Juniper EX4550 - Standards Supported by These Cables; QSFP+ Direct Attach Cables for EX Series Switches

Table 53: SFP+ Direct Attach Cable Specifications (continued)
ValueSpecificationModel Number
10-Gbps full-duplex serial transmissionRateEX-SFP-10GE-DAC-7M
SFP+ passive Twinax cable assemblyConnector type
3.3 VSupply voltage
0.57 WPower consumption (per end)
–40
°
C through 85
°
CStorage temperature
TwinaxCable type
24 AWGWire AWG
1 in. (2.54 cm)Minimum cable bend radius
100 ohmsCable characteristic impedance
2% maximumCrosstalk between pairs
1.31 nsec/ftTime delay
23 ft (7 m)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.
Related
Documentation
Pluggable Transceivers Supported on EX Series Switches•
• Installing a Transceiver in an EX Series Switch on page 215
• Removing a Transceiver from a Switch on page 217
QSFP+ Direct Attach Cables for EX Series Switches
Quad small form-factor pluggable plus (QSFP+) direct attach copper cables are suitable
for in-rack connections between QSFP+ ports of EX Series switches. They are suitable
for short distances of up to 16.4 ft (5 m), making them ideal for highly cost-effective
networking connectivity within a rack and between adjacent racks. See
Figure 34 on page 115.
Copyright © 2015, Juniper Networks, Inc.114
EX4550 Switch Hardware Guide