Table Of Contents

SLB Switch Specifications

SLB Switch Specifications

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Table A-1 describes the specifications for the Catalyst 4840G SLB switch.

Table A-1 Catalyst 4840G SLB Switch Specifications 

Specification	Description
Environmental
Temperature, ambient operating	32 to 104°F (0 to 40°C)
Temperature, ambient nonoperating and storage	-4 to 149°F (-20 to 65°C)
Humidity (RH), ambient (noncondensing) operating	10 to 90 percent
Humidity (RH), ambient (noncondensing) nonoperating and storage	5 to 95 percent
Altitude, operating and nonoperating	-60 to 2000 m
Switching Components
Backplane	22-Gbps full duplex
Microprocessor	150-MHz R5000 RISC-Y2K compliant
CPU card memory	2 Kb of serial EEPROM 64 MB of SDRAM 16 MB of Flash onboard 128 KB of NVRAM 256 KB of boot ROM
SLB card memory	128 MB of DRAM 256 KB of boot ROM 128 KB of NVRAM 2 Kb of serial EEPROM
Flash PC card memory	No Flash memory (Flash PC) card installed by default. Catalyst 4840G accepts 8-, 16-, or 32-MB Type II Flash PC cards
Data Memory	12 MB synchronous SRAM
Physical Characteristics
Dimensions (H x W x D)	3.46 x 17.5 x 18.77 in. (8.8 x 44 x 47.7cm), 2 RUs1 in height
Weight	22 lb (9.9 kg)
AC Power
Power supply output	300W
System power dissipation	350W
AC current	4A maximum @ 100 VAC 2A maximum @ 240 VAC
AC frequency	50 to 60 Hz
KVA rating2	0.350 KVA
Airflow	Front, right, and left side in, rear out
External Power Supply	WS-C4840-PSRACK-PS
Fuse (F1) rating	20A, 250Vac, fast acting
Standards Compliance
Compliance	CE Mark
Safety	UL 19503 , CSA-C22.2 No. 9504 , EN 609505 , IEC 9506 , IEC 60825, EN 60825, 21 CFR 10407
EMI8	FCC Class A (CFR 47, part 15)9 , ICES-003 Class A10 , EN55022 Class A, CISPR2211 Class A, AS/NZS 354812 Class A, and VCCI13 Class A with UTP14 cables EN55022 Class B, CISPR22 Class B, AS/NZS 3548 Class B, and VCCI Class B with FTP cables

1 RU = rack unit 2 KVA = kilo-volt-amperes 3 UL = Underwriters Laboratories 4 CSA = Canadian Standards Association 5 EN = European Norm 6 IEC = International Electrotechnical Commission 7 CFR = Code of Federal Regulations 8 EMI = electromagnetic interference 9 FCC = Federal Communications Commission 10 ICES = International Commerce Exchange Systems 11 CISPR = Comite Internations Special Des Perturbations Radioelectrigues 12 AS/NZS = Australia/New Zealand Standards 13 VCCI = Voluntary Control Council for Information Technology Equipment 14 UTP = unshielded twisted-pair 14