Cisco CWDM-GBIC-1610 Manual de instalação e especificação - Página 14
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Mode-Conditioning Patch Cord Description
A mode-conditioning patch cord is an optical fiber cable assembly that consists of a pair of optical fibers
terminated with connector hardware. Specifically, the mode-conditioning patch cord is composed of a
single-mode optical fiber permanently coupled off-center (see Offset in
graded-index multimode optical fiber.
patch cord assembly.
Figure 5
2
RX
TX
3
4
1
Beige color identifier
2
To GE interface
3
RX
4
TX
5
Blue color identifier
Figure 6
2
RX
TX
1
Gray color identifier
2
To GE interface
3
Blue color identifier
4
Multimode bar
The mode-conditioning patch cord assembly is composed of duplex optical fibers, including a
single-mode-to-multimode offset launch fiber connected to the transmitter, and a second conventional
graded-index multimode optical fiber connected to the receiver. The use of a plug-to-plug patch cord
maximizes the power budget of multimode 1000BASE-LX and 1000BASE-LH links.
Gigabit Interface Converter (GBIC) Module and Small Form-Factor Pluggable (SFP) GBIC Module Installation Information and Specifications
14
Mode Conditioning Patch Cord Assembly with GBIC Module-Type Connector
1
5
Mode Conditioning Patch Cord Assembly with SFP Module-Type Connector
1
/ /
3
5
Figure 5
and
Figure 6
show a diagram of the mode-conditioning
6
/ /
/ /
/ /
Offset
7
8
6
6
Multimode fiber
7
Single-mode fiber
8
Offset
9
To cable plant
4
/ /
/ /
Offset
6
4
5
Single-mode bar
6
Offset
7
Beige color identifier
8
To cable plant
Figure 5
and
Figure
6) to a
1
9
1
7
8
7
OL-5067-08