LOYTEC L-Gate User manual

L-Gate™
CEA-709/BACnet Gateway
User Manual
LOYTEC electronics GmbH

Contact
LOYTEC
Blumengasse 35
A-1170 Vienna
AUSTRIA/EUROPE
[email protected]
http://www.loytec.com
Version 3.2
Document 88072407
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Contents
1Introduction ................................................................................................11
1.1 Overview ............................................................................................................11
1.2 Scope...................................................................................................................12
2Quick-Start Guide ......................................................................................13
2.1 Hardware installation ....................................................................................... 13
2.2 Configuration of the L-Gate.............................................................................14
2.2.1 IP Configuration on the Console .............................................................14
2.2.2 IP Configuration via the Web Interface...................................................15
2.2.3 BACnet Configuration.............................................................................16
2.3 Gateway Configuration with LNS-based Tools..............................................17
3Hardware Installation................................................................................18
3.1 Enclosure ...........................................................................................................18
3.1.1 LGATE-900.............................................................................................18
3.2 Product Label ....................................................................................................19
3.3 Mounting............................................................................................................19
3.4 LED signals........................................................................................................19
3.4.1 Power LED ..............................................................................................19
3.4.2 Status LED...............................................................................................19
3.4.3 MSTP Activity LED................................................................................19
3.4.4 FT Activity LED......................................................................................19
3.4.5 Ethernet Link LED...................................................................................20
3.4.6 Ethernet Activity LED.............................................................................20
3.4.7 CN/IP LED ..............................................................................................20
3.4.8 BACnet/IP LED.......................................................................................20
3.4.9 Wink Action.............................................................................................21
3.4.10 Network Diagnostics................................................................................21
3.5 Status Button .....................................................................................................21
3.6 DIP Switch Settings...........................................................................................21
3.7 Terminal Layout and Power Supply ............................................................... 22
3.8 Wiring ................................................................................................................22
4Web Interface .............................................................................................24
4.1 Device Information and Account Management .............................................24
4.2 Device Configuration ........................................................................................26
4.2.1 System Configuration ..............................................................................26
4.2.2 Backup and Restore.................................................................................27

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4.2.3 Port Configuration................................................................................... 28
4.2.4 IP Configuration...................................................................................... 28
4.2.5 CEA-709 Configuration.......................................................................... 30
4.2.6 CEA-852 Device Configuration.............................................................. 30
4.2.7 BACnet Configuration ............................................................................ 32
4.2.8 BACnet/IP Configuration........................................................................ 32
4.2.9 MS/TP Configuration.............................................................................. 33
4.2.10 BACnet BDT (Broadcast Distribution Table)......................................... 34
4.2.11 E-Mail Configuration.............................................................................. 34
4.2.12 Data Points .............................................................................................. 35
4.2.13 Trend....................................................................................................... 37
4.2.14 Scheduler................................................................................................. 37
4.2.15 Calendar .................................................................................................. 39
4.2.16 Alarm....................................................................................................... 40
4.3 Device Statistics ................................................................................................ 41
4.3.1 System Log.............................................................................................. 41
4.3.2 IP Statistics.............................................................................................. 42
4.3.3 CEA-852 Statistics.................................................................................. 43
4.3.4 Enhanced Communications Test............................................................. 43
4.3.5 CEA-709 Statistics.................................................................................. 44
4.3.6 BACnet MS/TP Statistics........................................................................ 45
4.3.7 Scheduler Statistics Page......................................................................... 46
4.3.8 Alarm Log Page ...................................................................................... 46
4.4 Reset, Contact, Logout ..................................................................................... 47
5Concepts ......................................................................................................48
5.1 CEA-709/BACnet Gateway ............................................................................. 48
5.2 Data Points ........................................................................................................ 48
5.2.1 Overview................................................................................................. 48
5.2.2 Timing Parameters .................................................................................. 49
5.2.3 Default Values......................................................................................... 49
5.2.4 Persistency............................................................................................... 50
5.2.5 Behavior on Value Changes.................................................................... 50
5.2.6 Custom Scaling ....................................................................................... 50
5.2.7 System Registers ..................................................................................... 51
5.2.8 User Registers ......................................................................................... 51
5.2.9 Math Objects........................................................................................... 51
5.3 Connections ....................................................................................................... 51
5.4 AST Features .................................................................................................... 52
5.4.1 Alarming.................................................................................................. 52

