724-746-5500 | blackbox.com
Page 15
Chapter 2: Overview
Table 2-4. General Status LEDs definitions.
LED
Color
Description
Power
Green
Unit is receiving power.
Green (flashing)
A port has an alarm or the system needs attention.
Off
Unit is not receiving power.
Status
Green
Connected to management terminal (or to carrier, if the port is used for
data).
Off
Not connected.
WAN port (Ethernet port) Green
Connected to WAN gateway (Ethernet hub or switch).
Off
Connection to WAN gateway has failed.
LAN port (Ethernet port)
Green
Connected to a supported Ethernet device or connected to the LAN
(connected to an Ethernet hub or switch).
Off
Not connected to the LAN.
Cellular
Green (not flashing) Connected to a cellular wireless carrier.
Green (Flashing)
A cellular wireless network is sending a signal, but the wireless port has
not been configured.
Off
Not activated. The device has not been authenticated for a wireless
carrier and is not receiving a signal.
2.4.4 Dual-Serial Port Module
The industrial routers (part numbers WRT4001A–WRT4004A and WRT4001A-DC–WRT4004A-DC) have one dual-port serial
module pre-installed in one of the empty expansion slots. No additional expansion modules are available at this time.
Figure 2-5 shows the dual serial-port module for the industrial routers (WRT4001A–WRT4004A and WRT4001A-DC–WRT4004A-
DC).
NOTE: Commercial WRT4000 Series Routers (WRT4011A–WRT4014A) do not have the serial module.
As the name indicates, this module provides two serial ports. The serial ports use RJ-45 connections.
Figure 2-5. Dual serial port module (present in industrial models).
Figure 2-6 shows the pin locations on an RJ-45 Ethernet port. Table 2-5 lists the pin configuration for the WRT4000 Series
Router’s RJ-45 serial ports.
Figure 2-6. Pin locations for female RJ-45 serial connector.
