40-Gigabit Fiber Optic Cables Small Form-Factor Pluggables (SFP/SFP+/QSFP+)
page 1-6 OmniSwitch AOS Release 8 Transceivers Guide January 2017
40-Gigabit Fiber Optic Cables
QSFP to QSFP 40G Fiber Optic Cable
To directly connect two Omniswitches with a 40G transceiver, an MPO trunk cable can be used. The cable
can have 8 or 12 fibers, however, the 40G standard only uses 8 fibers. The cable should be a Type-B cross-
over cable. This type of cable should be used with the QSFP-40G-SR transceiver.
Example Type B - MPO Cable Connection
QSFP to SFP+ Splitter Fiber Optic Cable
To connect a 40G transceiver to four 10G transceivers an MTP-LC splitter cable can be used. The MPO-
LC cable has eight fibers that connect the 40G MPO connector to four 10G LC connectors. This type of
cable should be used with the QSFP-4X10G-SR
transceiver. The LC connectors can be manually
rearranged to meet the necessary transmit/receive requirements.
Example MPO/LC Splitter Cable
Fiber12345-89101112
Type A
MPO1 Tx1 Tx2 Tx3 Tx4 N/A Rx4 Rx3 Rx2 Rx1
MPO2 Rx1 Rx2 Rx3 Rx4 N/A Tx4 Tx3 Tx2 Tx1
Fiber12345-89101112
Type B
Fiber12345-89101112
MPO1 Rx1 Rx2 Rx3 Rx4 N/A Tx4 Tx3 Tx2 Tx1
MPO2 Tx1 Tx2 Tx3 Tx4 N/A Rx4 Rx3 Rx2 Rx1
Fiber12111095-84321
LC/SFP4
LC/SFP2
LC/SFP3
LC/SFP1
MPO
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