Agenda 4 · End-to-end trace
Fiber trace & loss budget
Trace any strand hop-by-hop from origin to endpoint, accumulating splice and segment loss against the service budget.
Hop count
12
Every hop shown below
Design loss @ 1550 nm
5.46 dB
As-designed, not measured
Loss budget
6.50 dB
Service acceptance threshold
Margin
+1.04 dB
Budget − design loss
Result
PASS
Loss budget — design loss at 1550 nm
C-band — lower fiber attenuation, the window long spans are designed in
22.23 km of fiber @ 0.21–0.23 dB/km (4.82 dB) + 2 fusion splices (0.15 dB) + 2 connector pairs (0.49 dB) = 5.46 dB design loss, +1.04 dB against a 6.50 dB budget.
Design loss
Computed from recorded route length × the cable datasheet coefficient at 1550 nm, plus per-splice and per-connector loss from the connectivity record. Fusion and connector loss are taken as wavelength-independent; only the fiber segments rescale between windows.
Measured loss
No end-to-end OLTS measurement on file. The optical records that do exist on this path:
- otdr-2026-117 — High-loss event on CAB-I75-024 at 9,414 ft (0.9 dB), EXFO MaxTester 730C, Today
- otdr-2026-102 — Break (Fresnel reflection) on CAB-WAT-018 at 6,289 ft (24.1 dB), VIAVI T-BERD 4000 V2, May 22, 2026
- otdr-2026-041 — High-loss event on CAB-I75-024 at 4,820 ft (0.1 dB), EXFO FTB-720C, Apr 10, 2026
- otdr-2026-042 — High-loss event on CAB-I75-024 at 9,871 ft (0.1 dB), EXFO FTB-720C, Apr 10, 2026
Trace path
Click any hop to highlight it on the network map below.
CAB-WAT-018
CAB-WAT-018 Strand 17 (Blue/Red)
CAB-WAT-018
CAB-WAT-018 Distribution 18
HH-WAT-014
HH-WAT-014 Handhole
SPL-WAT-014
SPL-WAT-014 Tray 1 Pos 5
CAB-I75-024
CAB-I75-024 Segment 24
MH-PONT-03
MH-PONT-03 Manhole
PP-PONT-03
PP-PONT-03 Port 17
CAB-PONT-051
CAB-PONT-051 Courthouse Lateral
SPL-PONT-014
SPL-PONT-014 Tray 1 Pos 9
PNL-OCIT-DC1-01
PNL-OCIT-DC1-01 Port 17
CAB-PONT-051
CAB-PONT-051 MDF jumper
TE-PONT-01
TE-PONT-01 County Courthouse MDF
Trace on network map
Path drawn in blue · click a hop to focusTrace on logical schematic
Traced sites & segments highlighted in blueClick a site to light up its fiber segments (labeled with cable id and fiber count) and dim the rest of the plant. Dashed segments are abandoned in place. The badge on a node counts splice enclosures housed in that structure.