Cable Box User Manual

CFETF10xx-205
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24-hour Technical Support: 1-800-260-1312 International: 00-1-952-941-7600 [e-mail] -- Click the “Transition Now” link for a live Web chat.
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Operation -- Continued
Full-Duplex Network
In a full-duplex network, maximum cable lengths are determined by the type
of cables used. See page 1 (front cover) for available CFETF10xx-205 models.
The 512-Bit Rule does not apply in a full-duplex network.
Pause Control Frame
The pause control feature can improve network performance by allowing one
end of the link to signal the other to discontinue frame transmission for a set
period of time to relieve buffer congestion.
NOTE: If the pause control feature is present on ALL network devices attached
to the media converter(s), enable the pause control feature on the media
converter(s). Otherwise, disable this feature.
Link Pass-Through
When the Link Pass-Through feature is activated, it allows the media
converter to monitor both the fiber and copper RX (receive) ports for loss of
signal. In the event of a loss of an RX signal (1), the media converter will
automatically disable the TX (transmit) signal (2), thus, “passing through” the
link loss (3). The far-end device is notified automatically of the link loss (4),
which prevents the loss of valuable data transmitted unknowingly over an
invalid.
Far-End Fault
When a fault occurs on an incoming fiber link (1), the media converter
transmits a Far-End Fault signal on the outgoing fiber link (2). In addition, the
Far-End Fault signal also activates the Link Pass-Through, which in turn
disables the link on the copper portion of the network (3) and (4).
Far-End Fault
signal is sent
Media
Converter A
Media
Converter B
Near-End
Device
Far-End
Device
original fault
on the fiber link
media converter B
disables the copper link
media converter A
disables the copper link
3
4
2
1
4
1
Media
Converter A
Media
Converter B
Near-End
Device
Far-End
Device
original fault
on the co
pp
er link
media converter B
disables the co
pp
er lin
k
media converter A
disables the fiber TX link
3
2
media converter B
loses the fiber RX link
Cable Specifications
The physical characteristics must meet or exceed IEEE 802.3™ specifications.
Fiber Cable
Bit Error Rate: <10-9
Single mode fiber (recommended): 9 µm
Multimode fiber (recommended): 62.5/125 µm
Multimode fiber (optional): 100/140, 85/140, 50/125 µm
CFETF1011-205 1300 nm multimode
Fiber Optic Transmitter Power: min: -19.0 dBm max: -14.0 dBm
Fiber Optic Receiver Sensitivity: min: -30.0 dBm max: -14.0 dBm
Link Budget: 11.0 dB
CFETF1013-205 1300 nm multimode
Fiber Optic Transmitter Power: min: -19.0 dBm max: -14.0 dBm
Fiber Optic Receiver Sensitivity: min: -30.0 dBm max: -14.0 dBm
Link Budget: 11.0 dB
CFETF1014-205 1310 nm single mode
Fiber-optic Transmitter Power: min: -15.0 dBm max: -8.0 dBm
Fiber-optic Receiver Sensitivity: min: -31.0 dBm max: -8.0 dBm
Link Budget: 16.0 dB
CFETF1015-205 1310 nm single mode
Fiber-optic Transmitter Power: min: -8.0 dBm max: -2.0 dBm
Fiber-optic Receiver Sensitivity: min: -34.0 dBm max: -7.0 dBm
Link Budget: 26.0 dB
CFETF1016-205 1310 nm single mode
Fiber-optic Transmitter Power: min: -5.0 dBm max: 0.0 dBm
Fiber-optic Receiver Sensitivity: min: -34.0 dBm max: -7.0 dBm
Link Budget: 29.0 dB
CFETF1017-205 1550 nm single mode
Fiber-optic Transmitter Power: min: -5.0 dBm max: 0.0 dBm
Fiber-optic Receiver Sensitivity: min: -34.0 dBm max: -7.0 dBm
Link Budget: 29.0 dB
CFETF1018-205 1300 nm multimode
Fiber Optic Transmitter Power: min: -19.0 dBm max: -14.0 dBm
Fiber Optic Receiver Sensitivity: min: -33.5 dBm max: -14.0 dBm
Link Budget: 14.5 dB
CFETF1019-205 1310 nm single mode
Fiber-optic Transmitter Power: min: -15.2 dBm max: -8.0 dBm
Fiber-optic Receiver Sensitivity: min: -32.5 dBm max: -3.0 dBm
Link Budget: 17.3 dB