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Direct Connection for 40G QSFP+ SR4/ESR4 Transceiver

How to connect two 40G QSFP+ SR4/ESR4 transceivers directly? Figure 1 shows two QSFP-SR4-40G transceivers connected by a MTP female cable. Two Juniper QSFP+ SR4 modules are separately inserted in two 40G switches. Then the two transceivers are connected by a length of multimode MTP trunk cable. This is the simplest way to connect Juniper QSFP-SR4-40G transceivers to network.

Figure 1

Item NumberID#Description 
1136439 Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m MTP/MPO DOM Transceiver
22439341m (3ft) MTP Female to MTP Female 12 Fibers OM4 50/125 Multimode Trunk Cable, Type B, Elite, LSZH, Aqua
Application Accessories
1126388CLE-BOX Fiber Optic Cassette Cleaner for LC/SC/FC/ST/MU/D4/DIN Connectors (500 cleans)

 
40G QSFP+ SR4/ESR4 Interconnected with MPO/MTP Trunk Cable and Patch Panel

For distances less than 400 meters, when interconnect two Juniper 40G QSFP+ SR4/ESR4 transceivers, a 48-port 1U rack mount MTP fiber patch enclosure can be used as shown in the following figure2, instead of using a 12-fiber jumper directly, the MPO/MTP adapter panel is interconnected.

Figure 2

Item NumberID#Description 
1136439Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m MTP/MPO DOM Transceiver
22 43934 1m (3ft) MTP Female to MTP Female 12 Fibers OM4 50/125 Multimode Trunk Cable, Type B, Elite, LSZH, Aqua
33516071RU Rack Mount HD Fiber Enclosure unloaded, holds up to 4x FAPs Fiber Adapter Panels or 4x HD MPO/MTP Cassettes
3335510Fiber Adapter Panel with 12 MTP(12/24F) Key-up/Key-down Adapters (Black), Horizontal
44680171m (3ft) MTP Female to Female 12 Fibers OM4 50/125 Multimode Trunk Cable, Type B, Elite, Plenum (OFNP), Magenta
55516071RU Rack Mount HD Fiber Enclosure unloaded, holds up to 4x FAPs Fiber Adapter Panels or 4x HD MPO/MTP Cassettes
5535510Fiber Adapter Panel with 12 MTP(12/24F) Key-up/Key-down Adapters (Black), Horizontal
66439341m (3ft) MTP Female to MTP Female 12 Fibers OM4 Multimode Trunk Cable, Type B, Elite, LSZH
7736439Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m MTP/MPO DOM Transceiver

 
40G QSFP+ SR4/ESR4 Interconnected with MPO/MTP Trunk Cable and Patch Panel

For distances less than 400 meters, when interconnect two 40G Juniper QSFP+ SR4/ESR4 transceivers, a 1U 96-fiber enclosure is recommended, which includes four HD MTP cassettes transferring MTP front the 40G end to LC at the 10G end. Four Juniper 10G-SR SFP+ modules, inserted in 10G switch/ports, can be connected to the corresponding LC ports on this fiber enclosure to achieve the duplex transmission between 40G and 10G.

Figure 3

Item NumberID#Description 
1139595Juniper Networks SFPP-10GE-SR Compatible 10GBASE-SR SFP+ 850nm 300m DOM Transceiver
22401801M LC UPC to LC UPC Duplex 2.0mm PVC(OFNR) 10G OM4 Fiber Optic Patch Cable
334351496 fibers 12x MTP/MPO-8 to LC/UPC OM4 1U 40GB QSFP+ Breakout Patch Panel Flat, Polarity A
44439341m (3ft) MTP Female to MTP Female 12 Fibers OM4 50/125 Multimode Trunk Cable, Type B, Elite, LSZH, Aqua
5536439Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150mMTP/MPO DOM Transceiver

 
10Gig Migrate to 40GbE by interconnecting MTP harness cable and MTP Trunk Cable

For higher cabling density, the above mentioned 48-port 1U rack mount MTP fiber patch enclosure is still being recommended, which can provide high density 40G MTP cabling environment. And additional MTP-8LC harness cables should be used for transferring signals between 40G and 10G (shown in the following figure4).

Figure 4

Item NumberID#Description 
1139595 Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m MTP/MPO DOM Transceiver
22680171m (3ft) MTP Female to Female 12 Fibers OM4 50/125 Multimode Trunk Cable, Type B, Elite, Plenum (OFNP), Magenta
33516071RU Rack Mount HD Fiber Enclosure unloaded, holds up to 4x FAPs Fiber Adapter Panels or 4x HD MPO/MTP Cassettes
3352022Fiber Adapter Panel with 8 MTP(12/24F) Key-up/Key-up Adapters (Charcoal Gray), Horizontal
4431097Customized 8-144 Fibers OM4 Multimode 12 Strands MTP Breakout Cable 3.0mm
5536439Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m MTP/MPO DOM Transceiver
Application Accessories
1126388CLE-BOX Fiber Optic Cassette Cleaner for LC/MU/SC/FC/ST/MPO/MTRJ Connector (500 cleans)
22353881mW (5km) FVFL-204 Pen Shape Visual Fault Locator with Standard 2.5mm Universal Adapter

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