MISCELLEOUS
KITS AND ACCESSORIES
©
2018 Lennox Industries Inc.
Dallas, Texas, USA
507676-01
8/2018
Supersedes 9/2017
INSTALLATION INSTRUCTIONS FOR ETHERNET CONVERTER KIT (76M77)
(Used with the L Connection Network)
THIS MANUAL MUST BE LEFT WITH THE OWNER
FOR FUTURE REFERENCE
WARNING
Installation and service must be performed by a li censed
professional HVAC installer (or equivalent) or a service
agency.
Shipping and Packing List
Package 1 of 1 contains:
1 - Ethernet converter
1 - Ethernet cable
1 - RS-232 serial cable
1 - Power transformer
Application
The Ethernet Converter Kit is required to interface
between the L Connection® network and an Ethernet local
area network (LAN). This allows L Connection software to
access L Connection products through an Ethernet port
instead of connecting directly or through a modem. See
gure 1.
The L Connection network provides direct digital
communication to a single or network of L Connection
ETHERNET CONVERTER KIT
(For L Connection Network)
products such as IMC (M1−x), M2 and M3 Prodigy®, NTC
rooftop unit controllers, BC building controllers and NCP
network manager.
NOTE: Unit controller and network control panel software
are ordered separately.
There are two available options (Option 1 or 2) for
setting up this device that are discussed further on in this
instruction.
LED Indicators
Table 1. LEDs
LED Label Function
POWER Indicates unit has power.
When blinking on and off in a steady manner,
this indicates the Ethernet Converter is working
WORK
232TX
232RX
485TX
485RX
properly. If LED is on or off for a long period,
then there is an error and it is recommended
to power off the Ethernet Converter and then
power it up to resolve the communication error.
Blinking LED indicates that the Ethernet
Converter is sending RS232 data.
Blinking LED indicates that the Ethernet
Converter is receiving RS232 data.
Blinking LED indicates that the Ethernet
Converter is sending RS485 data.
Blinking LED indicates that the Ethernet
Converter is receiving RS485 data.
Figure 1. Ethernet Converter Kit
Congure Ethernet Converter
Default Settings
Table 2. Default Settings
User Name admin
Password admin
IP Address 192.168.0.7
Subnet Mast 255.255.255.0
Default Gateway 192.168.0.1
Default Work Mode TCP Server
Default Local Port 23
Baud Rate 115200
Parity Bit/Data Bit/Stop Bit None / 8 / 1
OPTION 1
The following procedure is for Windows 7. Procedures for
later Windows versions may differ.
1. Connect the provided Ethernet cable between your
computer and Ethernet Converter.
2. Connect the provided AC adapter to the Ethernet
converter and plug AC adapter into wall outlet.
3. From the computer being used, click Start > Control
Panel and double-click on Networking and Sharing
Center.
4. Double-click on Change adapter settings.
5. Double-click on Local Area Connection.
6. Under Local Area Connection Status click on
Properties.
7. Double-click on Internet Protocol Version 4 (TCP/
IPv4).
8. Select Use the following IP address. Enter the
information as shown in gure 3.
NOTE: Write down your original settings so you can
restore them back to their original conguration
once you are done with this procedure.
Figure 3. Internet Protocol Version 4 Properties
9. Click OK to continue.
10. Go to your Internet browser and type http://192.168.0.7
to access the device’s home web page. Type in the
User Name and Password (admin and admin).
Figure 2. Local Area Connection Properties
Figure 4. Login Screen
2
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