Appendix A: Specifications

CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual A-35

Table A- 7: O/E converter (CSA7000 Series only) (Cont.)

Characteristic2Description
nMaximum noise output, rms CSA7404:
1310 nm and 1550 nm
≤1.1 W + (6.5% of W/div setting)
850 nm
≤2.1 W + (6.5% of W/div setting)
7
8
0
780 nm
≤2.6 W + (6.5% of W/div setting)
CSA7154:
1310 nm and 1550 nm
≤0.85 W + (6.5% of W/div setting)
850 nm
8
5
0
n
m
≤1.6 W + (6.5% of W/div setting)
780 nm
≤2.0 W + (6.5% of W/div setting)
O/E converter alone
≤0.85 W
Optical return loss, typical With 50 m or 62.5 m core multimode fiber (CPC6):
>14 dB for 780 nm ±20 nm
>14 dB for 850 nm ±20 nm
With 9 m core singlemode fiber (SMF-28):
>28 dB for 1310 nm ±20 nm
>28 dB for 1550 nm ±20 nm
The return loss includes optical reflection contributions from the device under
test’s SC-SPC connector interface with the user’s PC style connector as well as
all other optical reflections from that interface up to and including the device
under test’s final photo diode termination.
Peak-to-peak aberrations in
response to falling edge, typical
11% peak-to-peak total aberration (system including O/E-to-CH1 input adapter,
and instrument)
Maximum falling edge 10% to 2% settling time
(ORR disabled), typical
The step response to a fast optical square OFF edge reaches toc within 2% of
the final 0% level within 2 ns after the 10% transition point.