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Technical Specifications

Technical Specifications

This appendix provides technical specifications for the Catalyst 2926 and Catalyst 2926G series switches and for the 10/100-Mbps Fast Ethernet autosensing switched ports.

Catalyst 2926 and Catalyst 2926G series switch specifications are provided in Table A-1.


Table A-1: Specifications for the Catalyst 2926 and Catalyst 2926G Series Switches
Item Specification

Environmental

Temperature, ambient operating

32ºF (0ºC) to 104ºF (40ºC)

Temperature, ambient nonoperating and storage

-40 to 158ºF (-40 to 70ºC)

Humidity (RH), ambient (noncondensing) operating

10% to 90%

Humidity (RH), ambient (noncondensing) nonoperating and storage

5% to 95%

Altitude, operating

Sea level to 10,000 ft (3050 m)

Altitude, nonoperating

Sea level to 40,000 ft (12,200 m)

Switching Components

Backplane

1.2-Gbps, frame-based switching fabric

Microprocessor

25-MHz 68EC040 for the NMP1 (Catalyst 2926 series switch)

150-MHz IDT R4700 RISC processor
(Catalyst 2926G series switch)

Memory

Catalyst 2926 series switch

DRAM: 16 MB

Flash (onboard): 4 MB

NVRAM: 256 KB

Catalyst 2926G series switch

DRAM: 32 MB

Flash (onboard): 4 MB

Flash PC Card: 16 MB or 20 MB

NVRAM: 512 KB

Physical Characteristics

Dimensions (H x W x D)

5.75 x 17 x 18 in. (14.6 x 43.18 x 46.72 cm)

Weight

35 lb (15.9 kg) with 2 power supplies, 24 switched 10/100-Mbps ports, and 1 supervisor engine

Connectors

Catalyst 2926 series supervisor engine

  • RJ-45 IEEE 802.3u 100BaseTX Fast Ethernet

  • MII 100BaseTX Fast Ethernet

  • SC multimode fiber-optic 100BaseFX Fast Ethernet

Catalyst 2926G series supervisor engine

  • SC multimode fiber-optic 1000BaseSX

  • SC multimode or single-mode fiber-optic 1000BaseLX/LH

10/100-Mbps Fast Ethernet ports

RJ-45 IEEE 802.3u Fast Ethernet 10/100BaseTX

AC Power without Power Factor Correction

Power supply output capacity

155W maximum

System power dissipation

155W maximum configuration, 120W typical

System heat dissipation

850 Btus2/hr

AC-input voltage

100 to 240 VAC

AC frequency

50 to 60 Hz

AC-input current

6.0A maximum

Power supply output

+5.15V @ 26A, +12V @ 1.5A, +24V @ 0.1A

AC Power with Power Factor Correction

Power supply output capacity

175W maximum

System power dissipation

155W maximum configuration, 100W typical

System heat dissipation

950 Btus/hr

AC-input voltage

90 to 264 VAC autoranging

AC frequency

47 to 63 Hz

AC-input current

3.0A maximum @ 110 VAC, 1.5A maximum @ 220 VAC

Power supply output

+5.15V @ 30A, +12V @ 1.5A, +24V @ 0.1A

Airflow

300 cfm3 through system fan assembly

Station-to-station cabling distances (maximum)

Catalyst 2926 series switch

Fiber-optic supervisor engine:
MMF4: 1.2 miles (2 km) full duplex, 121 feet
(400 m), half duplex

10/100BaseTX Fast Ethernet: Category 5 UTP5: 328 ft (100 m)

Catalyst 2926G series switch

1000BaseSX Gigabit Ethernet MMF (850 nm wavelength):

  • 62.5-micron core size, 160 MHz-km modal bandwidth, 722 ft. (220 m) cable distance

  • 62.5-micron core size, 200 MHz-km modal bandwidth, 902 ft. (275 m) cable distance

  • 50.0-micron core size, 400 MHz-km modal bandwidth, 1640 ft. (500 m) cable distance

  • 50.0-micron core size, 500 MHz-km modal bandwidth, 1804 ft. (550 m) cable distance

1000BaseLX/LH Gigabit Ethernet MMF6 (1300 nm wavelength):

  • 62.5-micron core size, 500 MHz-km modal bandwidth, 1804 ft. (550 m) cable distance

  • 50.0-micron core size, 400 MHz-km modal bandwidth, 1804 ft. (550 m) cable distance

  • 50.0-micron core size, 500 MHz-km modal bandwidth, 1804 ft. (550 m) cable distance

1000BaseLX/LH Gigabit Ethernet SMF7 (1300-nm wavelength):

  • 9/10-micron core size, 32,810 ft. (10 km) cable distance

Frame processing

Transparent bridging (802.1d)

Network management

SNMP8 agent

Agency approvals

Safety


EMI9

UL10 1950, CSA11 C22.2 No. 950, EN 60950, IEC 950, TS12 001, AS/NZS 3260, CE13 Marking

FCC Class A (47 CFR, Part 15), ICES14-003 Class A, CISPR22 Class A, CE Marking, EN55022 Class A and VCCI Class A, AS/NZS3548 Class A with UTP cables

EN55022 Class B, CISPR22 Class B, AS/NZS 3590 Class B, VCCI15 Class B with STP16 cables

1NMP = Network Management Processor
2Btus = British thermal units
3cfm = cubic feet per minute
4MMF = multimode fiber
5UTP = unshielded twisted-pair
6Patch cord recommended. See the "Connecting the Patch Cord (Catalyst 2926GL Switch Only)" section for details.
7SMF = single-mode fiber
8SNMP = Simple Network Management Protocol
9EMI = electromagnetic interference
10UL = Underwriters Laboratory
11CSA = Canadian Standards Association
12TS = Technical Standard
13CE = Conformite Europeene
14ICES = Interference-Causing Equipment Standard
15VCCI = Voluntary Control Council for Information Technology Equipment
16STP = shielded twisted-pair


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Posted: Thu Jul 1 13:20:06 PDT 1999
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