L-Gate User Manual 19 LOYTEC
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.