Lc Duplex Connectors; Figure 24: 24-Fiber Mpo Optical Lane Assignments - Juniper PTX1000 Hardware Manual

PTX1000 Packet Transport Router Hardware Guide
58

Figure 24: 24-Fiber MPO Optical Lane Assignments

NOTE: 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 transceivers, ensure
that the proper polarity is maintained through the cable plant.
The MPO optical connector for the CFP2-100G-SR10-D3 is defined in Section 5.6 of the
CFP2 Hardware Specification and Section 88.10.3 of IEEE STD 802.3-2012. These
specifications include the following requirements:
Recommended Option A in IEEE STD 802.3-2012 is required.
The transceiver receptacle is male. A patch cable with female connector is required
to mate with the module.
Ferrule finish shall be flat polished interface that is compliant with IEC 61754-7.
Alignment key is key up.
The optical interface must meet the requirement FT-1435-CORE in Generic Requirements
for Multi-Fiber Optical Connectors. The module must pass wiggle test defined by IEC
62150-3.

LC Duplex Connectors

You can use patch cables with LC duplex connectors to connect two supported
transceivers of the same type—for example, 40GBASE-LR4-to-40GBASE-LR4 or
100GBASE-LR4-to100GBASE-LR4. The patch cable is one fiber pair with two LC duplex
connectors at opposite ends. LC duplex connectors are also used with 12-fiber ribbon
breakout cables, as described in
Duplex Connectors" on page
Figure 25 on page 59 shows an LC duplex connector being installed in a transceiver.
"12-Fiber Ribbon Breakout Cables with MPO-to-LC
56.
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