User Manual

IDU Hardware Description
1-5
1
All ports support automatic MDI/MDI-X operation, so you can use straight-through
cables for all network connections to PCs or servers, or to other switches or hubs.
Each of these ports support auto-negotiation, so the optimum transmission mode
(half or full duplex), and data rate (10 or 100 Mbps) is selected automatically.
Each RJ-45 port includes a built-in LED indicator. This LED indicator is described in
the following table.
ODU Port
The IDU includes one 10BASE-T/100BASE-TX RJ-45 port that supports a
Power-over-Ethernet (PoE) connection to the ODU. The ODU port also includes a
built-in LED indicator that provides status indications as described in Table 1-4.
Caution: DC VOLTAGE! Do not connect the ODU port to a computer’s RJ-45 port.
VoIP Phone Ports
The IDU provides two RJ-11 telephone ports that connect directly to a standard
(analog) telephone set. This allows a regular telephone to be used for making VoIP
calls over the Internet.
Power Adapter Socket
The power socket is located on the rear panel of the IDU. The power socket is for
the AC power adapter connection.
The unit is powered on when connected to its AC power adapter, and the power
adapter is connected to an AC power source between 100-240 volts at 50-60Hz.
Table 1-4 LAN Port Status LEDs
LED Status Description
Link/Activity On Green Ethernet port has a valid link with an attached device.
Flashing Green The port is transmitting or receiving data.
Off Ethernet port has no link with another device.