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5.4.2 Historical Alarm Log...............................................................................53
5.4.3 Scheduling ...............................................................................................53
5.4.4 Trending...................................................................................................56
5.4.5 E-Mail......................................................................................................56
5.5 CEA-709 Technology ........................................................................................57
5.5.1 CEA-709 Data Points...............................................................................57
5.5.2 Static Interface Changes ..........................................................................58
5.5.3 Limitations for Local CEA-709 Schedulers.............................................58
5.5.4 Limitations for CEA-709 Alarm Servers.................................................58
5.5.5 Limitations for Local CEA-709 Trends...................................................59
5.6 BACnet Technology ..........................................................................................59
5.6.1 BACnet Data Points.................................................................................59
5.6.2 BACnet Alarming....................................................................................59
5.6.3 BACnet Schedulers and Calendars..........................................................60
5.6.4 BACnet Trend Logs.................................................................................60
5.7 Automatic Generation of Connections ............................................................61
6The L-Gate Configurator ..........................................................................62
6.1 Installation .........................................................................................................62
6.1.1 Software Installation................................................................................62
6.1.2 Registration as a Plug-In..........................................................................62
6.1.3 Operating Modes .....................................................................................64
6.2 Data Point Manager.......................................................................................... 64
6.2.1 Folder List................................................................................................65
6.2.2 Network Port Folders...............................................................................66
6.2.3 Data Point List.........................................................................................66
6.2.4 Property View..........................................................................................67
6.2.5 Managing Multistate Maps......................................................................68
6.2.6 CEA-709 Properties.................................................................................69
6.2.7 BACnet Properties...................................................................................70
6.3 Project Settings.................................................................................................. 71
6.3.1 General.....................................................................................................71
6.3.2 Data Point Naming Rules.........................................................................72
6.3.3 CEA-709 Settings....................................................................................72
6.3.4 AST Settings............................................................................................73
6.3.5 BACnet Settings ......................................................................................75
6.4 Workflows for the L-Gate ................................................................................75
6.4.1 Involved Configuration Files...................................................................76
6.4.2 Configure with LNS ................................................................................76
6.4.3 Configure without LNS ...........................................................................77

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6.4.4 Configure without LNS Using Bindings................................................. 77
6.4.5 Replace an L-Gate................................................................................... 79
6.4.6 Configure from BACnet.......................................................................... 79
6.5 Adding L-Gate .................................................................................................. 80
6.6 Replace an L-Gate ............................................................................................ 83
6.7 Using the L-Gate Configurator ....................................................................... 86
6.7.1 Starting as an LNS Plug-In...................................................................... 86
6.7.2 Starting Stand-Alone............................................................................... 86
6.7.3 Uploading the Configuration................................................................... 87
6.7.4 Scanning for Network Variables............................................................. 88
6.7.5 Importing Network Variables.................................................................. 89
6.7.6 Scanning NVs online from the Network................................................. 90
6.7.7 Select and Use Network Variables.......................................................... 92
6.7.8 Change the NV Allocation...................................................................... 92
6.7.9 Create Static NVs.................................................................................... 93
6.7.10 Create External NVs................................................................................ 94
6.7.11 Generate BACnet Objects....................................................................... 96
6.7.12 Create User Registers.............................................................................. 97
6.7.13 Configuration Download......................................................................... 98
6.7.14 Build XIF for Port Interface.................................................................... 99
6.7.15 Enable Legacy NM Mode ....................................................................... 99
6.7.16 Upload Dynamic NVs from Device ...................................................... 100
6.7.17 Upload the System Log......................................................................... 100
6.8 Advanced CEA-709 Configuration ............................................................... 101
6.8.1 Working with Configuration Properties................................................ 101
6.8.2 Install Unconfigured Devices................................................................ 103
6.8.3 Using Feedback Data Points.................................................................. 103
6.8.4 Working with UNVTs, UCPTs............................................................. 104
6.9 Connections ..................................................................................................... 104
6.9.1 Create a New Connection...................................................................... 104
6.9.2 Create Connections from a CSV File.................................................... 105
6.9.3 Modify Connections.............................................................................. 106
6.9.4 Connection Overview............................................................................ 106
6.10 BACnet Configuration ................................................................................... 107
6.10.1 Scan for BACnet Objects...................................................................... 107
6.10.2 Import from EDE File ........................................................................... 108
6.10.3 Use Imported BACnet Objects.............................................................. 108
6.10.4 Edit a Client Mapping ........................................................................... 109
6.10.5 Create Server Object ............................................................................. 109

