Interface & Pinout

The SCOUT Series connects to host devices through an integrated 3 m USB Type‑C cable. The reversible connector is configured as a standard USB 2.0 Upstream Facing Port (UFP), providing 5 V input power and a serial data connection through the internal USB-to-UART bridge.

Use the plug drawing, reversible pin mapping, and USB bridge architecture below when checking host compatibility, designing custom fixtures, or integrating the receiver into embedded platforms.

USB Type‑C plug drawing

The drawing below shows the connector geometry and a simplified signal reference. The signal labels represent one insertion orientation; use the table below as the complete reversible pin mapping.

SCOUT Series USB Type-C plug mechanical drawing with simplified one-orientation signal reference
USB Type‑C plug mechanical drawing. Refer to the table below for the complete reversible mapping.

Pin definition

The table below is the authoritative interface mapping for reversible insertion. Contacts not listed are not used by the receiver interface.

Pin (Side A) Pin (Side B) Signal Name Description
A1, A12 B1, B12 GND Ground reference. The connector shell is also tied to GND.
A4, A9 B4, B9 VBUS Bus power supply: 5 V DC input from the host.
A5 — CC1 Configuration Channel 1 with a 5.1 kΩ Rd pull-down resistor to GND.
— B5 CC2 Configuration Channel 2 with a 5.1 kΩ Rd pull-down resistor to GND.
A6 B6 D+ USB 2.0 differential data positive.
A7 B7 D− USB 2.0 differential data negative.

USB 2.0 integration note

This interface uses standard 5 V USB 2.0 communication. USB Power Delivery (PD) and Alternate Modes are not used. Depending on the host operating system, install the CH340-series USB-to-serial driver before accessing the virtual serial port.

Connection logic & architecture

The shared interface converts the internal GNSS data stream into a USB serial connection for host-side access.

Source

GNSS Engine

Positioning data output
UART TXD / RXD
Bridge

CH340N USB-to-UART

UART-to-USB serial conversion
Host interface

USB Type‑C UFP

Power5 V VBUS
DataD+ / D−
DetectionCC1 / CC2 Rd
GroundGND

Data path

The GNSS engine outputs positioning data over UART. The CH340N bridge converts the stream into USB serial communication for the host system.

Power & device detection

The host supplies 5 V VBUS power. CC1 and CC2 each use an Rd pull-down resistor so the receiver is detected as a UFP device in either insertion orientation.

Need help with host integration? Contact Kalmix support →

Product selection

Choosing between SCOUT and SCOUT PRO?

Compare the two receiver configurations and choose the right starting point for your integration.

View SCOUT PRO View SCOUT