Name: Jinan USR IOT Technology USR-TCP232-T
Brand: Jinan USR IOT Technology
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S erial to Ethernet module USR-TCP232-T24 series http://en.usr.cn

Jinan USR IOT Technology Limited Page 7 of 53 tec@usr.cn

2 .1.2

.1.2

.1.2 Hardware

Hardware

Hardware Description

Description

2.1.21

2.1.21 Pin

Pin Description

Description

N o.

o. Pin

Pin Function

Function

Function Descrip

Descrip

Descrip tions

tions

1 GND Signal ground GND

2 RST RESET

Pin received 200ms low to reset the whole module.

If you do not use, can be suspended.

Note: The module is powered automatic reset, it is

recommended that connect the MCU IO port, reset the MCU

control module in a particular case.

3 ISP Update pin

This pin to ground to the module power module can be

upgraded.

If you do not use, can be suspended.

4 RXD

Module data is

received

Data receiving end of the module, TTL level 5V or 3.3V

microcontroller

5 TXD Module data

transmission

Data transmission end of the module, TTL level can be

connected to 5V or 3.3V microcontroller

6 CFG

Serial ports

Configuration pins

Low, you can use the serial port module configuration.

Normal working hours left floating or tied HIGH.

Note: give the power module, and then pulled down the CFG

pin to enter the serial configuration state.

7 LD2

Network data

instructions

Network data indicator LED connected to VCC, without the

current limiting resistance (module existing)

8 LD1

Network connection

status indicator

Network connection status indicator LED connected to VCC,

without the current limiting resistor (module already)

9 2V5

PHY chip

Output voltage

PHY chip to control the voltage output, access networks

transformer center tap

10 RX+ Received signal + Receive Data+

RX- Received signal - Receive Data -

12 TX+ Transceiver Data+ Transceiver Data+

13 TX- Transceiver Data - Transceiver Data-

14 RTS the alternate pin Can be used as RS485 enable pin

15 CTS the alternate pin Can be used as a network connection status indicator pin

16 VCC Power supply Power supply : 3.3V @ 200mA

Brand	Jinan USR IOT Technology
Model	USR-TCP232-T
Category	Network Hardware
Language	English

Jinan USR IOT Technology USR-TCP232-T User Manual

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Jinan USR IOT Technology USR-TCP232-T Specifications