Cable Specifications For Qsfp+ And Qsfp28 Transceivers; Table 34: Qsfp+ And Qsfp28 Optical Module Receptacle Pinouts - Juniper QFX10002 Hardware Manual

QFX10002 Switch Hardware Guide

Cable Specifications for QSFP+ and QSFP28 Transceivers

Table 34: QSFP+ and QSFP28 Optical Module Receptacle Pinouts

Fiber
1
2
3
4
74
You can find information about the optical transceivers supported on your Juniper device
by using the Hardware Compatibility Tool. In addition to transceiver and connection type,
the optical and cable characteristics–where applicable–are documented for each
transceiver. The Hardware Compatibility Tool enables you to search by product, displaying
all the transceivers supported on that device, or category, by interface speed or type. The
list of supported transceivers for the QFX10002 is located at the
Tool .
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.
The 40-Gigabit Ethernet QSFP+ and 100-Gigabit Ethernet QSFP28 transceivers that are
used in QFX Series switches use 12-ribbon multimode fiber crossover cables with female
MPO/UPC connectors. The fiber can be either OM3 or OM4. These cables are not sold
by Juniper Networks.
CAUTION: To maintain agency approvals, use only a properly constructed,
shielded cable.
TIP: Ensure that you order cables with the correct polarity. Vendors refer to
these crossover cables as key up to key up, latch up to latch up, Type B, or
Method B. If you are using patch panels between two QSFP+ or QSFP28
transceivers, ensure that the proper polarity is maintained through the cable
plant.
Table 34 on page 74 describes the signals on each fiber.
pin-to-pin connections for proper polarity.
Signal
Tx0 (Transmit)
Tx1 (Transmit)
Tx2 (Transmit)
Tx3 (Transmit)
Hardware Compatibility
Table 35 on page 75 shows the
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