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6.10.6 Map other Properties than Present_Value..............................................110
6.10.7 Enable International Character Support.................................................111
6.11 E-Mail Templates............................................................................................112
6.11.1 Create an E-Mail Template....................................................................112
6.11.2 Trigger E-Mails......................................................................................113
6.11.3 Attachments...........................................................................................114
6.11.4 Limit E-Mail Send Rate.........................................................................115
6.12 Local Schedule and Calendar ........................................................................115
6.12.1 Create a Calendar...................................................................................115
6.12.2 Create Calendar Pattern .........................................................................116
6.12.3 Create a Local Scheduler.......................................................................116
6.12.4 Configure Scheduled Data Points..........................................................117
6.12.5 Configure Daily Schedules....................................................................118
6.12.6 Configure Exception Days.....................................................................120
6.12.7 Configure Embedded Exceptions ..........................................................121
6.12.8 Configure Control Data Points ..............................................................122
6.12.9 Using the SNVT_tod_event...................................................................122
6.12.10 Using the Local Scheduler ...............................................................123
6.13 Local Alarming................................................................................................123
6.13.1 Create an Alarm Server..........................................................................123
6.13.2 Create an Alarm Condition....................................................................124
6.13.3 Deliver Alarms via E-Mail.....................................................................126
6.13.4 Create an Alarm Log..............................................................................126
6.14 Local Trending ................................................................................................127
6.14.1 Create a Local Trend..............................................................................127
6.14.2 Configure Trended Data Points .............................................................128
6.14.3 Trend Triggers.......................................................................................129
6.14.4 Download Trend Data in CSV Format ..................................................130
6.14.5 Deliver Trend Data via E-Mail..............................................................130
6.15 Remote AST Objects.......................................................................................131
6.15.1 Remote Scheduler and Calendar............................................................131
6.15.2 Alarm Clients.........................................................................................132
6.16 Math Objects ...................................................................................................133
6.16.1 Create a Math Object.............................................................................133
6.16.2 Editing a Math Object............................................................................134
6.17 Mapping CEA-709 and BACnet Schedules ..................................................135
6.17.1 Mapping and Limitations.......................................................................135
6.17.2 Map from CEA-709 to BACnet.............................................................136
6.17.3 Map from BACnet to CEA-709.............................................................137

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6.17.4 Create One-Way Mappings................................................................... 138
7Operating Interfaces ................................................................................139
7.1 Common Interface.......................................................................................... 139
7.1.1 Schedule and Calendar XML Files ....................................................... 139
7.1.2 Trend Log CSV File.............................................................................. 139
7.1.3 Alarm Log CSV File ............................................................................. 141
7.2 CEA-709 Interface.......................................................................................... 141
7.2.1 NV Import File...................................................................................... 141
7.2.2 Node Object .......................................................................................... 142
7.2.3 Extended Node Object Interface ........................................................... 143
7.2.4 Real-Time Keeper Object...................................................................... 144
7.2.5 Calendar Object..................................................................................... 144
7.2.6 Scheduler Object................................................................................... 144
7.2.7 Clients Object........................................................................................ 144
7.2.8 Gateway Objects ................................................................................... 144
7.3 BACnet Interface............................................................................................ 144
7.3.1 Device Object........................................................................................ 144
7.3.2 Client Mapping CSV File...................................................................... 147
7.3.3 EDE Export of BACnet Objects............................................................ 148
8Network Media .........................................................................................149
8.1 FT..................................................................................................................... 149
9L-Gate Firmware Update ........................................................................150
9.1 Firmware Update via the Configurator........................................................ 150
9.2 Firmware Update via the Console................................................................. 152
10 Troubleshooting........................................................................................154
10.1 Technical Support .......................................................................................... 154
10.2 Statistics on the Console................................................................................. 154
10.2.1 Connecting to the Console .................................................................... 154
10.2.2 Reset Configuration (factory defaults).................................................. 155
10.2.3 Device Statistics Menu.......................................................................... 155
11 Application Notes .....................................................................................157
11.1 The LSD Tool.................................................................................................. 157
11.2 Use of Static, Dynamic, and External NVs on a Device .............................. 157
12 Firmware Versions ...................................................................................158
13 Specifications ............................................................................................159
13.1 LGATE-900..................................................................................................... 159
13.1.1 Physical Specifications.......................................................................... 159
13.1.2 Resource Limits..................................................................................... 159

