Item Type: Digital Tube Display_x000D_ Product Model: LED-054S_x000D_ Display Digits: 4 digits_x000D_ Digital Tube Size: 0.56in_x000D_ Shell Size: _x000D_ Width: Approx. 60mm / 2.4in_x000D_ Height: Approx. 29mm / 1.1in_x000D_ Depth: Approx. 22mm / 0.9in_x000D_ Hole Size: _x000D_ Width: Approx. 58mm / 2.3in_x000D_ Height: Approx. 27mm / 1.1in_x000D_ Power Supply Voltage: DC 5-36V_x000D_ Interface Terminal Number: XH2.54-4P_x000D_ Pin Definition: + refers to the power positive pole, - refers to the power negative pole_x000D_ A/T: RS485 Bus A/TTL TXD_x000D_ B/R: RS485 B/TTL RXD_x000D_ Serial Port Parameters: _x000D_ Baud Rate: 1200bps, 2400bps, 4800bps, 9600bps (factory default), 19200bps, 38400bps, 57600bps.115200bps_x000D_ Start Digit: 1 digit_x000D_ Stop Digit: 1 digit (factory default), 2 digit, 1.5 digit_x000D_ Data Digit: 8_x000D_ Parity: No parity (factory default), odd parity, even parity_x000D_ Communication Protocol: Supports automatic identification of ASCII text and RTU dual protocol, no user setting is required_x000D_ _x000D_ _x000D_ Product Function: _x000D_ 1. Communication Method: RS485, supports RTU protocol and simple ASCII protocol, and the protocol is automatically recognized._x000D_ 2. It can display various ASCII characters such as integer, minus sign, decimal point, ABCDEFPL, etc., which is more comprehensive._x000D_ 3. Support electronic label function, the initial display content can be set after power-on. Widely used in storage location number labels. For example, display A001, B002, C003, etc._x000D_ 4. Support stroke brightness adjustment, with 7 levels of brightness._x000D_ 5. Support to modify the baud rate (1200bps-115200bps), covering several commonly used baud rates._x000D_ 6. Support to modify the stop bit and check bit._x000D_ 7. You can choose the initial display content after power on, display 0, display 485 address, display any content specified by the user, etc._x000D_ 8. A 485 bus can be connected to 32 digital tubes (without relay), and 254 can be connected after adding a relay._x000D_ 9. Provide supporting PC software to facilitate testing and modification of parameters.