Brocade 4920 Fibre Channel switch BR-4920-0000-A Data Sheet

SAN DATA ShEET

© 2007 Brocade Communications Systems, Inc. All Rights Reserved. 01/07 GA-DS-781-03
Brocade, the Brocade B-weave logo, Fabric oS, File Lifecycle Manager, MyView, Secure Fabric oS, SilkWorm, and

StorageX are registered trademarks and the Brocade B-wing symbol and Tapestry are trademarks of Brocade

Communications Systems, Inc., in the United States and/or in other countries. FICoN is a registered trademark of IBM

Corporation in the U.S. and other countries. All other brands, products, or service names are or may be trademarks or

service marks of, and are used to identify, products or services of their respective owners.
Notice: This document is for informational purposes only and does not set forth any warranty, expressed or implied,

concerning any equipment, equipment feature, or service offered or to be offered by Brocade. Brocade reserves the

right to make changes to this document at any time, without notice, and assumes no responsibility for its use. This

informational document describes features that may not be currently available. Contact a Brocade sales office for 

information on feature and product availability. Export of technical data contained in this document may require an

export license from the United States government.

Corporate Headquarters 
San Jose, CA USA
T: (408) 333-8000
info@brocade.com

European Headquarters 
Geneva, Switzerland
T: +41 22 799 56 40
emea-info@brocade.com

Asia Pacific Headquarters 
Singapore
T: +65-6538-4700
apac-info@brocade.com

systems Architecture

Fibre Channel ports

64 ports, universal (E, F, and FL)

Scalability

Full fabric architecture with 239 switches maximum

Certified maximum

56 switches, 7 hops; larger fabrics may be certified 

as required

Performance

1.063 Gbit/sec line speed, full duplex; 2.125

Gbit/sec line speed, full duplex; 4.25 Gbit/sec line

speed, full duplex and auto-sensing of 1, 2, and 4

Gbit/sec port speeds; optionally programmable to

fixed port speed; speed matching between 1, 2, 

and 4 Gbit/sec ports

ISL Trunking

Up to eight 4 Gbit/sec ports per ISL trunk;

up to 32 Gbit/sec per ISL trunk

Aggregate bandwidth

512 Gbit/sec end to end

Fabric latency

~700 nanoseconds within a locally switched group

and <2.4 µsec with no contention, cut-through

routing at 4 Gbit/sec between locally switched groups

Maximum frame size

2112-byte payload

Classes of service

Class 2, Class 3, Class F (inter-switch frames)

Port types

FL_Port, F_Port, and E_Port; self-discovery

based on switch type (U_Port)

Data traffic types

Fabric switches supporting unicast and broadcast

Media types

hot-pluggable, industry-standard Small Form-factor

Pluggable (SFP), LC connector; Short-Wavelength

Laser (SWL) up to 500 meters (1640 feet); Long-

Wavelength Laser (LWL) up to 10 km (6.2 mi);

Extended Long-Wavelength Laser (ELWL) up to

80 km (49.6 mi); distance depends on fiber-optic 

cable and port speed, CWDM SFPs (8 lambdas)

Fabric services

Simple Name Server, Registered State Change

Notification (RSCN); Brocade FC-FC Routing 

Service, Brocade Advanced Zoning, and Brocade

Web Tools; optional fabric services include the

Brocade FCIP Tunneling Service and Brocade

Advanced ISL Trunking

options

SFP media

Management

Management software

supported

Telnet; RADIUS; SNMP (FE MIB, FC Management

MIB); Web Tools; Fabric Manager; third-party

applications utilizing the Brocade SMI Agent

Management access

10/100 Ethernet port (RJ-45); serial port

(RS-232); In-band through Management Server

Diagnostics

POST and embedded online/offline diagnostics

BROCADE 4900 sPECiFiCAtiONs

Mechanicals

Enclosure

Non-port side to port side (port side exhaust);

back-to-front airflow; power from rear; 2.0U, 19-in. 

EIA-compliant

Size

Width: 42.87 cm (16.88 in)

height: 8.60 cm (3.39 in)

Depth: 61.0 cm (24.02 in)

System weight

13.7 kg (30.2 lb) — with dual power supply, no SFP

Environmentals

Temperature

operating: 0°C to 40°C (32°F to 104°F)

Non-operating: –25°C to 70°C (–13°F to 158°F)

humidity

operating: 20% to 85% non-condensing at

40°C (104°F); Non-operating: 10% to 85%,

non-condensing at 70° C (158° F)

Altitude

operating: up to 3000 meters (9800 feet)

Storage: up to 12 km (32,200 feet)

Shock

operating: 20G, 6 ms half-sine

Non-operating: 15G, 12 to 18 ms trapezoid

Vibration

operating: 0.5 g sine, 0.4 grms random,

5 to 500 hz; Non-operating: 2.0 g sine, 1.1 grms

random, 5 to 500 hz

Airflow

Maximum airflow 74 CFM; Nominal airflow 54 CFM

Power

Maximum output

300 Watts

System power consumption Nominal system draw 175 Watts
Nominal input voltage

90 to 264 VAC, 47 to 63 hz

Input line frequency

47 to 63 hz

Input voltage

90 VAC minimum, 264 VAC maximum

BTU rating

(80% efficiency)

220 Watts / 0.8 X 3.412 BTU/hr/Watts

= 756 BTU/hr

Inrush current

Maximum of 15 Amps for period between

10 to 150 ms at 50°C (122°F), hot or cold start

safety

The Brocade 4900 complies with the following safety certifications:
• UL 60950-1: 2003, First Edition (Underwriters Laboratories)

• CSA 60950-1-03 (Canadian Standards Association)

• Nemko EN60950:2000

• TUV EN60950:2000 / IEC60950:1999

(TUV “GS” for Germany, TUV “S” for Argentina)

• GoST (Russia)

• Low Voltage Directive (73/23/EEC) for CE Marking in European Union

For information about supported SAN standards, visit

www.brocade.com/sanstandards
For information about switch and device interoperability, visit

www.brocade.com/interoperability