PROJECT TOTAL · 1 group(s)Both ends + all independent routes
Optical modules • purchase10696 active + 10 stock
Installed fiber strands720384 fibers carrying traffic
Patch panels10Both ends • includes growth
Passive rack space20 U10 × 1U managers included
DC-01 ↔ DC-02
Selected group’s optics, connection layout and channel checks.
SELECTED OPTICAL PROFILE
100GBASE-SR4
QSFP-100G-SR4-S
4 × 25G NRZ parallel · 850 nm
QSFP28OM4MPO-12 UPC
Maximum channel reach100 m
Calculated channel72 m
Active fibers / parent optic8 strands
Physical fibers / cable group12 strands
Automatic selection considers reach, verified loss budget and shortest adequate reach; it is not a price ranking.
FEC: Verify the exact SKU and host mode
Not interchangeable with 100G SR1: optical lane modulation differs.
End-to-end connection
One route shown · Click for detailsEndpoint patch cords: A 48 × 3 m + B 48 × 3 m. Panels and backbone include 25% growth.
Reach check
Actual route60 m
Backbone / cord incl. slack66 m
Endpoint cord contribution6 m
Total / maximum channel72 m / 100 m
Reach budget used: %72
Worst fiber path • loss
Fiber attenuation0.252 dB
4 mated pairs + 0 splices1 dB
Channel loss + margin1.252 + 0.3 dB
Required / available budget1.552 / 1.9 dB
ESTIMATED LOSS PASSES · Headroom: 0.348 dB
Specify MPO geometry, APC/UPC, pinned/unpinned ends and end-to-end Tx/Rx polarity together. Do not directly mate APC and UPC ends.
Alternatives at the same speed
Reach + loss assessment| Optical profile | Fiber | Reach | Active fibers | Check | |
|---|---|---|---|---|---|
| 100GBASE-SR4QSFP28 · MPO-12 UPC | OM4 | 100 m | 8 | Reach + loss pass | |
| 100GBASE-SR4QSFP28 · MPO-12 UPC | OM5 | 100 m | 8 | Reach + loss pass | |
| 100GBASE-DRQSFP28 · LC duplex UPC | OS2 | 500 m | 2 | Reach + loss pass | |
| 100G CWDM4 MSAQSFP28 · LC duplex UPC | OS2 | 2 km | 2 | Reach + loss pass | |
| 100GBASE-LR4QSFP28 · LC duplex UPC | OS2 | 10 km | 2 | Reach + loss pass | |
| 100GBASE-SR1QSFP28 · LC duplex UPC | OM4 | 100 m | 2 | Reach passes · budget unknown | |
| 100GBASE-SR1QSFP28 · LC duplex UPC | OM5 | 100 m | 2 | Reach passes · budget unknown | |
| 100G PSM4 MSAQSFP28 · MPO-12 APC | OS2 | 500 m | 8 | Reach passes · budget unknown | |
| 100GBASE-FR1QSFP28 · LC duplex UPC | OS2 | 2 km | 2 | Reach passes · budget unknown | |
| 100GBASE-LR1QSFP28 · LC duplex UPC | OS2 | 10 km | 2 | Reach passes · budget unknown | |
| 100G ER4-LiteQSFP28 · LC duplex UPC | OS2 | 40 km | 2 | Engineering checks required | |
| 100G ZR4 80 km (vendor profile)QSFP28 · LC duplex UPC | OS2 | 80 km | 2 | Engineering checks required | |
| 100GBASE-SR4QSFP28 · MPO-12 UPC | OM3 | 70 m | 8 | Reach outside limits | |
| 100GBASE-SR1QSFP28 · LC duplex UPC | OM3 | 70 m | 2 | Reach outside limits |
Manufacturer datasheet ↗ · Verify exact part number, FEC, port mode and software support in the host compatibility matrix.
Patch panels & fiber infrastructure
This section shows one route of the selected group. Each endpoint is sized separately.
End A · MPO10U
P1
12
P2
12
P3
12
P4
12
P5
12
5 × 1U cable manager
ActiveReservedFree
Panels to install5 × 1U
Active / allocated connections48 / 60
Panel capacity / unallocated60 / 0
Passive rack space10U
End B · MPO10U
P1
12
P2
12
P3
12
P4
12
P5
12
5 × 1U cable manager
ActiveReservedFree
Panels to install5 × 1U
Active / allocated connections48 / 60
Panel capacity / unallocated60 / 0
Passive rack space10U
Fiber & termination quantities
One route · Both endsActive links / future capacity48 / 60
Fibers carrying traffic384
Strands allocated to planned links480
Installed physical strands720
Unallocated physical strands240
Endpoint patch cords / direct cords96 / 0
Backbone cable count60
Each backbone cable12F · OM4 · 66 m
Total backbone cable length3.96 km
Pigtails / fusion splices0 / 0
24-fiber splice trays • A + B0 + 0
Breakout cassettes0
Each parent uses 8 active and 12 physical strands. MPO-12 base-12 describes population; MPO-16 remains 16-strand.
