
Installation . . . . . . . . . . . . . . . . . .2
Operation . . . . . . . . . . . . . . . . . . .5
Cable Specifications . . . . . . . . . . .7
Technical Specifications . . . . . . . .9
Troubleshooting . . . . . . . . . . . . .10
Contact Us . . . . . . . . . . . . . . . . .11
Compliance Information . . . . . . .12
User’s Guide
CFETF10xx-105
Slide-in-Module Media Converter
• Fast Ethernet™
• Copper to Fiber
• 100Base-TX to 100Base-FX
Transition Networks CFETF10xx-105 series Fast
Ethernet™ 100Base-TX to 100Base-FX media
converters (designed to be installed in a
PointSystem™ chassis) connect 100Base-TX twistedpair copper cable to multimode or single mode
100Base-FX fiber-optic cable.
*Typical maximum cable distance. Actual distance is dependent upon the physical
characteristics of the network installation.
Part Number Port One - Copper
100Base-TX
Port Two - Fiber-Optic
100Base-FX
CFETF1011-105 RJ-45
100 m (328 ft)*
ST, 1300 nm multimode
2 km (1.2 miles)*
CFETF1013-105 RJ-45
100 m (328 ft)*
SC, 1300 nm multimode
2 km (1.2 miles)*
CFETF1014-105 RJ-45
100 m (328 ft)*
SC, 1300 nm single mode
20 km (12.4 miles)*
CFETF1015-105 RJ-45
100 m (328 ft)*
SC, 1300 nm single mode
40 km (24.9 miles)*
CFETF1016-105 RJ-45
100 m (328 ft)*
SC, 1310 nm single mode
60 km (32.3 miles)*
CFETF1017-105 RJ-45
100 m (328 ft)*
SC, 1550 nm single mode
80 km (49.7 miles)*
CFETF1018-105 RJ-45
100 m (328 ft)*
MT-RJ, 1300 nm multimode
2 km (1.2 miles)*
CFETF1019-105 RJ-45
100 m (328 ft)*
LC, 1310 nm single mode
20 km (12.4 miles)*
CFETF1039-105 RJ-45
100 m (328 ft)*
LC 1300 nm multimode
2 km (1.2 miles)*

CFETF10xx-105
2
24-Hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600
Installation
CAUTION: Wear a grounding device and observe electrostatic discharge
precautions when setting the 4-position switch and the jumper and when
installing the slide-in-module media converter. Failure to observe this caution
could result in damage to, and subsequent failure of, the media converter.
Set the 4-Position Switch
• The 4-position switch is located
on the circuit board.
• Use a small flat-blade screwdriver
or a similar device to set the
recessed switches (see the
drawing to the right).
1. Auto-Negotiation™
up Advertises 100 Mb/s full-duplex and half-duplex (only during
Auto-Negotiation). (See page 5.)
down Disable Auto-Negotiation.
2. Link Pass-Through
up Enable Link Pass-Through. (See page 6.)
down Disable Link Pass-Through.
3. AutoCross™
up Enable AutoCross™ - The media converter connects automatically
to either straight-through or crossover twisted-pair copper cable.
(See page 5.)
down Disable AutoCross™ - Either straight-through or crossover twisted-
pair copper cable must be installed, according to the site
requirements.
4. (not used)
Set the Hardware/Software Jumper
The hardware/software jumper is located on the media converter circuit
board. Use small needle-nosed pliers or a similar device to set the jumper.
Refer to the drawings below when setting the media converter for hardware or
software mode.
Hardware The media converter mode is determined by
the 4-position switch settings listed above.
Software The media converter mode is determined by
the most-recently saved, on-board
microprocessor settings.
Software Mode
Hardware Mode
H
S
H
S
Not Used
Link Pass-Through (up=Enable)
AutoCross (up=Enable)
uto-Negotiation (up=Enable)
1234
techsupport@transition.com -- Click the “Transition Now” link for a live Web chat.
