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SFP+ Direct Attach Copper Cables for EX Series Switches
Small form-factor pluggable plus transceiver (SFP+) direct attach copper (DAC) cables,
also known as Twinax cables, are suitable for in-rack connections between servers and
switches. They are suitable for short distances of up to 23 ft (7 m), making them ideal
for highly cost-effective networking connectivity within a rack and between adjacent
racks. See
Figure 22 on page 111 .
Figure 22: SFP+ Direct Attach Copper Cables for EX Series Switches
This topic describes:
•
Cable Specifications on page 111
•
Standards Supported by These Cables on page 115
Cable Specifications
EX Series switches support SFP+ passive DAC cables. The passive Twinax cable is a
straight cable with no active electronic components. EX Series switches support 1 m,
3 m, 5 m, and 7 m long SFP+ passive DAC cables. For the full specifications of these
cables, see
The Hardware Compatibility Tool
.
Table 44 on page 111 describes the support for SFP+ passive DAC cable lengths on
EX Series switches for Junos OS releases.
Table 44: Software Support for SFP+ Passive Direct Attach Copper Cables for EX Series Switches
Cable Length Software Support Added Switch
3 ft (1 m), 10 ft (3 m), and 16 ft (5 m) Junos OS Release 15.1X53-D50 EX2300 switches
3 ft (1 m), 10 ft (3 m), 16 ft (5 m), and 23 ft (7 m) Junos OS Release 10.3 EX3200 switches
3 ft (1 m), 10 ft (3 m), 16 ft (5 m), and 23 ft (7 m) Junos OS Release 11.3 EX3300 switches
3 ft (1 m), 10 ft (3 m), 16 ft (5 m), and 23 ft (7 m) Junos OS Release 15.1X53-D50 EX3400 switches
3 ft (1 m), 10 ft (3 m), 16 ft (5 m), and 23 ft (7 m) Junos OS Release 10.3 EX4200-24T,
EX4200-24T-DC,
EX4200-24P,
EX4200-24PX,
EX4200-24F,
EX4200-24F-DC,
EX4200-48T,
EX4200-48T-DC,
EX4200-48P, and
EX4200-48PX switches
111 Copyright © 2016, Juniper Networks, Inc.
Chapter 8: Transceiver and Cable Specifications