
User’s Guide
J/E-PSW-FX-03
Stand-Alone Media Converter
• Just Convert-IT
• 10/100 Bridging (2-Port)
• 10Base-T/100Base-TX to 100Base-FX
The J/E-PSW-FX-03 Ethernet/Fast Ethernet 2-port
bridging media converter connects 10Base-T
Ethernet or 100Base-TX Fast Ethernet twisted-pair copper network devices to network
devices on a 100Base-FX Fast Ethernet fiber network.
Installation . . . . . . . . . . . . . . . . . . . . .2
Operation . . . . . . . . . . . . . . . . . . . . .6
Cable Specifications . . . . . . . . . . . . . .9
Technical Specifications . . . . . . . . . . .9
Troubleshooting . . . . . . . . . . . . . . .11
Declaration of Conformity . . . . . . .13
Contact Us . . . . . . . . . . . . . . . . . . .14
Compliance Information . . . . . . . . .15
*Typical maximum cable distance. Actual distance is dependent upon the physical
characteristics of the network.
**Single Fiber, install in pairs.
Part Number Port 1 - Copper
10Base-T/100Base-TX
Port 2- Duplex Fiber Optic
100Base-FX
J/E-PSW-FX-03 RJ-45
100 m (328 ft)*
ST, 1310 nm multimode
2 km (1.2 miles)
J/E-PSW-FX-03(SC) RJ-45
100 m (328 ft)*
SC, 1310 nm multimode
2 km (1.2 miles)
J/E-PSW-FX-03(SM) RJ-45
100 m (328 ft)*
SC, 1310 nm single mode
20 km (12.4 miles)
J/E-PSW-FX-03(100) RJ-45
100 m (328 ft)*
SC, 1310 nm TX/1550 nm RX
SM, 20 km(12.4 miles)**
J/E-PSW-FX-03(101) RJ-45
100 m (328 ft)*
SC, 1550 nm RX/1310 nm TX
SM, 20 km(12.4 miles)**

2
J/E-PSW-FX-03
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 DIP switch. Failure to observe this caution could result in damage to
the media converter.
4-position DIP switch
The 4-position DIP switch is located on the
rear panel of the media converter. Use a
small, flat-blade screwdriver or similar tool
to set the recessed switches.
SW 1. Auto-Negotiation
UP Enables Auto-Negotiation on
the copper port.
Advertises 100 Mb/s full-duplex and half duplex,
and 10 Mb/s full-duplex and half duplex.
DOWN Disables Auto-Negotiation: copper port will enter Force mode dictated by
SW 1 and SW 2.
SW 2. Copper Mode
(Applies only if SW 1 is DOWN.)
UP Forces full-duplex operation on the copper port.
DOWN Forces half-duplex operation on the copper port.
SW 3. Speed
(Applies only if SW 1 is DOWN.)
UP Forces 100 Mb/s operation on the copper port.
DOWN Forces 10 Mb/s operation on the copper port.
SW 4. Fiber Mode
UP Forces full-duplex operation on the fiber port.
DOWN Forces half-duplex operation on the fiber port.
Part Number Description
SPS-2460-SA Optional External Power Supply; 24-60VDC Stand-Alone;
Output: 12VDC, 1.0 A
SPS-2460-CC Optional External Power Supply; 24-60VDC Piggy-back;
Output: 12VDC, 1.0 A
E-MCR-05 12-Slot Media Converter Rack (includes a universal internal power supply)
17 x 15 x 5 in. (432 x 381 x 127 mm)
WMBS Optional Wall Mount Brackets
Length: 3.2 in. (81 mm), Fits converter length: 3.9 in. (99 mm)
WMBV Optional Vertical Mount Bracket, Length: 5.0 in. (127 mm)
WMBD Optional DIN Rail Mount Bracket, Length: 5.0 in. (127 mm)
WMBD-FS Optional DIN Rail Mount Bracket (flat, small); Length: 3.1in. (79 mm)
Optional Accessories (sold separately)
techsupport@transition.com – Click the “Transition Now” link for a live Web chat.
3
Installation — continued
Installing the fiber cable
1. Locate or build a IEEE 803.2™ compliant 100Base-FX fiber cable with male,
two-stranded TX to RX connectors installed at both ends.
2. Connect the fiber cables to the J/E-PSW-FX-03 media converter as described:
• Connect the male TX cable connector 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 the female RX port.
• Connect the male RX cable connector to the female TX port.
See illustraton below.
Connect fiber cable
to media converter
as shown.
RX
TX
Connect fiber cable
to other device
(media converter,
hub, etc.) as shown
RX
TX
2. Copper Mode
1. Auto-Negotiation
3. Speed
4. Fiber Mode

4
J/E-PSW-FX-03
24-Hour Technical Support: 1-800-260-1312 – International: 00-1–952-941-7600
Installation — Continued
Installing the twisted-pair copper cable
1. Locate or build IEEE 803.2™ compliant 10Base-T or 100Base-TX cables, with
a male RJ-45 connector installed at both ends.
2. Connect the RJ-45 connector at one end of the cable to the RJ-45 port on the
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.).
Note: The MDI (straight-through) or MDI-X (crossover) cable connection is
configured automatically, according to the network conditions.
techsupport@transition.com – Click the “Transition Now” link for a live Web chat.
5
Installation — Continued
Powering the media converter
Note: The external power supply provided with this product is UL listed by the
manufacturer of the power supply.
AC
1. Connect the barrel connector on the power adapter to the barrel connector on
the rear panel on the media converter.
2. Connect the plug of the power adapter into an active AC power receptacle.
3. Verify that the media converter has powered ON: the power ON LED should
be lit.
DC
Consult the user’s guide for the Transition Networks SPS-2460-xx DC, which is
an external DC power supply for powering the media converter.
DC power adapter
1. Insert the power adapter connector into the barrel connector on the rear panel
of the media converter.
2. Connect the plug of the power adapter into an active AC power receptacle:
the power LED should be lit on the front panel of the media converter.
Rear Pan el
RJ-45 port
on the media
converter
RJ-45 port
on the other device
(switch, work station, etc
Power
Barrel Connector
4-Position
DIP Switch