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What Is the 5EFL Port Adapter?
Table 4 lists multimode optical-fiber parameters.
Table 4
Parameter
Size
Attenuation
Insertion loss
Bandwidth
Propagation delay
1
What Is the 5EFL Port Adapter?
The 5EFL port adapter provides up to five IEEE 802.3 Ethernet 10BASE-FL interfaces. (See
Figure 1.) Each Ethernet 10BASE-FL interface allows a maximum bandwidth of 10 Mbps, for a
maximum aggregate bandwidth of 50 Mbps, half-duplex. Each 10BASE-FL interface uses two
multimode (ST) receptacles for receive (RX) and transmit (TX). All five ports run at wire speed.
Figure 1
Port Adapter Locations on the VIP2 and in the Cisco 7200 Series Routers
This section provides information about where you can install the 5EFL port adapter on the VIP2
and in the Cisco 7200 series routers.
Note
occasionally not shown in this publication to highlight port adapter faceplate detail.
Figure 2 shows a VIP2-15 or VIP2-40 with two installed port adapters. Figure 3 shows a VIP2-50
with two installed port adapters. With the VIP2 oriented as shown, the left port adapter is in port
adapter slot 0, and the right port adapter is in port adapter slot 1.
8 PA-5EFL Ethernet 10BASE-FL Port Adapter Installation and Configuration
Multimode Optical-Fiber Parameters
Multimode
62.5/125 micrometer (nominal diameter) optical fiber
3.75 dB/km, at 850 nanometers (nm)
< 12.5 dB, at 850 nm
> 160MHzkm, at 850 nm
5 microseconds/km
Specified in IEC Publication 793-2[14].
5EFL Port Adapter, Faceplate View
Port adapters have handles that allow for easy installation and removal; however, they are
1
ETHERNET-10BFL
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