Table 29 on page 63 describes the way the bers are connected between the MPO and LC duplex
connectors. The cable signals are the same as those described in Table 27 on page 60.
Table 29: Cable Pinouts for 12-Fiber Ribbon Breakout Cables
MPO Connector Pin LC Duplex Connector Pin
1 Tx on LC Duplex 1
2 Tx on LC Duplex 2
3 Tx on LC Duplex 3
4 Tx on LC Duplex 4
5 Unused
6 Unused
7 Unused
8 Unused
9 Rx on LC Duplex 4
10 Rx on LC Duplex 3
11 Rx on LC Duplex 2
12 Rx on LC Duplex 1
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 30 on
page 64 describes the available cables.
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