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14 Revision History .......................................................................................161

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Abbreviations
100BaseT............................100 Mbps Ethernet network with RJ-45 plug
Aggregation........................Collection of several CEA-709 packets into a single CEA-852
packet
AST ....................................Alarming, Scheduling, Trending
BACnet............................... Building Automation and Control Network
CC.......................................Configuration Client, also known as CN/IP Device
CEA-709.............................Protocol standard for LONWORKS networks
CEA-852.............................Protocol standard for tunneling CEA-709 packets over IP
channels
CN ......................................Control Network
CN/IP.................................. Control Network over IP
CN/IP Channel ...................logical IP channels that tunnels CEA-709 packets according
CEA-852
CN/IP packet ......................IP packet that tunnels one or multiple CEA-709 packet(s)
COV ...................................change-of-value
CR.......................................Channel Routing
CS.......................................Configuration Server that manages CEA-852 IP devices
DHCP ................................. Dynamic Host Configuration Protocol, RFC 2131, RFC 2132
DNS....................................Domain Name Server, RFC 1034
DST ....................................Daylight Saving Time
GMT................................... Greenwich Mean Time
IP ........................................Internet Protocol
LSD Tool............................LOYTEC System Diagnostics Tool
MAC...................................Media Access Control
MD5 ...................................Message Digest 5, a secure hash function, see Internet RFC
1321
MS/TP ................................ Master/Slave Token Passing (this is a BACnet data link layer)
NAT....................................Network Address Translation, see Internet RFC 1631
NV......................................Network Variable
RTT ....................................Round-Trip Time
SMTP .................................Simple Mail Transfer Protocol
SNTP..................................Simple Network Time Protocol
SNVT .................................Standard Network Variable Type
SSL.....................................Secure Socket Layer
TLS.....................................Transport Layer Security
UI........................................User Interface
UNVT.................................User-Defined Network Variable Type
UTC....................................Universal Time Coordinated
XML...................................eXtensible Markup Language

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1 Introduction
1.1 Overview
The L-Gate is a high performance, reliable and secure network infrastructure component
that provides data access to a defined set of data points, which are mapped from one
control network technology to another control network technology. In particular, the CEA-
709/BACnet Gateway (LGATE-900) implements mappings between a set of CEA-709
network variables (NVs) and a set of standard BACnet server objects. Which NVs are
mapped to BACnet objects can be configured by an LNS plug-in or stand-alone
configuration software. Easy to understand diagnostic LEDs allow installers and system
integrators to install and troubleshoot this device without expert knowledge and dedicated
troubleshooting tools. The LGATE-900 is equipped with a 100-BaseT Ethernet port (IP),
an FT-10 port (CEA-709), and an RS-485 port (MS/TP). The device is fully compliant with
ANSI/CEA-709 and ENV14908, ANSI/ASHRAE-135-2004 and ISO 16484.
On the CEA-709 side of the L-Gate, there can be up to 1000 NVs. The NVs can be bound
in the CEA-709 network or operated as “external NVs”. External NVs are polled or
explicitly written to without allocating static or dynamic NVs on the L-Gate. In this case,
address information is supplied by the configuration software by importing e.g. a CSV file.
As communications media on the CEA-709 side, the L-Gate supports either the FT-10
channel or an CEA-852 channel (IP channel over the Inranet/Internet). Which of the two
interfaces is used is configurable. The CEA-852 interface can be used behind NAT routers
and firewalls, which allows seamless integration in already existing Intranet networks. It
supports DHCP even with changing IP addresses in an Intranet environment.
The BACnet objects on the L-Gate can be of the type analog input/output, binary
input/output, and multistate input/output. There can be up to 750 of such objects. They are
mapped to NVs as configuraed by the Gateway configuration software. This software is
able to automatically create BACnet object as counterparts to NVs. In particular, BACnet
properties such as Object_Name, Description, Units, Max_Pres_Value, Min_Pres_Value,
Resolution, Number_Of_States, and State_Text are derived from the Standard Network
Variable Types (SNVTs)1. Further, the automatically assigned default values can be edited
in the configuration software. BACnet properties updated during run-time by the gateway
are Present_Value, Status_Flags, Reliability, Out_Of_Service. Structured NVs are mapped
to one BACnet object per structure member. The BACnet server objects are accessible
from the BACnet network. In addition, the L-Ggate also includes BACnet client
functionality. For each server object a “client mapping” can be defined. These mappings
specify other BACnet objects on the network where the L-Gate can read values from (poll
or COV subscribe) or write updates to.
1This is based on the recommendation in CEN/TS 15231:2006.

