CHAPTER 4: OPERATION OPERATION
MULTILINK ML3000 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 4–5
The use of either multi-mode or single-mode fiber to operate at 100 Mbps speed over long
distances (i.e., in excess of 400 m) can be achieved only if the following are applied:
1. The 100 Mb fiber segment must operate in full-duplex (FDX) mode (i.e. the full-
duplex (factory default).
2. The worst-case OPB of the fiber link must be greater than the fiber cable's
passive attenuation, where attenuation is the sum of cable loss, LED aging
loss, insertion loss, and safety factor.
D 1000 Mb LX
(Gigabit)
Single- 10+ 1310 9/125 -10.0 -22 10 22 11 24
E 1000 Mb LX
(Gigabit)
Single- 25+ 1310 9/125 -3.0 -21 16 40 18 45
F 1000 Mb ZX
(Gigabit)
Single- 40+ 1550 9/125 -5.0 -22 15 60 17 68
G 1000 Mb ZX
(Gigabit)
Single- 70+ 1550 9/125 -2.0 -22 18 90 20 100
Table 4–1: Power budget values for various modules
Fiber
Module
Speed, Std. Mode Std.
km fdx
(hdx)
Wave-
length
nm
Cable
Size ìm
X’mitr
Output PT
, dBm
R’cvr
Sens. PR
,dBm
Worst
OPB,
dBm
Worst*
distance
Km, fdx
typical
OPB,
dBm
typical*
distance
Km, fdx
To Next Page
Loading...
Need help?
General
