Black Box LH1500
A
Media Converters Installation and User Guide (08/05)
37
Fiber
Port
Module
Speed,
Std.
Mode
Std. km
fdx
(hdx)
Wave-
length
nm
Cable
Size
µ
m
X’mitr
Output
P
T ,
dB
R’cvr
Sens.
P
R ,
dB
Worst
OPB,
dB
Worst*
distance
Km, fdx
typical
OPB,
dB
typical*
distance
Km, fdx
LH1500A
MST, MSC
100Mb
FX
Multi-
mode
2
(0.4)
1300
62.5/125
50/125
-20
-23.5
-31
-31
9.0
5.5
2.5
2.0
14
12
5
4
LH1501A
100Mb
FX
Single-
mode
25
(0.4)
1300
9/125
-15
-31
14
28
17.5
35
* Note: The use of either multi-mode or single-mode fiber to operate at 100Mbps speed
over long distances (i.e., over approx. 400 meters) can be achieved
only
if the following
factors are both applied:
•
The 100Mb fiber segment must operate in full-duplex (FDX) mode, i.e. a
switch (or equal external unit such as a FDX NIC) must be used, and
•
The worst-case OPB of the fiber link must be greater than the fiber cable’s
passive Attenuation.
(Attenuation = Cable loss + LED aging loss + Insertion loss + safety factor)