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The built-in Web server allows convenient device configuration through a standard Web
browser such as the Internet Explorer or Firefox. The Web interface also provides statistics
information for system installation and network troubleshooting.
In firmware 1.2 and up, the L-Gate supports user-defined network variable types (UNVTs)
as dynamic or external NVs, and can access configuration properties (CPs) on other
devices through file transfer. To transfer CPs it supports both the LonMark file transfer and
the read memory access method. For CPs, the standard (SCPTs) and user-defined (UCPTs)
are supported. All of those new CEA-709 data points can be mapped automatically to
BACnet objects.
In firmware versions from 3.0 and up, the L-Gate also supports Trendlog, Schedule and
Notification Class objects. These objects can be used to operate on any of the basic
BACnet objects, which are mapped to CEA-709 NVs. This allows the L-Gate to provide
trend data of one or more NVs, schedule NVs and BACnet objects, and report alarms based
on NV conditions directly in BACnet. There can be up to 100 scheduler and calendar
objects, up to 32 notification class objects, and up to 100 trend log objects with an
aggregated total log buffer size of 2MB.
Furthermore, the L-Gate provides LonMark scheduler/calendar objects, which can directly
schedule NVs or be translated to BACnet schedules/calendars. For alarm conditions, the L-
Gate can be configured to send E-Mails to pre-defined addresses.
The L-Gate is used for:
•connecting BACnet and CEA-709 networks,
•communicating on BACnet with either BACnet/IP or BACnet/MSTP,
•communicating on CEA-709 with either FT-10 or CEA-852 (IP channel on the
Intranet/Internet),
•accessing ANSI/CEA-709 network variables (NVs) and configuration properties (CPs)
in BACnet,
•supporting standard (SNVT, SCPT) and user-defined (UNVT, UCPT) types,
•accessing BACnet objects in ANSI/CEA-709 networks,
•scheduling BACnet objects and ANSI/CEA-709 network variables,
•translating BACnet schedules/calendars to LonMark schedules/calendars,
•trending BACnet objects,
•generating alarms using intrinsic reporting on BACnet objects,
•sending E-Mails on alarms or scheduled events.
1.2 Scope
This document covers L-Gate devices with firmware version 3.2 and the L-Gate
Configurator Software version 3.2. See Chapter 12 for differences between the different
L-Gate firmware versions.

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2 Quick-Start Guide
This Chapter shows step-by-step instructions on how to configure the L-Gate for a simple
network architecture, mapping CEA-709 network variables to BACnet server objects.
2.1 Hardware installation
Connect power (12-35 VDC or 12-24 VAC), the CEA-709 network, and the Ethernet cable
as shown in Figure 1. More detailed instructions are shown in Chapter 3.
Important: Do not connect terminal 17 to earth ground!
Ethernet
Power Supply
Figure 1: Basic Hardware Installation
If the L-Gate is connected to a BACnet MS/TP network, the MS/TP network segment must
be properly terminated with an LT-04 network terminator connected at each of the two
ends of the segment media.

