Operation Manual

Maintenance and Specifications
Specifications
14-33
14
Loss/Length Specifications (cont.)
-continued-
Specification
DTX-MFM2
Multimode Modules
DTX-GFM2
Gigabit Modules
DTX-SFM2
Singlemode Modules
Length measurement accuracy ± 1.5 m plus ± 2 % of length
Propagation time accuracy ± 15 ns plus ± 2 % of propagation time
Output power (nominal) ≥ -20 dBm ≥ -9 dBm ≥ -7 dBm
Output power stability over 8-hour
period (after 5 minute warmup)
± 0.10 dB over 8 hours,
5 minute warm-up time
± 0.25 dB over 8 hours,
5 minute warm-up time
± 0.25 dB over 8 hours,
5 minute warm-up time
Detector type InGaAs
Calibrated wavelengths 850 nm, 1310 nm, 1550 nm
Power measurement range 850 nm: 0 dBm to -52 dBm
1300/1310 nm, 1550 nm: 0 dBm to -60 dBm
Display Resolution dB, dBm: 0.01
Linear (µW): >400, >40, >4, >0.4, ≤0.4: 1, 0.1, 0.01, 0.001, 0.0001