Technical Specifications
10-16 Issue 8.0 July 2002
FT-2000 OC-48 Lightwave System with
Wavelength Division Multiplexing and FT-LBA
Systems 10
Table 10-12 shows the transmission distances of the FT-2000 OC-48 Lightwave System with
wavelength division multiplexing only, and with wavelength division multiplexing and the
FT-Lightwave Booster Amplifier.
Notes
:
1. The dispersion limit only applies to the 1.5µm standard performance transmitters using standard fiber.
The limit is 2520 psec/nm or 140 km.
2. Standard fiber assumes the following fiber loss (including splice loss) with a dispersion limit of 18 psec/nm
per kilometer:
1.3 µm — 0.45 dB/km
1.5 µm — 0.25 dB/km.
3. Low loss fiber assumes the following fiber loss (including splice loss) with a dispersion limit of 18 psec/nm
per kilometer:
1.3 µm — 0.375 dB/km
1.5 µm — 0.22 dB/km.
4. Dispersion-shifted fiber assumes a 0.25 dB/km loss at 1.5 µm.
5. Only 1.5 µm transmitters will work with dispersion-shifted fiber. On dispersion-shifted fiber,
both versions of 1.5µm transmitters support the same distances.
Capacity 10
48 DS3 Equivalent Signals (32,256 two-way voice circuits per fiber pair)
Table 10-12. Transmission Distances with Wavelength Division Multiplexing and the FT-LBA
OC48 TRMTR A/D
(1.5 LBA, W1 and W2)
(STS1 1.5 LBA, W1 and W2)
Circuit Packs (Note 1) Loss Budget
Standard
Fiber (SF)
(Note 2)
Low Loss
Fiber (LLF)
(Note 3)
Dispersion-
Shifted
Fiber (DSF)
(Note 4) (Note 5)
Used with Wavelength Division 20.5 dB (SF, LLF) 82 km 93 km 86 km
Multiplexing 21.5 dB (DSF) 51 miles 58 miles 53 miles
Used with Wavelength Division 31.0 dB (SF, LLF) 124 km 140 km —
Multiplexing and FT-LBA 77 miles 87 miles
To Next Page
Loading...
Need help?
General