Hardware, Interfaces and Zones
Hardware Overview
This section describes the front and rear panels for each model.
Front Panels
The LED indicators are located on the front panel.
The following table describes the front panel LEDs.
LED | Color | status | description |
|---|---|---|---|
PWR | Off | The Zyxel Device is turned off. | |
Green | On | The Zyxel Device is turned on. | |
Red | On | There is a hardware component failure. Shut down the device, wait for a few minutes and then restart the device. If the LED turns red again, then please contact your vendor. | |
SYS | Green | Off | The Zyxel Device is not ready or has failed. |
On | The Zyxel Device is ready and running. | ||
Blinking | The Zyxel Device is booting. | ||
Red | On | The Zyxel Device has an error or has failed. | |
USB | Green | Off | No device is connected to the Zyxel Device’s USB port or the connected device is not supported by the Zyxel Device. |
On | A mobile broadband USB card or USB storage device is connected to the USB port. | ||
Orange | On | Connected to a mobile broadband network through the connected mobile broadband USB card. | |
P1, P2... | Green | Off | There is no traffic on this port. |
On | This port has a successful 10/100 Mbps link. | ||
Blinking | The Zyxel Device is sending or receiving packets on this port at 10/100 Mbps. | ||
Yellow | Off | There is no connection on this port. | |
On | This port has a successful 1000 Mbps link. | ||
Blinking | The Zyxel Device is sending or receiving packets on this port at 1000 Mbps. |
The following table describes the ports on the front panel.
Label | Description |
|---|---|
RESET | Press the button in for about 5 seconds (or until the SYS LED starts to blink), then release it to return the Zyxel Device to the factory defaults (password is 1234, LAN IP address 192.168.1.1 etc.) |
CONSOLE | You can use the console port to manage the Zyxel Device using CLI commands. You will be prompted to enter your user name and password. See the Command Reference Guide for more information about the CLI. When configuring using the console port, you need a computer equipped with communications software configured to the following parameters: • Speed 115200 bps • Data Bits 8 • Parity None • Stop Bit 1 • Flow Control Off |
USB | Connect a storage device for system logs (see Maintenance > Diagnostics > System Log) and storage (see Configuration > System > USB Storage). |
P1 ~ P6 | These are 1G RJ-45 Ethernet ports. |
Rear Panels
The connection ports are located on the rear panel.
The following table describes the items on the rear panel.
Label | Description |
|---|---|
Console | You can use the console port to manage the Zyxel Device using CLI commands. You will be prompted to enter your user name and password. See the Command Reference Guide for more information about the CLI. When configuring using the console port, you need a computer equipped with communications software configured to the following parameters: • Speed 115200 bps • Data Bits 8 • Parity None • Stop Bit 1 • Flow Control Off |
Power | Use the included power cord to connect the power socket to a power outlet. Turn the power switch on if your Zyxel Device has a power switch. |
Lock | Attach a lock-and-cable from the Kensington lock (the small, metal-reinforced, oval hole) to a permanent object, such as a pole, to secure the Zyxel Device in place. |
Fan | The fans are for cooling the Zyxel Device. Make sure they are not obstructed to allow maximum ventilation. |
Use an 8-wire Ethernet cable to run your Gigabit Ethernet connection at 1000 Mbps. Using a 4-wire Ethernet cable limits your connection to 100 Mbps. Note that the connection speed also depends on what the Ethernet device at the other end can support.Console Port Pin Connection
These are the cable pinouts for RJ-45 to DB-9.
CONSOLE PORT / RJ-45 PIN | SIGNAL | DB-9 PIN |
|---|---|---|
1 | DTR | 6 |
2 | DSR | 4 |
3 | RxD | 3 |
4 | CTS | 7 |
5 | GND | 5 |
6 | TxD | 2 |
7 | RTS | 8 |
8 | NC | 1, 9 |
These are the signal names.
Signal | Signal Name |
|---|---|
RxD | Receive Data |
TxD | Transmit Data |
DTR | Data Terminal Ready |
GND | Ground |
DSR | Data Set Ready |
RTS | Request to Send |
CTS | Clear to Send |
RI | Ring Indicator |
NC | Not Connected |
Wall-mounting
Do the following to attach the Zyxel Device to a wall.
The following table lists the distance “X” between mounting holes for each model:
model name | Distance “X” |
|---|---|
USG FLEX 50 (USG20-VPN) | 174 mm (6.85”) |
USG FLEX 50W (USG20W-VPN) | 174 mm (6.85”) |
1 Drill into a wall two holes 3 mm ~ 4 mm (0.12" ~ 0.16") wide, 20 mm ~ 30 mm (0.79” ~ 1.18”) deep, and a distance X (see the preceding table) apart. Place two screw anchors in the holes.
2 Screw two screws with 6 mm ~ 8 mm (0.24" ~ 0.31") wide heads into the screw anchors. Do not screw the screws all the way in to the wall; leave a small gap of between 1 ~ 1.5 mm (0.04” ~ 0.06”) between the head of the screw and the wall.
The gap must be big enough for the screw heads to slide into the screw slots and the connection cables to run down the back of the Zyxel Device.
Make sure the screws are securely fixed to the wall and strong enough to hold the weight of the Zyxel Device with the connection cables.3 Use the holes on the Zyxel Device to hang the Zyxel Device on the screws.
Wall-mount the Zyxel Device horizontally. The Zyxel Device's side panels with ventilation slots should not be facing up or down as this position is less safe.
Default Zones, Interfaces, and Ports
The default configurations for zones, interfaces, and ports are as follows. References to interfaces may be generic rather than the specific name used in your model. For example, this guide may use “the WAN interface” rather than “wan1” or “wan2”, “ge2” or” ge3”.
An OPT (optional) Ethernet port can be configured as an additional WAN port, LAN, WLAN, or DMZ port.
The following table shows the default physical port and interface mapping for each model at the time of writing.
port / interface | p1 | p2 | p3 | p4 | p5 | p6 | p7 | p8 |
|---|---|---|---|---|---|---|---|---|
USG FLEX 50 (USG20-VPN) | sfp | wan | lan1 | lan1 | lan1 | lan1 | ||
USG FLEX 50AX | wan | lan1 | lan1 | lan1 | opt | |||
USG20W-VPN | sfp | wan | lan1 | lan1 | lan1 | lan1 |
The following table shows the default interface and zone mapping for each model at the time of writing.
Zone / interface | wan | lan1 | lan2 | dmz | opt | no default zone |
|---|---|---|---|---|---|---|
USG FLEX 50 (USG20-VPN)/ USG FLEX 50AX/ USG20W-VPN | WAN WAN_PPP | LAN1 | LAN2 | DMZ | OPT OPT_PPP |
Stopping the Zyxel Device
Always use Maintenance > Shutdown > Shutdown or the shutdown command before you turn off the Zyxel Device or remove the power. Not doing so can cause the firmware to become corrupt.