Route & cable tray
One independent route · Geometric preplanningPhysical cables carried60 × Ø5 mm
Total cable cross-section1,178.1 mm²
Tray internal dimensions100 × 50 mm
Fill / design target%23.6 / %40
Minimum internal width for target58.9 mm
Preliminary tray width in 50 mm steps100 × 50 mm
Alternative conduit minimum internal diameter61.2 mm
Single-route length60 m
All independent routes60 m
Tray sizing covers this group’s equal-diameter cables. Add other groups/existing cables sharing the tray. Validate actual diameter, pulling heads, bend radius, mechanical load and local fire requirements against the selected products.
Project bill of materials
All groups and independent routes. Installed quantities and inventory spares are separate.
Panels, adapters and backbone include growth capacity. Optics and endpoint cords cover active links; future growth optics are not included.
| Item / specification | Unit | Install | Stock spare | Purchase |
|---|---|---|---|---|
| 1. DC-01 ↔ DC-02 · 100G · 1 route(s) | ||||
| Optical module • End AQSFP-100G-SR4-S · 100GBASE-SR4 | pcs | 48 | 5 | 53 |
| Optical module • End BQSFP-100G-SR4-S · 100GBASE-SR4 | pcs | 48 | 5 | 53 |
| Unloaded panel chassis • End A1U · 12 MPO | pcs | 5 | 0 | 5 |
| Unloaded panel chassis • End B1U · 12 MPO | pcs | 5 | 0 | 5 |
| Panel adapters • End AMPO-12 UPC | pcs | 60 | 0 | 60 |
| Panel adapters • End BMPO-12 UPC | pcs | 60 | 0 | 60 |
| Device patch cord • End AOM4 · MPO-12 UPC ↔ MPO-12 UPC · 3 m | pcs | 48 | 5 | 53 |
| Device patch cord • End BOM4 · MPO-12 UPC · 3 m | pcs | 48 | 5 | 53 |
| Backbone fiber cable12F OM4 · 66 m / cable · MPO-12 UPC | pcs | 60 | 0 | 60 |
| 1U horizontal cable managerBoth endpoints combined | pcs | 10 | 0 | 10 |
Infrastructure by group
| Group | Links | Optics + spares | Panels | Passive space | Backbone cable length |
|---|---|---|---|---|---|
| DC-01 ↔ DC-02 | 48 | 96 + 10 | 10 | 20U | 3.96 km |
Each group and route has dedicated panels and paths. Shared panels in the same cabinet require separate consolidation. Tray route lengths and geometry are under Panels & infrastructure; brackets, joints and support spacing require a site survey.
Optics & fiber catalog
1G–1.6T Ethernet • 43 vendor examples. Profile links open datasheets; 1.6T options are marked as new generation.
