JDS Uniphase 4100, User Manual, Page: 166 / 182

Chapter 10
Technical specifications
OTDR modules
146 User Manual 770000102/08
RMS Dynamic Range d
33 dB
31 dB
37 dB
35 dB
35 dB
34 dB
40 dB
38 dB
42 dB
40 dB
40 dB
40 dB
40 dB
Distance Range
up to 260 km
Pulse width
5ns to 20 µs 3 ns to 20 µs 3 ns to 20 µs 3 ns to 20 µs
Event Dead Zone
e
1.5 m
f
0.9 m 0.9 m 0.8 m
f
Attenuation Dead Zone g
6 m 4 m
a. Laser at 10 µs and 25° C
b. Guaranteed value corresponding to the one-way difference (in dB) between the level of back-diffusion extrapolated at the
beginning of the fiber and the level containing 98% of noise, after 3 minutes of averaging, with the largest pulse width
(according to IEC 61749 standard).
c. Except for the 8136RMA (29 dB)
d. Typical value corresponding to the difference (in dB) between the level of back-diffusion extrapolated at the beginning of
the fiber and the RMS noise level, after 3 minutes of averaging, with the largest pulse width.
e. EDZ measured at 1.5 dB below the peak of a non-saturated reflecting event at shortest pulse width.
f. At 1310 nm
g. ADZ measured at +/- 0.5 dB on the basis of a linear regression from a reflectance of type FC/UPC (-55 dB) at shortest
pulse width, at 1310 nm.
Singlemode Modules
LA
41xxLA
MA
41xxMA
MAE
41XXMAE
MP
41xxMP
Multimode / Singlemode OTDR Module
Central Wavelength
a
850 / 1300 nm ± 30 nm 1310 / 1550 nm± 20 nm
Min IEC Dynamic
b
22 / 19.5 dB 31 / 30 dB
Typical RMS Dynamic Range
c
26 / 24 dB 37 / 35 dB
Distance Range
Up to 80 km Up to 260 km
Pulse width
3 ns to 1 µs 3 ns to 20 µs
Event Dead Zone
d
0.8 m 0.9 m
Attenuation Dead Zone
4 m
e
4 m
f
a. Laser in CW mode, at 25° C
b. Guaranteed value corresponding to the one-way difference (in dB) between the level of back-diffusion extrapolated at the
beginning of the fiber and the level containing 98% of noise, after 3 minutes of averaging, with the largest pulse width
(according to IEC 61749 standard).
c. Typical value corresponding to the difference (in dB) between the level of back-diffusion extrapolated at the beginning of the
fiber and the RMS noise level, after 3 minutes of averaging, with the largest pulse width.
d. EDZ measured at +/- 1.5 dB below the peak of a non-saturated reflecting event at shortest pulse width.
e. ADZ measured at +/- 0.5 dB on the basis of a linear regression using a -40 dB type reflectance, at shortest pulse width.
f. ADZ measured at +/- 0.5 dB on the basis of a linear regression from a reflectance of type FC/UPC (-55 dB) at shortest pulse
width, at 1310 nm.
MTS2100 4100 Module US rev08.book Page 146 Jeudi, 1. août 2013 1:43 13