Data center fiber one-line diagram — OSP to server
Single-line diagram of dual-fabric fiber infrastructure from carrier hand-off through entrance rooms, MDA, HDA, EDA, to server NICs, per ANSI/TIA-942-B.
Legend
OS2 single-mode (yellow)
OM4 multimode (aqua)
Optional/ZDA path
Panel / frame
Switch / active
Outside plant (OSP) / carrier networks
Internet transit · Dark fiber · MPLS WAN · Campus backbone
OS2 24F Base-12
MPO trunk / pigtail splice
Entrance Room A (ER-A)
Diverse path — physically separate
MPO 96F fixed panel
OS2 × 2
1U 144F sliding panel
OS2
fiberopticom.com ER panels
Entrance Room B (ER-B)
Diverse path — physically separate
MPO 96F fixed panel
OS2 × 2
1U 144F sliding panel
OS2
fiberopticom.com ER panels
OS2 Base-12 MPO trunk
12F · MTP-F · Type B · 15–50 m
Fabric A — overhead ladder rack (E)
Fabric B — under-floor conduit (W)
MDA rack — Fabric A
4U 576F MPO enclosure
OS2
4U 576F MPO enclosure
OM4
1U 144F sliding panel × 2
OS2
Core Switch A
fiberopticom.com MDA frames
MDA rack — Fabric B
4U 576F MPO enclosure
OS2
4U 576F MPO enclosure
OM4
1U 144F sliding panel × 2
OS2
Core Switch B
fiberopticom.com MDA frames
OM4 Base-24 MPO trunk
24F · MTP-F · Type B · 5–30 m
Fabric A: overhead E-side
Fabric B: under-floor W-side
HDA racks — 5 per fabric (10 total) · rows 1–10
Fabric A (left column) + Fabric B (right column) per HDA rack
HDA-1 (rows 1-2)
1U 144F panel — Fab A
1U 144F panel — Fab B
MPO→LC cassette OM4 Type B
Agg Sw A + Agg Sw B
HDA-2 (rows 3-4)
1U 144F panel — Fab A
1U 144F panel — Fab B
MPO→LC cassette OM4 Type B
Agg Sw A + Agg Sw B
HDA-3 (rows 5-6)
1U 144F panel — Fab A
1U 144F panel — Fab B
MPO→LC cassette OM4 Type B
Agg Sw A + Agg Sw B
HDA-4 (rows 7-8)
1U 144F panel — Fab A
1U 144F panel — Fab B
MPO→LC cassette OM4 Type B
Agg Sw A + Agg Sw B
HDA-5 (rows 9-10)
1U 144F panel — Fab A
1U 144F panel — Fab B
MPO→LC cassette OM4 Type B
Agg Sw A + Agg Sw B
OM4 Base-8 MPO trunk · 8F · MTP-F · Type B · 3–15 m (HDA-to-EDA horizontal run) · fiberopticom.com
ZDA
optional
EDA — 42U customer cabinets (12 per row · 120 total) · ANSI/TIA-942-B
Typical cabinet shown — repeated × 120
1U 144F MPO sliding panel — ToR uplinks · fiberopticom.com
1U horizontal cable manager · fiberopticom.com
ToR switch — customer-supplied · 25G / 100G
OM4 Base-8 MPO patch cord · 8F · MTP-MTP · 1–3 m · ≤0.15 dB · fiberopticom.com
LC duplex patch cord · OM4 · LC-LC · 1 m · UPC · aqua · fiberopticom.com
Server / storage / appliance
End-user equipment — data center tenant workload
SFP28 · 25G
QSFP28 · 100G
QSFP-DD · 400G
OSFP · 800G
fiberopticom.com patch cords
★ Physically diverse routing on Fabric A (overhead E) and Fabric B (under-floor W) satisfies ANSI/TIA-942-B Rating 3 requirement