Network Distance Extension
The TRANSITION Networks two-port Ethernet/Fast Ethernet bridging
media converter can extend Fast Ethernet half-duplex network
distances by separating one or two half-duplex Ethernet or Fast
Ethernet copper CSMA/CD collision domain(s) by a half-duplex Fast
Ethernet fiber CSMA/CD collision domain or by connecting two half-
duplex ur full-duplex Ethernet or Fast Ethernet copper CSMA/CD
collision domain(s) over full-duplex fiber.
Network Congestion Reduction
The TRANSITION Networks two-port Ethernet/Fast Ethernet bridging
media converter can reduce network congestion by segmenting
network traffic Network segmentation is achieved by regulating the
number of data signals sent among stations. The bridging media
converter scans the destination address on each packet header
received on a port, searches a dynamic internal MAC routing table,
and forwards the packet only if the data is intended for a station
beyond the local collision domain. If the data is intended for a station
on the collision domain from which the packet was received, the
bridging media converter discards (filters) the packet, since any signal
on the local segment already has been received by all stations on that
segment. Baseline network performance also is improved because
bridging media converters do not forward collision signals or error
packets from one collision domain to another.
Rate Conversion
The TRANSITION Networks two-port Ethernet/Fast Ethernet bridging
media converter can provide rate conversion between terminal
devices on a 10BASE-T copper legacy Ethernet network and terminal
devices on a 100BASE-FX fiber Fast Ethernet network, using the auto-
negotiation process. When two auto-negotiating devices with multiple
capabilities are connected together, the highest performance mode of
operation is found based on a priority`table. Each 100BASE-TX station
sends a burst of link integrity test pulses, called a fast link pulse (FLP).
If the receiving switch is capable of 10BASE-T communication only,
the FLPs are ignored and the cable segment operates as 10BASE-T. If
the device can support 100BASE-TX operation, the bridging media
converter detects the FLPs, uses the auto-negotiation algorithm and
FLP data to determine the highest possible cable segment speed and
mode, and automatically places both the device and the bridging
media converter into 100BASE-TX mode.
CABLE SPECIFICATIONS
(continued)
The physical characteristics of the 100BASE-FX cable must meet or exceed
IEEE 802.3 100BASE-FX specifications.
Fiber Cable
Bit error rate:
≤
10-9
MULTIMODE
Fiber Optic Cable Recommended:
62.5 / 125 µm multimode fiber
Optional:
100 / 140 µm multimode fiber
85 / 125 µm multimode fiber
50 / 125 µm multimode fiber
E-PSW-FX-03
1300 nm
Fiber Optic Transmitter Power:
min: -19.0 dBm
max: -14.0 dBm
Fiber Optic Receiver Sensitivity:
min: -30.0 dBm
max: -14.0 dBm
Typical Maximum Cable Distance*:
2 kilometers
E-PSW-FX-03(SC)
1300 nm
Fiber Optic Transmitter Power:
min: -19.0 dBm
max: -14.0 dBm
Fiber Optic Receiver Sensitivity:
min: - 30.0 dBm
max: -14.0 dBm
Typical Maximum Cable Distance*:
2 kilometers
SINGLEMODE
Fiber Optic Cable Recommended:
9 µm singlemode fiber
E-PSW-FX-03(SM) 1300
nm
Fiber-optic Transmitter Power:
min: -15.0 dBm
max: -8.0 dBm
Fiber-optic Receiver Sensitivity:
min: - 31.0 dBm
max: -8.0 dBm
Typical Cable Distance*:
20 kilometers
E-PSW-FX-03(LH)**
1300 nm
Fiber-optic Transmitter Power:
min: -8.0 dBm
max: -2.0 dBm
Fiber-optic Receiver Sensitivity:
min: -34.0 dBm
max: -7.0 dBm
Minimum Attenuation:
8 dB
Typical Cable Distance*:
40 kilometers
E-PSW-FX-03(XL) 1300
nm
Fiber-optic Transmitter Power:
min: -5.0 dBm
max: 0.0 dBm
Fiber-optic Receiver Sensitivity:
min: -34.0 dBm
max: -7.0 dBm
Minimum Attenuation:
7 dB
Typical Cable Distance*:
60 kilometers
E-PSW-FX-03(LW)
1550 nm
Fiber-optic Transmitter Power:
min: -5.0 dBm
max: 0.0 dBm
Fiber-optic Receiver Sensitivity:
min: -34.0 dBm
max: -7.0 dBm
Spectral Width
0.4 nm FWHM
Minimum Attenuation:
7 dB
Typical Cable Distance*:
80 kilometers
*Actual distance dependent upon physical characteristics of network installation.
**Minimum fiber cable loss MUST be 8.0 dB to prevent receiver damage.
Содержание E-PSW-FX-03
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