Table 23: Sfp+ Passive Direct Attach Copper Cable Specifications - Juniper EX4600 Series Hardware Manual

Table 23: SFP+ Passive Direct Attach Copper Cable Specifications

Product Number
QFX-SFP-DAC-1M
Copyright © 2014, Juniper Networks, Inc.
CAUTION: We highly recommend using Juniper Network DAC cables. You
can use DAC cables purchased from a third party at your own risk. If there is
a problem with the cable or transceiver, support will not be provided. If you
choose to use a third-party cable, it should meet the specifications described
in Table 23 on page 61
EX4600 switches support third-party DAC cables starting with the Junos OS 13.2X51-D25
release.
The cables are hot-removable and hot-insertable. A cable consists of a cable assembly
that connects directly into two SFP+ modules, one at each end of the cable. The cables
use integrated duplex serial data links for bidirectional communication and are designed
for data rates up to 10 Gbps. There are two types of DAC cables:
Passive DAC cables have no signal amplification built into the cable assembly.
Table 23 on page 61 describes the passive DAC cable specifications.
Active DAC cables have signal amplification and equalization built into the cable
assembly. Table 24 on page 63
Specifications
Rate
Connector type
Supply voltage
Power consumption (per end)
Storage temperature
Cable type
Wire AWG
Minimum cable bend radius
Cable characteristic impedance
Crosstalk between pairs
Time delay
Length
Chapter 8: Port and Interface Specifications
and Table 24 on page 63.
describes the active DAC cable specifications.
10-Gbps full-duplex serial transmission
Copper pigtail
3.3 V
0.015 W
°
–40 C to 85
Twinax
30 AWG
1 in. (2.54 cm)
100 ohms
1% maximum
4.3 nsec/m
1 m (3.3 ft)
°
C
61