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2.2 Configuration of the L-Gate
The L-Gate can be configured via a console interface or via the Web interface. To
configure the L-Gate, the following steps have to be performed:
1. Setup IP configuration (see Sections 2.2.1 and 2.2.2).
2. Setup BACnet configuration (see Section 2.2.3).
3. Setup gateway configuration (see Section 2.3).
Note: This setup procedure assumes the use of the IP interface.
2.2.1 IP Configuration on the Console
Use a PC terminal program with the communication settings set to 38,400 bps / 8 data bits /
no parity / 1 stop bit / no handshake. To connect COM1 of the PC to the Console on the
device, use a standard null-modem cable with full handshaking. Power up the device or
press Return if the device is already running. The following menu should appear on the
terminal:
Device Main Menu
================
[1] Show device information
[2] Serial firmware upgrade
[3] System configuration
[4] CEA-709 configuration
[5] IP configuration
[6] CEA-852 device configuration
[7] BACnet configuration
[8] Reset configuration (factory defaults)
[9] Device statistics
[a] Data Points
[0] Reset device
Please choose:
Figure 2: Device Main Menu
Select ‘5’ from the device main menu and enter the IP address, netmask, and gateway
address. Note that you must use different IP addresses if you are using multiple IP devices
in your setup.
IP Configuration Menu
=====================
[1] DHCP : disabled
[2] IP Address : 192.168.1.254
[3] IP Netmask : 255.255.255.0
[4] IP Gateway : 192.168.1.1
[5] Hostname : new
[6] Domainname : <unset>
[7] DNS Servers : <unset>
[9] MAC Address : 00:0A:B0:01:0C:9F (factory default)
[0] NTP Servers : <unset> (out-of-sync)
[b] Link Speed & Duplex : Auto Detect
[q] Quit without saving
[x] Exit and save
Please choose:
Figure 3: Enter basic IP settings.
Press ‘x’ to save the IP settings and reset the device with the main menu item ‘0’ in order to
let the new IP settings take effect.

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Important! The default IP address 192.168.1.254 is only set for configuration access. It must be
changed in order to make the device functional.
2.2.2 IP Configuration via the Web Interface
Optionally to using the console interface one can also use the Web interface to configure
the client device. In a Web browser enter the default IP address 192.168.1.254 of the
L-Gate. Note that if your PC has an IP address in a subnet other than 192.168.1.xxx please
open a command tool and enter the following route command to add a route to the L-Gate.
To Add a Route to the Device
1. Windows START ÆRun
2. Enter ‘cmd’ an click OK.
3. In the command window enter the command line
route add 192.168.1.254 %COMPUTERNAME%
4. Then open your Web browser and type in the default IP address 192.168.1.254.
Figure 4: Example Start Screen
5. Click on Config in the left menu. You will be asked to enter the administrator
password in order to change the IP settings. Enter ‘admin’ and select Login.

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Figure 5: Enter admin as the default administrator password.
6. The Config menu opens. Click on Port Config and change to the tab Ethernet. The
TCP/IP settings are selected as shown in Figure 6. Enter the IP address, the IP
netmask, and IP gateway for this device.
Figure 6: Enter IP address and gateway.
7. Press Save Settings and then reset the device by selecting Reset in the highlighted
text. This changes the IP settings of the device.
2.2.3 BACnet Configuration
To configure the BACnet interface, at least the Device ID and the Device Name must be
configured (see Figure 7).

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Figure 7: BACnet Device Configuration
The device ID corresponds to the instance number of the BACnet device object. It must be
a unique ID on the BACnet internetwork. Also the Device Name must be a unique name on
the BACnet internetwork.
By default the BACnet/IP data link layer is used. If the L-Gate shall be used with the
BACnet MS/TP data link layer, please refer to Section 4.2.7 for further information.
2.3 Gateway Configuration with LNS-based Tools
Install the L-Gate Configurator software from the setup.exe. This file can be downloaded
from www.loytec.com. In your LNS-based tool register the L-Gate Configurator as an LNS
plug-in.
The detailed guide to configuring the L-Gate and downloading the configuration can be
found in section 6.4.2 (Configure with LNS).

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3 Hardware Installation
3.1 Enclosure
3.1.1 LGATE-900
The L-Gate enclosure is 6 TE (1 TE = 17.5 mm) wide for DIN rail mounting, following
DIN 43 880 (see Figure 8).
4 5 6
Status Button
and LED
105
off
on
1 2 3 45 6 7
DIP Switch
6
0
55
Serial Number Unique Node IDs
Order Number
85
Console
Connector Power LED
Ethernet/EIA709
BACnet Status
LEDs
1 2 3
Ethernet
100Base-T
Ethernet
MAC Address
11
15 16 17
Figure 8: L-Gate Enclosure (dimensions in mm)

