MPO Fiber Optic
Loopback Assemblies
FEATURES AND SPECIFICATIONS
106005 Multi-Fiber
For compact testing of QSFP optical transceivers or network optical links, Molex’s MPO Loopback
Assemblies offer a new, robust solution for Telecom and Datacom applications
Loopback Assemblies
Loopbacks for MT interconnect applications are driven
by both network systems-solutions providers and
the optical-device community that design and make
transceivers or active components. Loopbacks are used
Molex’s Loopback offers a female MTP-connector
end that mates to any MPO or MTP adapter or
device port. The Loopback also can be mated directly
to a parallel optical device such as a Quad Small
small and compact housing design allows side-by-side
mounting in dense board applications and tight spaces.
This design makes it ideal for blades with multiple
optical components on a face plate.
primarily as a means to test optical links in networks or Form-factor Pluggable (QSFP) transceiver with a
devices by “looping back” the connections from the TX 4-lane configuration. For multimode applications, an
(transmit) pairs to the RX (receive) pairs. By doing this, attenuated version of the MPO Loopback is available
For burn-in and testing of MPO network components,
Molex’s MPO loopback offers a stable and compact
solution for telecom and datacom requirements.
Molex also offers a LC loopback (Series 106052) and
will soon release a CXP loopback assembly. For more
information on Molex’s loopback offerings, visit:
www.molex.com/link/loopbacks.html.
a complete optical link is formed, allowing the optical
performance evaluation of a discrete component or a
complete link in a network path covering one or more
interfaces.
to simulate longer links in a network, with up to 5dB
attenuation. With standard or custom pinouts available
for 8- to 12-fiber MT ferrules, the Loopback can
accommodate specific optical-routing needs. The
Features and Benefits
n Small, compact housing design allows side-by-side
mounting in dense board applications
n Ruggedized enclosed body for easy removal
protects the ribbon fibers when engaged repeatedly
n Available in attenuated versions for multimode
applications offers the ability to simulate network
distances within the device
n Offering pinouts for 8-and 12-fiber MT ferrules or
QSFP transceivers provides a Loopback with pinouts
that is factory ready to mate to components with
appropriate routing
n Identification labels that provide data on return
loss, mode (single or multi) and fiber type provides
quick customer identification of device parameters
for evaluation
SPECIFICATIONS
Reference Information
Mechanical
Packaging: PolyBag with test data
Mates With: MPO or MTP adapter (Series 106181 and
106114) with a male mating connector interface
and any parallel optical device that uses an
MTP/MPO interface
Use With: Any Molex MTP adapter (Series 106181 and
106114) and other manufacturers’ optical
devices
Connector Insertion Force: 10N (2.250 lbf) typical
QSFP fiber-count compliant on part number
106005-1100 4TX, 4RX with 12 channel ferrule
Physical
Housing: PEI, UL94-V0
Connector: Female MPO interface 8 or 12 fiber
Operating Temperature: -5 to +40°C
Rear Housing:
Designed In: Millimeters
Height: 6.80mm (.268”)
Length: 35.60mm (1.402”)
Width: 20.00mm (.787”)
Optical
Insertion Loss:
Single mode: .5dB per fiber
Multimode: .75 dB per fiber