
10 | © Frio 2021 - Rev. 0.3 - Updated 3/2/2021
The S1-A will attempt to connect via TCP port 31314. If this fails, it will attempt to use TCP port 993, which is typically
open by default for email traffic. Should both 31314 and 993 be closed, it will try 443. The S1-A does not use UDP.
Port 80 is used to req
uest and transfer impOS™ updates. This port is typically open by default for HTTP/HTTPS
communications.
Future firmware versions will allow Frio S1-A devices to support static network configurations and access through
proxy servers.
3.4.1.4
S1-A BlinkUp Codes
The Frio S1-A provides users with information on the internet connection via the BlinkUp LED. The table below
includes status codes that can be shown via the BlinkUp LED.
500ms
500ms
Repeat
For three seconds
Device waiting for Ethernet
500ms
500ms
250ms
250ms
Repeat
Searching for Wi-Fi network
500ms
500ms
500ms
250ms 250ms
250ms
Repeat
Joining Wi-Fi network
500ms
500ms
500ms
250ms
250ms
250ms
250ms
250ms
Repeat
Getting IP address
500ms
250ms 250ms
Repeat
Resolving server name
500ms
250ms 250ms
Repeat
Connecting to server
500ms
500ms
500ms
250ms
Repeat
500ms
500ms
Repeat
Proxy address or port incorrect
500ms
500ms
250ms 250ms
250ms
250ms
Repeat
Proxy credentials rejected
500ms
500ms
250ms 250ms
250ms
250ms
250ms
500ms
500ms
Repeat
500ms
250ms
250ms
250ms
Repeat
Updating Firmware
Continuous for duration of update
LED not illuminated
3.4.2
S1-C Cellular Internet Connection
The Frio S1-C connects to the internet via cellular connection as described in the following section. Use the Frio Mobile
App to configure a Frio S1-C device via the BlinkUp process. After device activation via BlinkUp, the Frio S1-C will
automatically connect to a cellular network via LTE bands 2, 4, 5, 12. The Frio S1-C device also has 3G fallback on
UMTS bands 5, 4, 2. Typically, the device will take 30 seconds or longer to boot the modem and connect to the cellular
network (there is a 120-second timeout in place). If you are using the Frio S1-C for the first time or in a new country,
it may take longer. The BlinkUp LED will stop flashing after 180 seconds, which means the status is not visible after
this point. Please be patient, especially on first connect, and allow the device several minutes for a first connection. If