GE Multilink ML3000 Instruction Manual page 73

CHAPTER 4: OPERATION
Fiber Speed, Std. Mode
Module
D 1000 Mb LX Single-
(Gigabit)
E 1000 Mb LX Single-
(Gigabit)
F 1000 Mb ZX Single-
(Gigabit)
G 1000 Mb ZX Single-
(Gigabit)
MULTILINK ML3000 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
Table 4–1: Power budget values for various modules
Std. Wave- Cable
km fdx length Size ìm
(hdx) nm
10+ 1310 9/125
25+ 1310 9/125
40+ 1550 9/125
70+ 1550 9/125
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.
X'mitr R'cvr Worst
Output PT Sens. PR OPB,
, dBm ,dBm dBm
-10.0 -22 10
-3.0 -21 16
-5.0 -22 15
-2.0 -22 18
OPERATION
Worst* typical typical*
distance OPB, distance
Km, fdx dBm Km, fdx
22 11 24
40 18 45
60 17 68
90 20 100
4–5