OM3
50/125 µm · MM
2.000 MHz·km @ 850 nm
Typical jacket: aqua
OM4
50/125 µm · MM
4.700 MHz·km @ 850 nm
Aqua / violet
OM5
50/125 µm · MM
4.700 @850 / 2.470 @953
Wideband • lime green
OS2
~9/125 µm · SM
1310 / 1550 nm
Typical jacket: yellow
Jacket color alone does not identify the fiber class. OM5 reach benefits depend on the optic. MTP is a branded MPO implementation. Fiber characteristics ↗
| Profile / form factor | Fiber & reach | Connector | Active fibers | Optical technology | Channel IL |
|---|---|---|---|---|---|
| 1000BASE-SX ↗SFP · GLC-SX-MMD1 km is the cited Cisco laser-optimized MMF capability; do not present as universal SX standard reach. | OM3 1 km OM4 1 km OM5 1 km | LC duplex UPC | 2 | NRZ850 nm | 5 dB |
| 1000BASE-LX/LH ↗SFP · GLC-LH-SMDVendor LX/LH 10 km profile; generic IEEE LX is 5 km. Minimum cited Cisco length 2 m. | OS2 10 km | LC duplex UPC | 2 | NRZ1310 nm | 6 dB |
| 1000BASE-BX10 U/D pair ↗SFP · GLC-BX-U + GLC-BX-DOne U and one D are required. The pair uses the lower of the 5.5 dB and 6 dB directional channel limits. Minimum channel length is 2 m. | OS2 10 km | LC simplex UPC | 1 | BiDi NRZ1310 / 1490 nm complementary pair | 5.5 dB |
| 10GBASE-SR ↗SFP+ · SFP-10G-SROnly OM3 2.6 dB budget verified in cited Corning engineering note. | OM3 300 m OM4 400 m OM5 400 m | LC duplex UPC | 2 | NRZ850 nm | OM3 2.6 dB OM4 ? OM5 ? |
| 10GBASE-LR ↗SFP+ · SFP-10G-LR | OS2 10 km | LC duplex UPC | 2 | NRZ1310 nm | Unverified |
| 10GBASE-ER ↗SFP+ · SFP-10G-EREngineered link; check minimum attenuation and receiver overload, including short-link attenuator requirement. | OS2 40 km | LC duplex UPC | 2 | NRZ1550 nm | Unverified |
| 10G ZR 80 km (vendor profile) ↗SFP+ · SFP-10G-ZRVendor 80 km reach. Attenuator requirements vary with distance; verify receiver overload and measured loss. | OS2 80 km | LC duplex UPC | 2 | NRZ1550 nm | Unverified |
| 25GBASE-SR ↗SFP28 · SFP-25G-SR-S | OM3 70 m OM4 100 m OM5 100 m | LC duplex UPC | 2 | NRZ850 nm | Unverified |
| 25GBASE-LR ↗SFP28 · SFP-10/25G-LR-S | OS2 10 km | LC duplex UPC | 2 | NRZ1310 nm | Unverified |
| 25G CSR (vendor extended MMF) ↗SFP28 · SFP-10/25G-CSR-SVendor-specific extended reach depending on fiber quality, not generic 25GBASE-SR. | OM3 300 m OM4 400 m OM5 400 m | LC duplex UPC | 2 | NRZ850 nm | Unverified |
| 25GBASE-ER ↗SFP28 · SFP-25G-ER-IBeyond 30 km this is an engineered link. Check minimum attenuation and receiver overload at short reach. | OS2 40 km | LC duplex UPC | 2 | NRZ1310 nm | Unverified |
| 40GBASE-SR4 ↗QSFP+ · QSFP-40G-SR4 | OM3 100 m OM4 150 m OM5 150 m | MPO-12 UPC | 88/12 physical | 4 × 10G NRZ parallel850 nm | Unverified |
| 40GBASE-LR4 ↗QSFP+ · QSFP-40G-LR4No passive 4 × 10G breakout from the duplex LC WDM optic. | OS2 10 km | LC duplex UPC | 2 | WDM NRZ4 wavelengths near 1310 nm | Unverified |
| 50GBASE-SR ↗SFP56 · SFP-50G-SR-S | OM3 70 m OM4 100 m OM5 100 m | LC duplex UPC | 2 | PAM4850 nm | 1.9 dB |
| 50GBASE-LR ↗SFP56 · SFP-50G-LR-SUse 10 km catalog reach; beyond is an engineered vendor-specific link. | OS2 10 km | LC duplex UPC | 2 | PAM41310 nm | 8 dB |
| 100GBASE-SR4 ↗QSFP28 · QSFP-100G-SR4-SNot interchangeable with 100G SR1: optical lane modulation differs. | OM3 70 m OM4 100 m OM5 100 m | MPO-12 UPC | 88/12 physical | 4 × 25G NRZ parallel850 nm | OM3 1.8 dB OM4 1.9 dB OM5 1.9 dB |
