Field Console · Serial Bridge

! End-to-end encryption is OFF — serial data crosses the cloud relay as plaintext, readable by the relay and anything on the path. Pick "Link key" or "Passphrase" below if the data matters.

1 Session code & invite

Each encryption mode has its own invite link (see below)

Network end-to-end encryption (off by default — pick one to reveal its invite link)

Off — link only

Cloud relay forwards serial data as plaintext (recommended for demos / public lab gear only).

Link key — 256-bit key rides inside this URL

Key lives in the URL fragment (never sent to the server) — share the whole link. Strongest, but the link is long.

Passphrase — link + passphrase (separate channels)

This link carries no secret — tell them the passphrase separately (phone / chat).

What's the difference between the three?

Off: serial data is plaintext on the relay (yellow banner above). Link key: a random 256-bit key rides in the invite link's # fragment — strongest, but a long link. Passphrase: both sides type the same passphrase, no long link to share; shorter passphrases are easier to brute-force, so use the generated 12 characters.

Device / site note * (shown to engineers — e.g. "CR1-RoomA core switch")

2 Cloud link

… Auto-connect

Let remote engineers control the serial port (recommended): when on, an engineer can pick the device model to apply baud/parity and can open or close the serial port on this device; applying new parameters closes & reopens the port here (about a second of interruption). When off, engineers cannot touch the serial port.

Once the cloud link is up, plug in the console cable below and the remote engineer can reach the device through the invite link.

3 Attach the console port (Web Serial)

The port is normally driven by the remote engineer (parameters, open/close — once “Let remote engineers control the serial port” is on). The buttons below are for first-time attach only: a browser grants a port only on a local tap, so the very first “Open serial” must be done here. After that, the remote side can open and close it freely.

Brand (quick preset)

Model — auto-fills the params below

Baud rate

Data bits

Stop bits

Parity

Flow control

Demo mode (no hardware, echoes the cloud back)

Received (device→cloud) 0 B Sent (cloud→device) 0 B

Requires Android + Chrome or desktop Chrome. On a phone, connect a USB-to-RS232 adapter (FTDI / CH340 / CP210x, no drivers) with an OTG cable, then a rolled console cable into the device's Console port. Cisco IOS defaults to 9600-8-N-1. A system permission dialog appears the first time.

4 Message the engineer (photo / clip / text)

Requires the cloud link to be up. Engineers in the session receive it instantly. Photos & clips are uploaded per session only — cleared automatically when it ends.

Event log

— idle —