Getting to Know Your Gateway

Front Panel

The front panel of your SMCD3GN Wireless Cable Modem Gateway contains a set of light-

emitting diode (LED) indicators. These LEDs show the status of your Gateway and simplify

troubleshooting.

Figure 1 shows the front panel of the SMCD3GN Wireless Cable Modem Gateway. Table 1

describes the front panel LEDs.

Figure 1. Front Panel of the SMCD3GN Wireless Cable Modem Gateway

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SMCD3GN Wireless Cable Modem Gateway User Manual

Getting to Know Your Gateway

Table 1. Front Panel LEDs

LED

Color

Description

POWER

Green

ON = power is supplied to the Gateway.

OFF = power is not supplied to the Gateway.

Green

Blinking = scanning for DS channel.

ON = synchronized on 1 channel only.

DS

Blue

ON = synchronized with more than 1 channel (DS Bond mode).

DS and US

Both DS

and US blinking together = operator is performing maintenance.

Green

Blinking = ranging is in progress.

ON = ranging is complete on 1 channel only.

OFF = scanning for DS channel.

US

Blue

ON = ranging is complete, operate with more than 1 channel (US Bond mode).

ONLINE

Green

Blinking =.cable interface is acquiring IP, ToD, CM configuration.

ON = Gateway is operational.

OFF = Gateway is offline.

LINK

Green

Blinking = data is transmitting.

ON = Gateway is operational.

OFF = no Ethernet link detected.

DIAG

Amber

ON = system failure.

OFF = normal operation.

Green

Blinking = data is transmitting.

ON = connected at 10 or 100 Mbps.

OFF = no Ethernet link detected.

LAN 1 – LAN 4

Blue

Blinking = data is transmitting.

ON = connected at 1 GMbps.

OFF = no Ethernet link detected.

WIFI

Green

Blinking = data is transmitting.

ON = Wi-Fi is enabled.

OFF = Wi-Fi is disabled.

USB

Green

Reserved for future use.

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Getting to Know Your Gateway

Configuring Wireless Security

The front panel has a

WPS

button for configuring wireless security automatically. Pressing

this button for 5 seconds automatically configures wireless security. If the client device

supports WPS Push Button Configuration (PBC), press the button within 60 seconds to

automatically configure security on the client.

After pressing this button for 5 seconds, the

WPS

LED on the front panel flashes. When a

client joins the network successfully, the LED goes ON until the next WPS action or the

device reboots. If no client joins, the LED stops blinking after 4 minutes.

Rear Panel

The rear panel of your SMCD3GN Wireless Cable Modem Gateway contains a reset button

and the ports for attaching the supplied power adapter and making additional connections.

Figure 2 shows the rear panel components and Table 2 describes their meanings.



Figure 2. Rear View of the SMCD3GN Wireless Cable Modem Gateway

Table 2. SMCD3GN Wireless Cable Modem Gateway Rear Panel Components

Item

Description



Power (12VDC)

Connect the supplied power adapter to this port.



LAN 1-4

Four 10/100/1000 auto-sensing RJ-45 switch ports. Connect devices on your local area network

such as a computer, hub, or switch to these ports.



USB

USB 2.0 high-speed port for storing configurations externally.



Cable

Connect your coaxial cable line to this port.



Reset button

Use this button to reset the power or restore the default factory settings (see “Restoring Factory

Defaults,” below). This button is recessed to prevent accidental resets of your Gateway.









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SMCD3GN Wireless Cable Modem Gateway User Manual

Restoring Factory Defaults

Using the Reset button on the back panel, you can power cycle the Gateway and return it to

its original factory default settings. As a result, any changes you made to the Gateway’s

default settings will be removed. To reset the Gateway and keep any overrides you made to

the factory default settings, use the software reset method described under “Using the

Reboot Menu to Reboot the Gateway” on page 59.

1. Leave power plugged into the Gateway.

2. Find the Reset button on the back panel, then press and hold it for at least 10 seconds.

3. Release the Reset button.

2 Installing Your Gateway

This chapter describes how to install your SMCD3GN Wireless Cable Modem Gateway. The

topics covered in this chapter are:

y

Finding a Suitable Location (page 16)

y

Connecting to the LAN (page 16)

y

Connecting the WAN (page 17)

y

Powering on the Gateway (page 17)

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SMCD3GN Wireless Cable Modem Gateway User Manual