Transition Networks F-SM-MM-04(LH), F-SM-MM-04(LW), F-SM-MM-04 User Manual

USER’S GUIDE

F-SM-MM-04

Stand-Alone Media Converter

• Gigabit Ethernet™

• Singlemode to Multimode

• 1000Base-SX to 1000Base-LX

Transition Networks F-SM-MM-04 Gigabit
Ethernet™ Media Converter connects
singlemode to multimode fiber-optic cable.
The F-SM-MM-04 Media Converters
function in either full-duplex or half-duplex
mode.

* Typical maximum cable distance. (Actual distance is dependent upon the
physical characteristics of the network installation.) See the Cable Specifications
on page 4 for more information on the cable length.

Optional Accessories (sold separately)

Part Number Port One - Fiber-Optic

1000Base-SX

Port Two - Fiber-Optic
1000Base-LX

F-SM-MM-04 SC, 850 nm multimode

220 m (721 ft)*

SC, 1300 nm singlemode
10 km (6.2 miles)*

F-SM-MM-04(LH) SC, 850 nm multimode

220 m (721 ft)*

SC ,1310 nm singlemode
25 km (15.5 miles)*

F-SM-MM-04(LW) SC, 850 nm multimode

220 m (721 ft)*

SC, 1550 nm singlemode
65 km (40.4 miles)*

Installation . . . . . . . . . . . . . . . . . .2

Operation . . . . . . . . . . . . . . . . . . .3

Cable Specifications . . . . . . . . . . .4

Technical Specifications . . . . . . . .5

Fault Isolation and Correction . . .6

Contact Us . . . . . . . . . . . . . . . . . .7

Compliance Information . . . . . . . .8

Part Number Description

E-MCR-03 12-Slot Media Converter Rack (includes universal internal power

supply) 17 x 15 x 5 in. (432 x 381 x 127 mm)

WMBL Optional Wall Mount Brackets

Length: 4.0 in. (102 mm), Fits converter length: 4.7 in. (109 mm)

SPS-1872-SA Optional External Power Supply; 18-72VDC Stand-Alone Wide-

Input; Output: 12.6VDC, 1.0 A

SPS-1872-CC Optional External Power Supply; 18-72VDC Wide-Input;

Output: 12.6VDC, 1.0 A

2

F-SM-MM-04

Tech Support: 800-260-1312 International: 952-941-7600 7am-6pm CST (GMT-6:00)

INSTALLATION

Installing the Cable

FIBER

1. Locate or build fiber cable with male, two-stranded TX to RX connectors
installed at both ends.

2. Connect the fiber cables to F-SM-MM-04 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.

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

Power the Media Converter

AC

1. Install the power adapter cord to the back of the Media Converter.

2. Connect the power adapter plug to AC power.

3. Verify that the Media Converter is powered by observing the illuminated
LED power indicator light.

DC

Consult the User’s Guide for the Transition Networks SPS1872-xx DC External
Power Suppy for powering the Media Converter.

[e-mail] -- Select the “Transition Now” Link for a Live Web Chat

3

Link

PWR

Link

Multimode

Singlemode

(TX) (RX)(TX) (RX)

(Port 1) (Port 2)

OPERATION

Using Status LEDs

Use the status LEDs to monitor the Media Converter operation in the network.

Pwr Steady LED indicates connection to external AC power.

Link (left) Steady LED indicates multimode fiber link connection.

Link (right) Steady LED indicates singlemode link connection.

Full-Duplex Network

In a full-duplex network, maximum cable lengths are determined by the type
of cables that are used. See page 4 for the cable specifications for the

different F-SM-MM-04 models. (The 512-Bit Rule does not apply in a full­duplex network.)

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 (BT) of a particular collision
domain. If the result is less than or equal to 512 BT, 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:

http://www.transition.com/learning/whitepapers/colldom_wp.htm