Edimax ET-912, ET-912MSC, ET-912MST, ET-912SSC3, ET-912SSC4 User Manual

Introduction

Congratulations on purchasing Edimax’s ET-912 Series
Media Converter. The ET-912 series convert the signals
between two different transmission medium, allowing
user a simple and cost-effective method to migrate
between UTP cable and fiber optic cable.

FCC Warning

The ET-912 Series Media Converters have been tested
and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These
standards are designed to provide reasonable
protection against harmful interference when these
devices are operated in a commercial environment.
These devices generate, use, and can radiate radio
frequency energy and may cause harmful interference
to radio communications unless installed in accordance
with this User’s Guide. Operation of these devices in a
residential area is likely to cause harmful interference
which will make the user responsible for the appropriate
remedial action at his / her own expense.

CE Mark Warning

These are Class B products. In a domestic environment
these products may cause radio interference in which
case the user will need to consider adequate
preventative methods.

1. Checklist

The Package should contain following items:

⎯ Media Converter
⎯ AC-DC Power Adapter
⎯ User’s Guide

Please notify your sales representative immediately if any
items are missing or damaged.

2. Overview

ET-912Series Media Converter is designed to meet the
needs for massive optical fiber network deployment and
able to extend a legacy copper based network via fiber
cable to a maximum distance of up to 100KM.

ET-912Series Media Converter i

s fully compliant with

IEEE 802.3 & 802.3u standards;

built-in Switching
ASIC has turned ET-912Series Media Converter’s
function more like a 2 ports switch than a traditional
converter. User can get all switching benefits such like
traffic segmentation, frames checking & error filtering. In
addition, Link Alarm allow user to monitor &
maintain their critical fiber link more easily and effectively.

The installation & operation procedures of the
ET-912Series Media Converter are simple &
straightforward. Operation status can be monitored
through a set of Diagnostic LED located in the front
panel.

FEATURES

• 10/100Base-TX to 100Base-FX converter

• Store & Forward switching mechanism

• Comply to IEEE 802.3, 802.3u

• MDI/MDIX Auto-Crossover supported

• Auto-Negotiation or Manual mode setting of Speed

& Duplex mode

• LED Indication

o Power, FDX,
o TP 100, TP Link/Activity

o

FX 100, FX Link/Activity

• Link Alarm function

3. Installation

The installation procedure is simple and straightforward.

• Attach fiber cable from the ET-912Series Media
Converter to the fiber network.

• Attach a UTP cable from the 10/100Base-TX
network to the RJ-45 port on the ET-912Series
Media Converter.

• Connect the power adapter to the ET-912Series
Media Converter and check that the Power LED
lights up. The TP Link and FX Link LED will light
when all the cable connections are satisfactory.

100

LINK/
ACT

FX TX

FDX PWR

Fig. 1 ET-912Series Media Converter Front &
Rear Panel

5VDC IN

10/100BASE-TX
Network

SC/ST
Fiber
Network

TX
RX

RX
TX

Fig. 2 Basic Net work Connect i on

10/100BASE-TX

TX RX

4. LED Description

5. Technical Specifications

Standards IEEE 802.3 & IEEE 802.3u
Switching Mechanism

Store & Forward

MAC table 1K Entries
Forward & Filter Rate

10Base-T 14,800 pps

(64 Bytes)

100Base-TX 148,800 pps
LED Power, FDX, TP 100, TP Link/Act,
Fiber 100, Fiber Link/Act

Power DC 5V, 1.6A
Power Consumption

5W

Weight 0.6 Kg
Dimensions

26 X 71 X 94mm

Temperature Operating: 0 ~ 50

o

C

Storage: -20 ~ 60 oC

Humidity 5% ~ 90% RH
Safety UL, CSA
Emission FCC/CE Class B
UTP Cat. 5 UTP cable
Fiber 50/125, 62.5/125, or 100/140

µ

m multimode

8.3/125, 8.7/125, 9/125 or 10/125

µ

m single-mode

6. Rear Panel DIP Switch

Pin 1 Off/On TP Auto-negotiation Enable/Disable
Pin 2 Off/On TP Speed 100M/10M
Pin 3 Off/On TP Duplex Full / Half
Pin 4 Off/On Link Alarm Disable/Enable

Default set OFF from PIN 1 to PIN 4

Please perform Power On reset after modify the Dip
Switch setting.

7. Link Alarm

Link Alarm allow user easily to identify and diagnose the
linking status. If set Link Alarm switch to Enable, UTP and
Fiber port can link up only when both linking conditions
are good. In addition, if any of the fiber or UTP port link
down during operation, the other port will also turn down
link to alert the user. Turn Link Alarm switch to Enable
provide user transparent link indication between two
network devices interconnected by ET-912Series Media
Converter.

If disable the Link Alarm. The UTP and fiber port will link
up base on their individual linking condition. Further, if
fiber port link down during operation, it will not turn down
the UTP port link and vice versa.

Operating Mode

This converter can support switch mode and pure
converter mode which bases on

Switch Mode

A. Link Alarm Disable
B. Link Alarm Enable and TP port link to 10Mbps

Pure Converter Mode

Link Alarm Enable and TP port Link to 100Mbps

Ordering Information,

Multi-mode

ET-912MSC: SC/1310nm/2Km
ET-912MST: ST/1310nm/2Km

Single-mode

ET-912SSC3: SC/1310nm/30Km
ET-912SSC4: SC/1310nm/40Km
ET-912SSC6: SC/1310nm/60Km
ET-912SSC8: SC/1310nm/80Km
ET-912SSCA: SC/1550nm DFB /100Km

Media Converter

10/100BaseTX To 100Base-FX

Media Converter

ET- 912 Series

ET-912MSC
ET-912MST
ET-912SSC3
ET-912SSC4
ET-912SSC6
ET-912SSC8
ET-912SSCA

User’s Guide

V 1.1

LED Color Function

PWR Green Lit when power is available
FX 100 Green Lit when FX port speed is 100M
FX Link/ACT Green

Blink

Lit when fiber link is up
Blink when traffic present

FDX Green Lit when TP port Full Duplex Mode is

enabled
TP 100 Green Lit when TP port speed is 100M
TP Link/ACT Green

Blink

Lit when TP link is up

Blink when traffic present

Media Converter