Table 24: Cable Pinouts For 12-Fiber Ribbon Breakout Cables; Networks - Juniper PTX1000 Hardware Manual

PTX1000 Packet Transport Router Hardware Guide
56
12-Fiber Ribbon Breakout Cables with MPO-to-LC Duplex Connectors
You can use 12-fiber ribbon breakout cables with MPO-to-LC duplex connectors to
connect a QSFP+ transceiver to four separate SFP+ transceivers—for example,
4x10GBASE-LR-to-10GBASE-LR or 4x10GBASE-SR-to-10GBASE-SR SFP+ transceivers.
The breakout cable is constructed out of a 12-fiber ribbon fiber-optic cable. The ribbon
cable splits from a single cable with a female MPO connector on one end, into four cable
pairs with four LC duplex connectors on the opposite end.
Table 24 on page 56 describes the way the fibers are connected between the MPO and
LC duplex connectors. The cable signals are the same as those described in
Table 22 on page 54.

Table 24: Cable Pinouts for 12-Fiber Ribbon Breakout Cables

MPO Connector Pin
1
2
3
4
5
6
7
8
9
10
11
12
12-Ribbon Patch and Breakout Cables Available from Juniper Networks
Juniper Networks sells 12-ribbon patch and breakout cables with MPO connectors that
meet the requirements described above. It is not required to purchase cables from Juniper

Networks.

Table 25 on page 57
LC Duplex Connector Pin
Tx on LC Duplex 1
Tx on LC Duplex 2
Tx on LC Duplex 3
Tx on LC Duplex 4
Unused
Unused
Unused
Unused
Rx on LC Duplex 4
Rx on LC Duplex 3
Rx on LC Duplex 2
Rx on LC Duplex 1
describes the available cables.
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