Juniper EX4550 - Table 55: QSFP+ Direct Attach Cable Specifications

or cable and potentially replace it with an equivalent Juniper Networks optic
or cable that is qualified for the device.
Table 55 on page 116 describes the cable specifications.
Table 55: QSFP+ Direct Attach Cable Specifications
ValueSpecificationModel Number
40-Gbps full-duplex serial transmissionRateEX-QSFP-40GE-DAC-50CM
QSFP+ passive Twinax cable assemblyConnector type
3.3 VSupply voltage
0.015 WPower consumption (per end)
–40
°
C through 85
°
CStorage temperature
TwinaxCable type
30 AWGWire AWG
2.54 cm (1 in.)Minimum cable bend radius
100 ohmsCable characteristic impedance
1% maximumCrosstalk between pairs
4.3 nsec/ftTime delay
0.5 m (1.6 ft)Length
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