# Gravity: UART Fiber Optic Transceiver Module

**Type:** Product page · **SKU:** TEL0153 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-uart-fiber-optic-transceiver-module.html ([markdown](https://core-electronics.com.au/gravity-uart-fiber-optic-transceiver-module.html.md))

The Gravity: UART Fiber Optic Transceiver Module with complete electrical isolation for preventing electromagnetic interference can run at 2000000 baud in...

## Pricing

- **Price:** $42.95 (inc GST) — $39.05 AUD, exc GST
- **Quantity discounts:** 6+ $37.09 (exc GST) · 12+ $35.53 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 18 and Aug 24.

## Description

Still make do with the hard and thick shielded twisted pair for remote signal-transmitting? And even drop the baud rate again and again just for transmission stability? Now get rid of these problems by using this Gravity: UART Fiber Optic Transceiver Module from DFRobot!

With complete electrical isolation for preventing electromagnetic interference, this module runs at 2000000 baud at any time within a distance of up to 10km. Besides, it features lightning protection and can share cable trunking with strong power. Also, users can use it with a passive optical splitter to realize one-to-many star networking.

Two transceiver modules for only half the price of shielded twisted pair can provide users with long-distance & interference-free fiber-optic communication, good value for money!

**![Gravity: UART Fiber Optic Transceiver Module](https://core-electronics.com.au/attachments/localcontent/InterfaceandPin_14101c692a1.png)**

**Interface & Pin**

**Pinout**

| **Name** | **Description** |
|---|---|
| **Gravity: UART** | UART interface, connect to MCU or sensor |
| **PWR LED** | Power indicator, turns ON when powered on |
| **SD LED** | Indicator for optical fiber disconnection, which lights up when the fiber optic disconnection is detected |
| **TX LED** | Indicator for fiber optic transmitting, which blinks when transmitting signal |
| **RX LED** | Indicator for fiber optic receiving, which blinks when receiving signal |
| **SC Fiber Optic Interface** | Connect to SC fiber optic interface |

SD LED can not show all the fiber disconnections or unstable transmissions. Please use a red pen, optical power meter and other tools to check error when a connection problem occurs.

**![Gravity: UART Fiber Optic Transceiver Module](https://core-electronics.com.au/attachments/localcontent/Wiring-Instructions_647501ffee2.jpg)**

**Wiring Instructions**

###  Features

12. With complete electrical isolation
13. Lightning protection
###  Applications

15. Fiber-optic communication
16. One-to-many star networking
###  Specification

18. Supply Voltage: 3.3V~5V
19. Signal Voltage: 3.3V~5V
20. Maximum Speed: 2000000 baud
21. Communication Distance: 10km
22. Operating Wavelength: 1310nm
23. Fiber Optic Type: Single Mode
24. Fiber Optic Interface: SC
25. Operating Temperature: 0~70°C
  **Documents**27. [Product wiki](https://wiki.dfrobot.com/SKU_TEL0153_Gravity_UART_Fiber_Optic_Transceiver_Module)
28. [Dimensions](https://core-electronics.com.au/attachments/localcontent/920e117ee2033e0be88f6e5be3d7e8ed_18122eee083.pdf)
###  Parts List

30. Gravity: UART Fiber Optic Transceiver Module x1
31. Gravity 4P Connector x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/T/E/TEL0153-1.jpg)