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AI & Data Centers

Dense Fiber for AI Clusters

AI clusters multiply the fiber in a data hall. One Optics supplies the passive plant they plug into, from the cabinet where the OSP cable lands to the jumper at the node, so the plant grows by adding modules, not re-cabling.

Typical Builds

  • Entrance: FEC-6912 (24 x 288F exit configuration) turns the customer's 6,912F OSP cable into 24 x 288F plenum cables: PTP- plenum preterms, single end terminated.
  • MDA: two HD9U-R-LC-864-NT stacks (pigtails installed, no splice trays) and one HD3US give 1,728 LC ports with remote splicing (also orderable as one part number, HD21U-R-LC-1728).
  • Row: HDS1U-E with four MPC-24-LC-A cassettes and four MPOT-2X12 trunks gives 96 LC in 1U.
6,912FEntrance cabinet
1,296FLC in a 9U stack
288FMPO trunk max
Type A/B/CMPO polarity
Dense fiber for AI clusters

Our rack and wall mount enclosures share one HD module footprint, so LC and SC plates, MTP plates and MPO pass-through cassettes mix in one panel and change as optics change; OOFC splice cassettes fit the HD1U, the HD3U family and HD Slim, and the OOFC-24 also fits the wall mounts. One Optics supplies passive connectivity only: transceivers, switches, servers and DAC/AOC cables are supplied by others. Made in USA applies to our enclosures: HD1U, HD3U (including HD6U and HD9U stacks), HD3US, WMHD2X, WMHD6X and the Fiber Entrance Cabinet (FEC-6912). Build America, Buy America (BABA) compliant, self-certified; compliance letter available on request (excludes fiber jumpers, MPO jumpers, pigtails and Cat 6 copper).

Network Diagram
AI data center network diagram: entrance room, main cross-connect and compute rows with One Optics productsAI data center network diagram: entrance room, main cross-connect and compute rows with One Optics productsOSPCampus / DCIENTRANCE ROOMCarrier demarc, OSP spliceMDASpine / core cross-connectCOMPUTE ROWSLeaf patch field, GPU racks (EDA)6,912F ribbon OSParmored or dielectric(by others)Carrier / DCIfiberFEC-691224 x 288F traysFiber EntranceCabinetWall mount;one 6,912F OSPcable in, splicedto plenum out24 x 288F or48 x 144F plenumMEET-ME RACKHD1UHD1U-[L/R]-HD3U + HD3USHD3U-R- / HD3USCarrier / DCIequipmentMAIN X-CONNECTHD3US1,728F / 3UHD3U stackHD6U- / HD9U-HD3UHD3U-C-LC-432MTP platesHDP-MTP-12MPO cassettesMPC-24-LC-OOFC cassettesOOFC-432 LC per 3U1,296 LC per 9USpineswitchesMPO- jumpersMPOT- trunksup to 288FType A / B / CStorage, in-band andOOB switches (by others)SX- / DX- jumpersROW / LEAF RACKHD Slim 1UHDS1U-EHD1UHD1U-A- / -EMTP platesHDP-MTP-12MPO cassettesMPC-24-LC-LeafswitchesHGX B200 / B3008-GPU nodesGB200 / GB300NVL72 rackMPO- jumpersOOB / BMCswitch (by others)Cat 6 jumpersHDP-RJ45-6Rail-optimized fabrics give each GPU rail its ownleaf. A row-end patch field keeps node-to-leafMPO links short; leaf-to-spine trunks re-patchat the MDA without re-pulling cable.One Optics product (part number family)Customer equipment and optics (by others)Fiber run (One Optics cable)Cat 6 copper
AI data center: OSP enters a FEC-6912 entrance cabinet, HD3U and HD3US panels form the main cross-connect, and HD1U and HD Slim 1U patch fields sit at the end of each GPU row. MPO trunks and jumpers carry leaf-to-spine and node-to-leaf links.
Application Guide

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Free PDF, no sign-up: network diagram, product-fit table, example builds and contacts.

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Splice the OSP in
Entrance Room

Splice the OSP In

The FEC-6912 accepts your armored or dielectric 6,912F OSP entry cable (customer supplied), top or bottom entry, and splices it on 24 trays to 24 x 288F or 48 x 144F plenum cables, cut to length by One Optics.

MPO backbone
Main Distribution

MPO Backbone

Run factory-terminated MPO trunks between rows and land them on HD3U panels: up to 432 LC in 3U with splice cassettes, 1,296 LC in an HD9U stack. NT ribbon builds splice remotely in an HD3US: six HD3U-NT over one HD3US give 1,728 LC, also orderable as one part number, HD21U-R-LC-1728.

Patch at the server cabinet
In the Rack

Patch at the Server Cabinet

The HD1U and the shallow HD Slim 1U take HD adaptor plates (LC, SC, MTP, Cat 6), MPO pass-through cassettes and OOFC splice cassettes. Four MPC-24-LC cassettes give 96 LC ports from eight MTP legs in one rack unit.

Plan a Build for Your Site
Send the fiber counts, connector and polish, and the rooms you need to connect. Sales returns part numbers and a quote.
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