Interface Description
3
INTERFACE DESCRIPTION
The SRW01-ETH smart relay has two standard Ethernet ports. Information about the connection and installation of
the equipment to the network is presented bellow.
3.1
ETHERNET INTERFACE CHARACTERISTICS
The interface follows the Fast Ethernet 100BASE-TX standard.
It allows communication using the 10 or 100 Mbps rates in half or full duplex mode.
It has a built-in, two-port Ethernet switch.
The Ethernet ports work with Auto-MDIX (automatic medium-dependent interface crossover), a technology which
automatically detects the type of cable used and configures the connection accordingly, eliminating the need of
cross-over cables.
The housings of the Ethernet connectors – which are normally connected to the cable shield – have connections
between themselves and to the protective earth.
X
NOTE!
When the equipment is turned off, the built-in switch is also deactivated.
3.2
INDICATION LEDS
The smart relay SRW01-ETH has LEDs in the each Ethernet port connector (PORT1 and PORT2), besides a bicolor
diagnostics LED (NET).
Figure 3.1:
Connectors and LEDs
Those LEDs have the following functions and indications:
Table 3.1:
Indication LEDs
LED
Color
Function
NET
Bicolor
(Green/Red)
Network status. See specific chapter of protocols for description of indi-
cations.
Link/Activity
100Mbps
Ê
Green
100Mbps link and activity indication LED, one for each Ethernet port.
Link/Activity
10Mbps
Ë
Amber
10Mbps link and activity indication LED, one for each Ethernet port.
SRW01-ETH | 8
