
Figure 1-9 shows the location of the serial number for your switch. You will need this information when
contacting Cisco for support.
Catalyst 4900M Chassis Serial Number
202519
Figure 1-9
SN: XXXNNNNXXXX
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