3
Installation -- Continued
Install the Slide-In-Module
CAUTION: Wear a grounding device and observe electrostatic discharge
precautions when installing the CFETF10xx-105 slide-in-module media
converter. Failure to observe this caution could result in damage to, and
subsequent failure of, the media converter.
1. Carefully slide the slide-in-module into the installation slot, aligning the
module with the installation guides.
2. Ensure that the module is firmly seated inside the chassis.
3. Push in and rotate the attached panel fastener screw clockwise to secure
the module to the chassis front.
Connect the Twisted-Pair Copper Cable
1. Locate or build 100Base-TX compliant cables, with male RJ-45
connectors installed at both ends.
2. Connect the RJ-45 connector at one end of the cable to the RJ-45 port on
the CFETF10xx-105 media converter.
3. Connect the RJ-45 connector at the other end of the cable to the RJ-45
port on the other device (switch, workstation, etc.).
CFMFF100
CFMFF100
CETCF100
CFETF100
CFETF110
CFMFF100
SPD
PWR
FRX
CRX
FLNK
CLNK
10/100TX
RX
TX
10/100SX
100BASE-TX
RX
TX
100BASE-FX
Link Alert
E
D
0
50½
LA
PWR
RXF
RXC
LNK
COL
LKS
PWR
LKM
10BASE-2
10BASE-FL
LKS
PWR
LKM
LKS
PWR
LKM
Multimode
Singlemode
TX
RX
TX
RX
Multimode
Singlemode
TX
RX
TX
RX
Multimode
Singlemode
TX
RX
TX
RX
I
0
TERM
INIT
RX
TX
LNK
PWR
CPSMM120
SERIAL
10BASE-T
R
E
S
E
T
I
0
PWR
TX
FX
100BASE-TX
RX
TX
100BASE-FX
panel fastener screw
RJ-45 port
on the other device
(switch, work station, etc.)
RJ-45 port
on the media
converter

CFETF10xx-105
4
24-Hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600
Installation -- Continued
Connect the Fiber Cable
1. Locate or build 100Base-FX compliant fiber cable with male, twostranded TX to RX connectors installed at both ends.
2. Connect the fiber cables to the CFETF10xx-105 media converter as
described:
• Connect the male TX cable connector to the female TX port.
• Connect the male RX cable connector to the female RX port.
3. Connect the fiber cables to the other device (another media converter,
hub, etc.) as described:
• Connect the male TX cable connector to the female RX port.
• Connect the male RX cable connector to the female TX port.
Power the Media Converter
The slide-in-module media converter is powered through the Transition
Networks PointSystem™ chassis.
Connect the fiber cable
to the media converter
as shown.
Connect the fiber cable
to the other device
(media converter,
hub, etc.) as shown
RX
TX
RX
TX
techsupport@transition.com -- Click the “Transition Now” link for a live Web chat.
5
Operation
Status LEDs
The CFETF10xx-105 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 AC power.
FX On = A link has been established for the fiber connection.
Flashing = The fiber connection is receiving data.
TX On = A link has been established for the copper connection.
Flashing = The copper connection is receiving data.
Product Features
Auto-Negotiation™
The Auto-Negotiation feature allows the CFETF10xx-105 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 to
determine the best mode of operation.
A scenario where the media converter is linked to a non-negotiating device is
a case where the user may want to 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 gives the
user the ability to force the connection to the desired speed and duplex mode
of operation.
AutoCross™
When the AutoCross feature is activated, it allows either straight-through
(MDI) or crossover (MDI-X) copper cables to be used when connecting to
100Base-TX devices. AutoCross determines the characteristics of the
connection and automatically configures the unit to link up, regardless if the
copper cable is MDI or MDI-X configuration.
NOTE: Factory default is “enable AutoCross.” Transition networks
recommends leaving the device in the “enable” mode.
PWR
TX
FX
TX
CFETF105