Ross Opengear FED-6943, User Manual, Page: 50 / 92

6–4 • FED-6944 Setup Fiber Ethernet Switch Transceivers User Manual (Iss. 04)
Cabling for the FED-6944-20/40/80
The FED-6944-20/40/80 is used with the 8320AR-057 Full Rear Module. Each rear module
occupies two slots and accommodates one card. This rear module provides two single mode
optical inputs, two single mode optical outputs, and three RJ45 Ethernet 10/100/1000 ports.
The wavelength of the optical ports of your card is dependent on the card model. The wavelength
designations are specified in the following diagrams.
The optical distance the optical ports of your card support are dependent on the card model. The
distances are specified in
Table 6.3 . To calculate your fiber path link budget, refer to Table 6.4 on
page 6-7 and Table 6.5 on page 6-8 for optical budget specifications
.
Table 6.3 FED-6944 Supported Optical Distances
Model Cable Length
FED-6944-20 20km
FED-6944-40 40km
FED-6944-80 80km
Figure 6.2 Cable Connections for the FED-6944-20 Figure 6.3 Cable Connections for the FED-6944-40
Figure 6.4 Cable Connections for the FED-6944-80
Ethernet Port 3
Ethernet Port 2
Ethernet Port 1
1310nm
1310nm
1310nm
1310nm
Ethernet Port 3
Ethernet Port 2
Ethernet Port 1
1310nm
1310nm
1310nm
1310nm
Ethernet Port 3
Ethernet Port 2
Ethernet Port 1
1550nm
1550nm
1550nm
1550nm