Comnet CNFE2MC2C-M User Manual

INSTALLATION AND OPERATION MANUAL

CNFE2MC2C[/M]

10/100MBPS ETHERNET ELECTRICAL TO OPTICAL
MEDIA CONVERTER WITH CONTACT CLOSURE RELAY

v1.0 Jan 2012

The ComNet™ CNFE2MC2C[/M] Ethernet 10/100Mbps Ethernet media converter is
designed to transmit and receive 10/100 Mbps data and bi-directional contact relay
over multimode or single mode optical fiber using sold-separately Small Form-Factor
Pluggable (SFP) modules to select distance and connector type. The electrical interface
will Auto-Negotiate to a 10 Mbps, or 100 Mbps Ethernet rate without any adjustments.
The optical interface operates at a 100 Mbps Ethernet rate. It can be one-to-one
mapped over Ethernet or controlled via a PC. Included is a driver that allows the
CNFE2MC2C[/M] to read or write contact information from a PC-based application.
A software utility allows customers to search for this device when installed on the
network. The CNFE2MC2C[/M] supports Windows® Discovery.

Open source com0com TCP/IP protocol is supported for any customer PC applications
to communicate with the units over the Ethernet. The software utility allows customers
to create virtual com ports for each module installed on the same subnet.

These media converters are environmentally hardened to operate in extreme
temperatures. LED indicators are provided to determine equipment operating status.

The CNFE2MC2C[/M] has a normally-open Fiber optic link alarm relay output.

The CNFE2MC2C[/M] small package size allows the unit to be installed in those
locations where space is at a premium, either wall or rack-mounted, or may be DIN-rail
mounted by the addition of ComNet model DINBKT1 adaptor plate.

INSTALLATION AND OPERATION MANUAL CNFE2MC2C[/M]

Contents

Hardware description 3

Assign IP Address to a Module 5

Using Module as Remote Contact over Ethernet 12

Install ComNet Software Utilities 13

Install the com2com 13

Install the com2tcp 17

Install ComNet Module Configuration software 18

Using the Module through a Virtual COM port (VCP) 20

Manual VCP Configuration 23

Verify VCP Operation 25

Using TeraTerm Telnet Connection 26

Using Windows UPnP to Discover
Your Contact over Ethernet modules 27

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Hardware description

The ComNet™ CNFE2MC2C[/M] contact over Ethernet module supports up to 2 bi-directional
contact closures over Cat5/6 cable, or 1 or 2 optical fibers. All configurations are done through
its web server. The CNFE2MC2C[/M] has two contact inputs and two contact outputs, which
communicate through the network. Distances depend on which SFP (Small Form Pluggable)
module is used.

Mechanical Drawing of CNFE2MC2C/M MODULE

I

I

Mechanical Drawing of CNFE2MC2C MODULE

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INSTALLATION AND OPERATION MANUAL CNFE2MC2C[/M]

The contact connector pin-out is as below:

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CNFE2MC2C[/M] Module Input/Output Mapping

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Assign IP Address to a Module

A unique IP address has to be assigned to each contact over Ethernet application. You
can connect one at a time to change the default IP address. The default IP address of the
CNFE2MC2C[/M] is: 192.168.10.1.

Connect the module on to your local Ethernet network that your PC is connected to, as Figure 1
below, and power on the unit.

Figure 1 – Local Ethernet Application Diagram

Following the steps below to set up your PC IP address to the same subnet as the modules:

» Disable the machine’s wireless network connection and any other internet connections

that could interfere with the network being created. Select the Internet Protocol (TCP/
IP) connection within the Local Area Connection Properties from start, Control Panel, and
Network Connections. Then click Properties.

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Figure 2 – Local Area Connection Properties Dialog Box

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» Next, manually set your PC IP address to 192 .168 .10.100 and your subnet mask to

255.255.255.0, as shown below.

Figure 3 – Internet Protocol (TCP/IP) Properties Dialog Box

» Click OK to finish the setting.

» Open the browser on your PC, and type in 19 2.16 8.10 .100 to reach the Media Converter Log In

page (Figure 4).

» The default User Name and Password are both admin. Log in to the Media Converter Home

Page (Figure 5) as shown.

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Figure 4 – CNFE2MC2C[/M] Log in Page

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Figure 5 – CNFE2MC2C[/M] Home Page

» Click on the Configuration link on the left of the screen. Change the IP address to an IP

address with subnet appropriate for your network. In the following examples an IP address in
subnet 192.168.10.xxx will be used. Configure the IP address to 192 .168 .10. 2 as shown in the
Module Configuration Page.

» Click OK.

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Figure 6 – CNFE2MC2C[/M] Configuration Page

» Log in to the module again using the new IP address 192 .168 .10. 2. If an IP address in a

different subnet was used, be sure to change the PC’s network address to an IP address in the
appropriate subnet.

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