Cable And Connector Specifications For Mx And Ptx Series Devices; 12-Fiber Mpo Connectors - Juniper PTX10003-80C Hardware Manual

Cable and Connector Specifications for MX and PTX Series Devices

IN THIS SECTION

12-Fiber MPO Connectors | 79

24-Fiber MPO Connectors | 83
LC Duplex Connectors | 84
The transceivers that are supported on MX Series and PTX Series devices use fiber-optic cables and
connectors. The type of connector and the type of fiber depends on the transceiver type.
You can determine the type of cable and connector required for your specific transceiver by using the
Hardware Compatibility Tool.
CAUTION: To maintain agency approvals, use only a properly constructed, shielded
cable.
NOTE: The terms multifiber push-on (MPO) and multifiber termination push-on (MTP) describe
the same connector type. The rest of this topic uses MPO to mean MPO or MTP.
12-Fiber MPO Connectors
There are two types of cables used with 12-fiber MPO connectors on Juniper Networks devices—patch
cables with MPO connectors on both ends, and breakout cables with an MPO connector on one end and
four LC duplex connectors on the opposite end. Depending on the application, the cables might use
single-mode fiber (SMF) or multimode fiber (MMF). Juniper Networks sells cables that meet the supported
transceiver requirements, but it is not required to purchase cables from Juniper Networks.
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.
Also, ensure that the fiber end in the connector is finished correctly. Physical contact (PC) refers to fiber
that has been polished flat. Angled physical contact (APC) refers to fiber that has been polished at an angle.
79