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General Information and Specifications – 9
Specifications
The following optical specifications describe the warranted characteristics of the unit ( Table 2).
Supplementary specifications describe the typical non-warranted performance of the unit
(Table 3 and Table 4).
Table 2: Optical Specifications
Parameter
Typical
Maximum
Insertion loss
single-mode
1
multimode
1
0.4 dB
0.3 dB
0.7 dB
0.6 dB
Return loss
single-mode
2
standard/analog
multimode
3
standard/analog
65 dB/>65 dB
25 dB/35 dB
60 dB/65 dB (minimum)
20 dB/30 dB (minimum)
Polarization dependent loss (single-mode) 0.02 dB 0.05 dB
Insertion loss stability
4
±0.03 dB ±0.05 dB
Repeatability
5
sequential switching
random switching
±0.003 dB
±0.01 dB
±0.005 dB
±0.025 dB
Crosstalk (single-mode) -100 dB -80 dB
Input power (continuous wave) 300 mW —
Channel options
front-panel FC or ST connectors
front-panel SC connectors
5 m rear-panel pigtail
20 (maximum)
24 (maximum)
48 (maximum)
Switching time
one channel
each additional channel
300 ms (typical)
+12 ms (typical)
1
Insertion loss does not include connectors. Include 0.2 dB (typical), 0.5 dB (maximum) for each connector.
2
Excluding connectors.
3
Values shown for 62.5 µm diameter maximum fiber core.
4
Drift of any channel relative to one assigned reference channel at ±3 °C deviation of ambient temperature over
a seven-day period.
5
Optimum repeatability after one hour warm-up.