| 100GBASE-SR1 ↗QSFP28 · QSFP-100G-SR-S | OM3 70 m OM4 100 m OM5 100 m | LC duplex UPC | 2 | 1 × 100G PAM4850 nm | Unverified |
| 100GBASE-DR ↗QSFP28 · QSFP-100G-DR-S | OS2 500 m | LC duplex UPC | 2 | 1 × 100G PAM41310 nm | 3 dB |
| 100GBASE-FR1 ↗QSFP28 · QSFP-100G-FR-SNot optically interchangeable with 100G CWDM4 despite same LC and reach. | OS2 2 km | LC duplex UPC | 2 | 1 × 100G PAM41310 nm | Unverified |
| 100G CWDM4 MSA ↗QSFP28 · QSFP-100G-CWDM4-SCannot passively break out into four ordinary 25G LC ports. | OS2 2 km | LC duplex UPC | 2 | 4 × 25G NRZ WDM1271 / 1291 / 1311 / 1331 nm | 5 dB |
| 100GBASE-LR4 ↗QSFP28 · QSFP-100G-LR4-S | OS2 10 km | LC duplex UPC | 2 | 4 × 25G NRZ LAN-WDM1295 / 1300 / 1304 / 1309 nm | 6.3 dB |
| 100GBASE-LR1 ↗QSFP28 · QSFP-100G-LR-SLR1 and LR4 are different optical interfaces. | OS2 10 km | LC duplex UPC | 2 | 1 × 100G PAM41310 nm | Unverified |
| 100G PSM4 MSA ↗QSFP28 · QSFP-100G-PSM4-S | OS2 500 m | MPO-12 APC | 88/12 physical | 4 × 25G NRZ parallel1310 nm | Unverified |
| 100G ER4-Lite ↗QSFP28 · QSFP-100G-ER4L-SEngineered link; verify loss and receiver overload. Not generic ER4 standard compliance at every distance. | OS2 40 km | LC duplex UPC | 2 | 4 × 25G NRZ LAN-WDM1295 / 1300 / 1304 / 1309 nm | Unverified |
| 100G ZR4 80 km (vendor profile) ↗QSFP28 · QSFP-100G-ZR4-S80 km depends on measured fiber/connector loss; engineered link and receiver-overload verification required. Not coherent ZR. | OS2 80 km | LC duplex UPC | 2 | 4 × 25G NRZ LAN-WDM1295 / 1300 / 1304 / 1309 nm | Unverified |
| 200GBASE-SR4 ↗QSFP56 · QSFP-200G-SR4-S | OM3 70 m OM4 100 m OM5 100 m | MPO-12 UPC | 88/12 physical | 4 × 50G PAM4 parallel850 nm | 1.9 dB |
| 200GBASE-FR4 ↗QSFP56 · QSFP-200G-FR4-S | OS2 2 km | LC duplex UPC | 2 | 4 × 50G PAM4 WDM1270 / 1290 / 1310 / 1330 nm | 4 dB |
| 400GBASE-SR8 ↗QSFP-DD · QDD-400G-SR8-S | OM3 70 m OM4 100 m OM5 100 m | MPO-16 APC | 16 | 8 × 50G PAM4 parallel850 nm | 1.9 dB |
| 400GBASE-SR4.2 ↗QSFP-DD · QDD-400G-SR4.2-BD | OM3 70 m OM4 100 m OM5 150 m | MPO-12 UPC | 88/12 physical | Bidirectional dual-wavelength 50G PAM4855 / 908 nm | 1.9 dB |
| 400GBASE-VR4 ↗QSFP112 · QSFP-400G-VR4This exact Cisco QSFP112 data sheet lists 50 m for OM3/OM4/OM5; other VR4 vendors may have 30 m OM3. | OM3 50 m OM4 50 m OM5 50 m | MPO-12 APC | 88/12 physical | 4 × 100G PAM4 parallel850 nm | 1.9 dB |
| 400GBASE-DR4 ↗QSFP112 · QSFP-400G-DR4 | OS2 500 m | MPO-12 APC | 88/12 physical | 4 × 100G PAM4 parallel1310 nm | 3 dB |
| 400GBASE-FR4 ↗QSFP112 · QSFP-400G-FR4Also available as QSFP-DD/OSFP variants; electrical form factor compatibility is independent of optical FR4 interoperability. | OS2 2 km | LC duplex UPC | 2 | 4 × 100G PAM4 WDM1270 / 1290 / 1310 / 1330 nm | 4 dB |
| 400G LR4 10 km (vendor profile) ↗QSFP-DD · QDD-400G-LR4-SIEEE 400GBASE-LR4-6 baseline reach is 6 km; this Cisco profile supports 10 km with stated loss budget. | OS2 10 km | LC duplex UPC | 2 | 4 × 100G PAM4 WDM4 wavelengths near 1310 nm | 6.3 dB |
| 800GBASE-VR8 ↗QSFP-DD800 · QDD-800G-VR8 | OM3 30 m OM4 50 m OM5 50 m | 2 × MPO-12 APC | 1616/24 physical | 8 × 100G PAM4 parallel850 nm | OM3 1.6 dB OM4 1.7 dB OM5 1.7 dB |
| 800GBASE-DR8-2 / 8 × 100G FR1 ↗QSFP-DD800 · QDD-8X100G-FR | OS2 2 km | 2 × MPO-12 APC | 1616/24 physical | 8 × 100G PAM4 parallel1310 nm | 4 dB |
