SNi20 model

In order to ensure service continuity in an industrial setting, the SNi20 firewall is equipped with a hardware bypass function, which when enabled, allows network traffic to pass through in the event of a power outage or appliance breakdown.

This feature, available from version 4.1 onwards, is disabled by default. If you want to allow bypass to be enabled, high availability must not be configured on the appliance.

The SNi20 multi-function firewall is fanless.

This appliance is equipped with a 48VDC redundant power supply; the 6-pole screw terminal connector provided allows connecting to two independent sources of power.

Connectors and LEDs

1 OUT interface 2 IN interface   The SNi20 model holds 4 1Gbe Ethernet interfaces and 2 SFP* sockets for adding 1Gbe Ethernet transceivers. Specifications of Stormshield Network-approved transceivers are set out in the sections Optional Ethernet Transceivers and Fiber Ethernet connectors. * may vary by license.

1Power LED (green) 2Bypass LED (off/green/red) 3Run LED (green) 4Power in 1 OK LED (green) 5Power in 2 OK LED (green) 1 The Reset button (underside): resets the firewall’s electrical supply. 2 This is the button for resetting the appliance to its factory settings (defaultconfig). 3 The serial port enables access to the product in console mode; the user can connect to the firewall directly from a computer. The default baud rate on this model is 115 200 baud (8N1). 4 The USB 3.0 ports can be used for secure configurations or upgrades. You can also plug a USB key or an approved USB modem into it. 5 Two network ports dedicated to Ethernet Bypass (may vary by license).

6 The micro HDMI port makes it possible to connect a monitor. 7 This is the slot for the SD card*. 8 This 6-pole screw terminal connector enables connection to a 48VDC redundant power supply and a P-Fail relay. 9 Connection of the protective earth circuit.

* The recommended type of SD card is at least Class 10 (C10) UHS Class 1 (U1) or App Performance 2 (A2). The memory card must be in a full-size physical SD format, in SDHC or SDXC standard. Only adapters provided with the card must be used. The maximum memory size supported is 2 TB. Stormshield recommends the use of high-endurance/industrial cards or preferably, those that have a built-in MLC flash chip developed by major brands (e.g., SanDisk, Western Digital, Innodisk, Transcend, etc.) and with at least 32 GB.

IMPORTANT
On SNi20 appliances, use a Phillips PH1 screwdriver to remove the screws from the SD card reader cache. Insert the SD card, then put back the SD card reader cache to guarantee that the SNi20 is airtight.

Bypass LED

Color	Status	Status
	Off	Bypass feature disabled (default status, Security mode).
Green	On	Bypass feature configure in Safety mode. The Bypass mechanism will be enabled whenever the appliance breaks down or there is a power outage.
Red	On	Bypass mechanism enabled.

Redundant power supply and P-Fail (Power Failure) relay

REMINDER
Before plugging any equipment into a DC power supply module, read the security rules carefully and follow them.

Both electrical power supplies can be connected to the SNi20 to provide a redundant power source. Connect the power supplies according to the diagram shown in Connectors and LEDs

A P-Fail relay makes it possible to detect an abnormal status on a power supply. You can connect this relay to a sound or light alarm, such as a buzzer or a LED, equipped with an independent power supply. To do so, connect the external power supply of the alarm to the third and fourth pins. If both power supplies run at the same time, the alarm will be short-circuited. If either power supply is defective, the alarm will go off. The highest intensity that this relay supports is 1A.