Juniper EX3300 Series User Manual

Table 17: Software Support for SFP+ Direct Attach Cables Listed by Software
Release (continued)
Switch/Line CardCable LengthSoftware Supported Added
EX4500 switches5 mJunos OS for EX Series switches, Release 11.2
EX3300 switches1 m and 7 mJunos OS for EX Series switches, Release 11.3
Table 18 on page 37 describes the cable specifications.
Table 18: SFP+ Direct Attach Cable Specifications
ValueSpecificationModel
10 Gbps full-duplex serial transmissionRateEX-SFP-10GE-DAC-1m
EX-SFP-10GE-DAC-3m
EX-SFP-10GE-DAC-5m
EX-SFP-10GE-DAC-7m
SFP+ passive Twinax cable assemblyConnector type
3.3 VSupply voltage
0.57 WPower consumption (per end)
-40
°
C to 85
°
CStorage temperature
TwinaxCable type
•
30 AWG (1 m and 3 m lengths)
•
24 AWG (5 m and 7 m lengths)
Wire AWG
1 in.Minimum cable bend radius
100 ohmsCable characteristic impedance
2% maximumCrosstalk between pairs
1.31 nsec/ftTime delay
•
EX-SFP-10GE-DAC-1m—1 m (3.3 ft)
•
EX-SFP-10GE-DAC-3m—3 m (9.9 ft)
•
EX-SFP-10GE-DAC-5m—5 m (16.4 ft)
•
EX-SFP-10GE-DAC-7m—7 m (23 ft)
Length
Standards Supported by These Cables
The cables comply with the following standards:
•
SFP mechanical standard SFF-843—see ftp://ftp.seagate.com/sff/SFF-8431.PDF.
•
Electrical interface standard SFF-8432—see ftp://ftp.seagate.com/sff/SFF-8432.PDF.
•
SFP+ Multi-Source Alliance (MSA) standards
37Copyright © 2011, Juniper Networks, Inc.
Chapter 3: Component Specifications

Juniper EX3300 Series Specifications

General

Layer Support	Layer 2 and Layer 3
JUNOS OS	Yes
Ports	24 or 48 x 10/100/1000BASE-T ports
Uplink Ports	4 x 1GbE/10GbE SFP/SFP+ ports
Power Supply	AC or DC options
Stacking	Yes, up to 10 units
MAC Address Table Size	32, 000
Operating Humidity	10% to 90% non-condensing
PoE Support	Available on PoE models
Virtual Chassis	Yes, up to 10 units
Operating Temperature	32° to 104° F (0° to 40° C)