Fluke DTX-MFM2 - Page 288

DTX Series CableAnalyzer
Technical Reference Handbook
13-34
Loss/Length Specifications (cont.)
Specification
DTX-MFM2
Multimode Modules
DTX-GFM2
Gigabit Modules
DTX-SFM2
Singlemode Modules
Power measurement uncertainty (accuracy)
± 0.25 dB
1
Measurement linearity
(18 °C to 28 °C constant temperature)
1300/1310 nm and 1550 nm: ±0.1 dB
2
850 nm: ±0.2 dB
3
Dynamic Range for main-remote
communication and nominal length
measurement
≥ 12 dB ≥ 22 dB ≥ 22 dB
Re-calibration period 1 year
Display update rate 1 reading per second
1. Under the following conditions:
• Power level: -20 dBm, continuous wave
• At 850 nm: 62.5/125 μm fiber with 0.275 NA
• At 1310 nm and 1550 nm: 9 /125 μm
• Ambient temperature: 23
o
C ±5
o
C
2. Linearity for 1310 nm and 1550 nm:
• Between 0 dBm and -55 dBm: ± 0.1 dB
• < -55 dBm: ± 0.2 dB
3. Linearity for 850 dBm:
• Between 0 dBm and -45 dBm: ± 0.2 dB
• < -45 dBm: ± 0.25 dB