| 2 × 400GBASE-FR4 (800G aggregate) ↗QSFP-DD800 · QDD-2X400G-FR4Two 400G optical interfaces in one module; do not assume a native single 800G optical interface on every host. | OS2 2 km | 2 × LC duplex UPC | 4 | 2 engines, each 4 × 100G PAM4 WDM1270 / 1290 / 1310 / 1330 nm | 4 dB |
| NVIDIA twin-port 2 × 400G DR4 ↗Twin-port OSFP · MMS4X00-NM500 m specification assumes two optical patch panels. Finned versus flat-top mechanical variant depends on host. Data sheet does not explicitly publish maximum channel IL; do not derive it by subtracting average Tx/Rx powers. | OS2 500 m | 2 × MPO-12 APC | 1616/24 physical | 2 × 4 lanes of 100G PAM41310 nm | Unverified |
| 800G SR8 · 100 m (JPC) ↗OSFP · JPC OSFP-IHS SR8This vendor profile specifies 100 m on OM4/OM5. It is distinct from 50 m VR8 and from other vendor SR8 reach limits. | OM4 100 m OM5 100 m | MPO-16 APC | 16 | 8 × 100G PAM4 parallel850 nm | Unverified |
| 800GBASE-DR8 · MPO-16 ↗OSFP · OSFP-800G-DR8P | OS2 500 m | MPO-16 APC | 16 | 8 × 100G PAM4 parallel1310 nm | 3 dB |
| 800GBASE-DR8 · 2 × MPO-12 ↗OSFP · OSFP-800G-DR8 | OS2 500 m | 2 × MPO-12 APC | 1616/24 physical | 8 × 100G PAM4 parallel1310 nm | 3 dB |
| 1.6T DR8 FRO · MPO-16 ↗OSFP · 200G/lane · OP13PI8-005D-4(R)New generation / qualifyNew-generation vendor profile. 200G optical lanes do not match 100G lanes of 800G DR8. Confirm connector polish, host, FEC and optical interoperability for the ordered SKU. | OS2 500 m | MPO-16 | 16 | 8 × 200G PAM4 · retimed1310 nm | Unverified |
| 1.6T 2 × DR4 FRO ↗OSFP · 200G/lane · OP13PI8-005D-3(R)New generation / qualifyNew-generation vendor profile. 200G optical lanes do not match 100G lanes of 800G DR8. Confirm connector polish, host, FEC and optical interoperability for the ordered SKU. | OS2 500 m | 2 × MPO-12 | 1616/24 physical | 2 × (4 × 200G PAM4) · retimed1310 nm | Unverified |
| 1.6T 2 × FR4 · 2 km ↗OSFP · 200G/lane · OP27PI8-02DNew generation / qualifyDraft 1.0 vendor datasheet. Two 800G WDM engines, 200G optical lanes. This is not the 800G aggregate 2 × 400G FR4 profile. Final specifications, connector polish and host qualification must be confirmed. | OS2 2 km | 2 × LC duplex | 4 | 2 × (4 × 200G PAM4 WDM) · retimed1271 / 1291 / 1311 / 1331 nm | Unverified |
This catalog describes specific vendor examples. QSFP-DD, QSFP112 and OSFP are not electrically or mechanically interchangeable. Select FEC, breakout mode and heatsink type using the actual host compatibility list.
Fiber & Optics Sizer v0.4
30 October 2026
DC-01 ↔ DC-02
100G · OM4 · Patch panels + backbone
Links / route: 48 · Routes: 1 · Channel: 72 m
Profile: 100GBASE-SR4 (QSFP-100G-SR4-S)
Modules: active / stock / purchase: 96 / 10 / 106
Panels / passive U: 10 / 20U
Loss + margin / budget: 1.552 / 1.9 dB
Reach / loss check: OK / OK
PROJECT TOTAL
Optical module purchase: 106 · Panels: 10 · 20U
30 October 2026
DC-01 ↔ DC-02
100G · OM4 · Patch panels + backbone
Links / route: 48 · Routes: 1 · Channel: 72 m
Profile: 100GBASE-SR4 (QSFP-100G-SR4-S)
Modules: active / stock / purchase: 96 / 10 / 106
Panels / passive U: 10 / 20U
Loss + margin / budget: 1.552 / 1.9 dB
Reach / loss check: OK / OK
PROJECT TOTAL
Optical module purchase: 106 · Panels: 10 · 20U
Calculations update live. Hover over ?; click to pin the explanation.