Juniper QFX5100, Руководство по оборудованию

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Table 30: QSFP+ Active DAC Breakout Cable Specifications (continued)
Specifications Product SKU
40-Gbps full-duplex serial transmission Rate JNP-QSFP-DACBO-7MA
Copper pigtail Connector type
3.3 V Supply voltage
–40
°
C to 85
°
C Storage temperature
Twinax Cable type
30 AWG Wire AWG
0.3 in. (0.762 cm)) Minimum cable bend radius
100 ohms Cable characteristic impedance
4.5 nsec/m Time delay
7 m (22.9 ft) Length
Related
Documentation
Interface Specifications for SFP, SFP+, and QSFP+ Transceivers for the QFX Series on
page 61
•
•
Interface Specifications for SFP+ DAC Cables for the QFX Series on page 73
•
Interface Specifications for QSFP+ DAC Cables for the QFX Series on page 82
•
Installing a Transceiver in a QFX Series Device on page 206
•
Removing a Transceiver from a QFX Series Device on page 205
Interface Specifications for QSFP+ DAC Cables for the QFX Series
Quad small form-factor pluggable plus (QSFP+) direct-attach copper (DAC) cables are
suitable for connections between QFX3500, QFX3600, and QFX5100 devices operating
as a standalone switch and QFX3600 Node devices, and between QFX3500 or QFX3600
Node devices and QFX3600-I Interconnect devices. Juniper Networks QSFP+ DAC cables
may also be used in QFX Virtual Chassis and Virtual Chassis Fabric (VCF).
NOTE: The QSFP+ DAC cables consist of a cable assembly terminated with
QSFP+ transceivers on either end. If you use the QSFP+ DAC cable as the
data plane connection between a QFX3600-I and QFX3600 or QFX3500
Node device, the interface is automatically configured to operate at 40 Gbps.
If you use the QSFP+ DAC cable to interconnect a QFX3600 Node device
with another device, the interface is automatically configured to operate as
four 10-Gigabit Ethernet interfaces over one cable.
Copyright © 2014, Juniper Networks, Inc. 82
QFX5100 Switch Hardware Guide