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Version 3.2 LOYTEC electronics GmbH
3.2 Product Label
The product label on the side of the L-Gate contains the following information (see Figure
8):
•L-Gate order number with bar-code (e.g., LGATE-900),
•serial number with bar-code (Ser#),
•unique node ID and virtual ID of each port (NID1, VID1) with bar-code,
•Ethernet MAC ID with bar-code (MAC1).
Unless stated otherwise, all bar codes are encoded using “Code 128”. An additional label is
also supplied with the L-Gate for documentation purposes. A virtual ID (VID) is a Node ID
on the IP channel.
3.3 Mounting
The device comes prepared for mounting on DIN rails following DIN EN 50 022. The
device can be mounted in any position. However, an installation place with proper airflow
must be selected to ensure that the L-Gate’s temperature does not exceed the specified
range (see Chapter 13).
3.4 LED signals
3.4.1 Power LED
The L-Gate power LED lights up green when power is supplied to terminals 15, 16, and 17.
3.4.2 Status LED
The L-Gate is equipped with a red status LED (see Figure 8). This LED is normally off.
During boot-up the status LED is used to signal error conditions (red). If the fall-back
image is executed the status LED flashes red once every second.
3.4.3 MSTP Activity LED
The MS/TP port has a three-color MSTP Activity LED (see Figure 8). Table 2 shows the
different LED patterns of the port and their meaning. A permanent color reflects a state.
Flicker is for 25 ms when there is activity on the MS/TP data link layer.
Behavior Description Comment
GREEN permanently,
flicker off Multi-Master, token ok, flicker when traffic Normal condition on a multi-master MS/TP network
ORANGE flicker Sole master, flicker when traffic Normal condition on a single-master
MS/TP network
RED permanent, flicker
GREEN Token lost state, flicker when transmit attempt Cable might be broken.
RED flash fast Transmission or receive errors. This hints at bad cabling.
Table 1: MS/TP Activity LED Patterns
3.4.4 FT Activity LED
The FT port on the L-Gate has a three-color LED (green, red, and orange, see Figure 8).
Table 2 shows different LED patterns of the port and their meaning.

L-Gate User Manual 20 LOYTEC
Version 3.2 LOYTEC electronics GmbH
Behavior Description Comment
GREEN flashing fast Traffic
GREEN flashing at 1Hz L-Gate is unconfigured
RED permanent Port damaged
RED flashing fast Traffic with high amount of errors
RED flashing at 1 Hz
(all ports) Firmware image corrupt Please upload new firmware.
ORANGE permanent Port disabled e.g. using LSD Tool
ORANGE flashing fast Traffic on port configured as management port e.g. using LSD Tool
Table 2: CEA-709 Activity LED Patterns
3.4.5 Ethernet Link LED
The Ethernet Link LED lights up green whenever an Ethernet cable is plugged-in and a
physical connection with a switch, hub, or PC can be established.
3.4.6 Ethernet Activity LED
The Ethernet Activity LED lights up green for 6 ms whenever a packet is transmitted or
received or when a collision is detected on the network cable.
3.4.7 CN/IP LED
The CNIP LED is a three color LED that indicates different operating states of the L-
Gate’s CEA-852 device.
Green: The CEA-852 device is fully functional and all CEA-852 configuration data
(channel routing info, channel membership list, send list) are up-to-date.
Green flicker: If a valid CEA-709 packet is received or transmitted over the IP channel, the
CNIP LED turns off for 50 ms. Only valid CEA-709 IP packets sent to the IP address of
the L-Gate can be seen. Stale packets or packets not addressed to the L-Gate are not seen.
Yellow: The CEA-852 device is functional but some configuration data is not up-to-date
(device cannot contact configuration server but has configuration data saved in Flash
memory)
Red: The CEA-852 device is non-functional because it was rejected from the CEA-852 IP
channel or shut-down itself due to an internal error condition.
Off: The CEA-852 device is non-functional because it has not been started. This can be the
case if the L-Gate uses DHCP and it has not received a valid IP configuration (address)
from the DHCP server.
Flashing Red at 1 Hz: The CEA-852 device is non-functional because it is started but has
not been configured. Please add the device to a CEA-852 IP channel (register in
configuration server).
Flashing green or orange at 1 Hz: The L-Gate’s CEA-709 side of the gateway has not been
commissioned yet. The color indicates the CEA-852 IP channel status as described above.
3.4.8 BACnet/IP LED
The BACnet/IP LED flashes green for 25 ms when BACnet packets are transmitted or
received over the BACnet/IP interface.