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NOTE:
We recommend that you use only QSFP+ DAC cables purchased from
Juniper Networks with your Juniper Networks device.
CAUTION:
If you face a problem running a Juniper Networks device that uses
a third-party optic or cable, the Juniper Networks Technical Assistance Center
(JTAC) can help you diagnose the source of the problem. Your JTAC engineer
might recommend that you check the third-party optic or cable and potentially
replace it with an equivalent Juniper Networks optic or cable that is qualified
for the device.
describes the cable specifications.
Table 58: QSFP+ Direct Attach Copper Cable Specifications
Value
Specification
Model Number
40-Gbps full-duplex serial transmission
Rate
EX-QSFP-40GE-DAC-50CM
QSFP+ passive Twinax cable assembly
Connector type
3.3 V
Supply voltage
0.015 W
Power consumption (per end)
–40° C through 85° C
Storage temperature
Twinax
Cable type
30 AWG
Wire AWG
2.54 cm (1 in.)
Minimum cable bend radius
100 ohms
Cable characteristic impedance
1% maximum
Crosstalk between pairs
4.3 nsec/ft
Time delay
1.6 ft (0.5 m)
Length
Copyright © 2017, Juniper Networks, Inc.
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