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Trademarks 

 

CTS is a registered trademark of Connection Technology Systems 
Inc. Contents subject to revision without prior notice. 
 
All other trademarks remain the property of their owners. 
 

Copyright Statement 

 

Copyright 

 Connection Technology Systems Inc. 

 

This publication may not be reproduced as a whole or in part, in 
any way whatsoever unless prior consent has been obtained from 
Connection Technology Systems Inc. 
   

FCC Warning 

 

These devices have been tested and found to comply with the 
limits for a Class A 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 A 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 the following items: 
 

-  IAC-3012 Media Converter 
- User’s 

Guide 

- Installation 

Guide 

 
Please notify your sales representative immediately if any item is 
missing or damaged. 
 
As for power adapters, please refer to Section 7 for more detailed 
information. 
 
 
 
 

2. Overview 

The IAC-3012 Ethernet media converter is designed for industrial 
applications in the harsh environment. IAC-3012 provides 
1x10/100/1000Base-T Ethernet port and 1x100/1000Base-X SFP 
optical port to flexibly meet different network architecture 
requirements. 
 
With an extended operation temperature range of -40 to 75°C and 
ITU-T K.21 enhanced test level up to 6KV surge immunity on the 
RJ-45 copper port, it makes the media converter suitable for 
industrial applications. 

 

 

Major Features: 

 

3. Network Installation 

Please follow the steps described below and refer to Figure 1 and 
2 to complete the network installation. 
 

Attach fiber cable from the Converter to the fiber network. 

Attach a UTP cable from the 10/100/1000Base-T network to 
the RJ-45 port on the media converter. 

Connect the power adapter to the Converter and the Power 
LED will light up. The TP and SFP LEDs will light up as soon 
as if all the cable connections are satisfactory. 

 
 
 
 
 
 
 
 
 
 

 
 

 
 

 
 
 
 
 
 

 
 

 
 
 
 
 
 

 

 

 

4. Terminal Blocks 

Terminal Block 1 Power Supply: 

Two sets of power inputs 

ranging from DC 12V~48V, P1 and P2, are offered for power 
redundancy purpose. You can use both pairs of power supply for 
redundancy purpose or use either one pair of power supply on this 
terminal block and AC external power supply to create redundant 
setup. The redundant power supply will take over seamlessly 
when one power source is down to protect your device or network 
from the loss of power.

 

When you use only one power supply, no 

redundant power will be available. Please refer to the following 
figure to insert the negative/positive DC wires into the V-/V+ 
terminals as indicated. 
 

 

Figure 3. Terminal Block 1 Top View 

 
Terminal Block 2 Fault Alarm:

 One pair of fault connection on 

the terminal block 2 is used to connect alarm devices such as 
speakers or LEDs to alert users when the port link disconnects 
and power failure occurs. (NOTE: Alarm Contact capacity 
1A@30V) 
 
 
 
 
 
 
 
 
 
 
 

-

Provide one Gigabit RJ-45 Copper Port & one SFP Port 
100/1000Base-X 

-

Support 9K Jumbo Frames 

-

6KV Surge Immunity on RJ-45 Copper Port (K.21*) 

-  Dual Power Input (12~48VDC)   
-  Relay Output for Fault Alarm Notification (Power, Ports) 
- Aluminum 

Housing 

- Operating 

Temperature 

-40ºC~75ºC 

P1 

Figure 2. IAC-3012 Media Converter Top Panel 

Use flat-head 
screwdriver to   
loosen and tighten
the screw. 

Figure 1. IAC-3012 Media   

Converter Front Panel 

Use flat-head 
screwdriver to   
loosen and tighten
the screw.

Figure 4. Terminal 
Block 2 Side View 

RJ-45 Port 

Fiber Port 

Terminal Block 2 
(For Relay Alarm) 

Terminal Block 1 
(For Power Input) 

Chassis Ground 

-

+

-

+

P2 

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