Transition Networks CFETF1011-205 Operation, Cable Specifications -- Continued, Status LEDs

CFETF10xx-205

Operation

Status LEDs

The CFETF10xx-205 media converter is designed to operate without user intervention. Use the status LEDs to monitor the media converter operation in the network.

PWR	On	Connection to external power.
LKF	On	The fiber link has been established.
LKC	On	The copper link has been established.
RXF	Flashing	The fiber link is receiving data.
RXC	Flashing	The copper link is receiving data.

	PWR
RFX	LKF
RXC	LKC
TX

RX

Cable Specifications -- Continued

CFETF1029-2xx	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 dB
CFETF1017-351	1510 nm multimode
Fiber Optic Transmitter Power:	min: -5.0 dBm max: 0.0 dBm
Fiber Optic Receiver Sensitivity:	min: -34.0 dBm max: -3.0 dBm
Link Budget:	29 dB
CFETF1017-353	1530 nm multimode
Fiber Optic Transmitter Power:	min: -5.0 dBm max: 0.0 dBm
Fiber Optic Receiver Sensitivity:	min: -34.0 dBm max: -3.0 dBm
Link Budget:	29 dB
CFETF1017-355	1550 nm multimode
Fiber Optic Transmitter Power:	min: -5.0 dBm max: 0.0 dBm
Fiber Optic Receiver Sensitivity:	min: -34.0 dBm max: -3.0 dBm
Link Budget:	29 dB
CFETF1017-357	1570 nm multimode

Product Features

CFETF205

Fiber Optic Transmitter Power:	min: -5.0 dBm max: 0.0 dBm
Fiber Optic Receiver Sensitivity:	min: -34.0 dBm max: -3.0 dBm

Auto-Negotiation

The Auto-Negotiation feature allows the CFETF10xx-205 media converter to automatically configure itself to achieve the best possible mode of operation over a link. The media converter broadcasts its speed (100 Mb/s) and duplex capabilities (full or half) to the other devices and negotiates the best mode of operation. Auto-Negotiation allows quick and easy installation because the optimal link is established automatically. No user intervention is required.

A scenario where the media converter is linked to a non-negotiating device, disable Auto-Negotiation. In this instance, the mode of operation will drop to the least common denominator between the two devices (e.g., 100 Mb/s, half-duplex). Disabling this feature enables forcing the connection to the best mode of operation.

Half-Duplex Network (512-Bit Rule)

In a half-duplex network, the maximum cable lengths are determined by the round trip delay limitations of each Fast Ethernet collision domain. (A collision domain is the longest path between any two terminal devices, e.g., a terminal, switch, or router.)

The 512-Bit Rule determines the maximum length of cable permitted by calculating the round-trip delay in bit-times (BTU) of a particular collision domain. If the result is less than or equal to 512 BTU, the path is good.

For more information on the 512-Bit Rule, see the white paper titled “Collision Domains” on the Transition Networks website at: www.transition.com

Link Budget: 29 dB

The fiber optic transmitters on this device meet Class I Laser safety requirements per IEC-825/CDRH standards and comply with 21 CFR1040.10 and 21CFR1040.11.

6 24-hour Technical Support: 1-800-260-1312 International: 00-1-952-941-7600 techsupport@transition.com -- Click the “Transition Now” link for a live Web chat. 11