UT-1128 is a RS-485 BUS hub with built-in dual core, and non-stop working design. It is special design for RS-485 system under complicated electromagnetic field. The transmission rate can be as high as 115.2Kbps. To ensure the data communication safety and reliability, it adopts optoelectronic isolation technology , and provides with lightning and surge protection on RS-485 ports; the built-in optoelectronic isolator and 1,500W surge protection circuit provide 2,500V isolated voltage, this prevent the devices from lightning and ESD, and ground interference. With external power, UT -1128 is quite safe for outdoor projects. Under RS-485 working mode, the circuit can distinguish the data flow direction, and switch it automatically to control the circuit; this easily solves the transmission delay issue. The transmission distance is over 1,200m. UT-1128 is a high performance converter, which is widely used in highway toll collection system, road monitoring system, and power collection system. UT-1128 provides RS-485 BUS connection, each port supports short-circuit and open circuit protection. 2,500V isolated voltage allows user improve the RS-485 BUS structure, divide the network segment easily. When the device under lightning stroke or the device is breakdown, these network segments will be isolated, so as to ensure the other network segments working normally; this improves the RS-485 network reliability, makes the network maintain time shorten. UT -1128 is the best choice for reliable RS-485 system. Standards: RS-232C, RS-485 EIA/TIA Voltage input: DC12-48V 350Ma Transmission media: Twisted pair or shielded cable Working mode: Asynchronous half-duplex Indicators: signal, PWR, TX, RX, E1-E8 Isolation: non-stop isolated voltage 2,500VRMS 500VDC, DC/DC isolated module Transmission rate: 300bps-115.2Kbps Protection:Each wire 15KV ESD protection for RS-232 ports;1,500W lightning and surge protection for RS-485 ports;2,000V lightning and surge protection for power supply Transmission distance: 0-1.2km (115,200-300bps) Dimension: 145x90x40mm Working environment: -40 -85℃, relative humidity5%-95%

UT-2017 is a port-powered converter with optoelectronic isolation. It complies with RS-232C and RS-485 standards; it converts single side RS-232 signal to a balanced differential RS-422 or RS-485 signal. The built-in optoelectronic isolator can provide as high as 2,500Vrm isolated voltage; the fast instant voltage restraint is designed to protect RS-485 interface; it adopts advanced TVS (TRANSIENT VOLTAGE SUPPRESSOR) instant voltage restraint; normally, TVS tube is in high impedance state; when both sides of TVS tube suffer from high power impact in a sudden, the voltage restraint will fast lower the impedance from both sides, and absorb in big current; with this, the voltage on both sides are fixed at presupposed value, protects the component of circuit from damage. This voltage restraint provides 600W each wire with lightning and ESD protection, and surge voltage and instant overvoltage protection on circuit which causing by all reasons; the tiny interelectrode capacitance ensures high speed transmission for RS-485 ports. RS-232 port connects with RS-232C standard port by DB9 female connector; RS-485 adopts DB9 male connector as output. This converter is with built-in zero delay auto receiving and transmitting conversion and unique I/O circuit auto control data flow direction without any handshake signal (RTS, DTR); there is no need jumper wire setting for half duplex (RS-485) mode, plug & play. It is compatible with current communication software and hardware, no need to set the previous working mode which base on RS-232. UT-2017 optoelectronic isolated port-powered converter provides connection for point to point, point to multipoint communication. For point to multipoint mode, each converter is allowed to connect 32 sets RS-485 devices with baudrate 300-115.2Kbps. The power and data flow indicators indicate the working status.

UT-206 is a converter with optoelectronic isolation. It complies with RS-232C, RS422, and RS-485 standards; it converts single side RS-232 signal to a balanced differential RS-422 or RS-485 signal. The built-in optoelectronic isolator can provide as high as 2,500Vrm isolated voltage; the fast instant voltage restraint is designed to protect RS-422/RS-485 interface; it adopts advanced TVS (TRANSIENT VOLTAGE SUPPRESSOR) instant voltage restraint; normally, TVS tube is in high impedance state; when both sides of TVS tube suffer from high power impact in a sudden, the voltage restraint will fast lower the impedance from both sides, and absorb in big current; with this, the voltage on both sides are fixed at presupposed value, protects the component of circuit from damage. This voltage restraint provides 600W each wire with lightning and surge protection, and surge voltage and instant overvoltage protection on circuit which causing by all reasons; the tiny interelectrode capacitance ensures high speed transmission for RS-422/485 ports. RS-232 port connects with RS-232C standard port by DB9 female connector; RS-422/RS-485 adopts DB9 male as connector. This converter is with built-in zero delay auto receiving and transmitting conversion and unique I/O circuit auto control data flow direction without any handshake signal (RTS, DTR); there is no need jumper wire setting for full duplex (RS-422) and half duplex (RS-485) mode, plug & play. It is compatible with current communication software and hardware, no need to set the previous working mode which base on RS-232. UT-206 optoelectronic isolated converter provides connection for point to point, point to multipoint communication. For point to multipoint mode, each converter is allowed to connect 32 sets RS-422 or RS-485 devices with baud rate 300-115.2Kbps. The power and data flow indicators indicate the working status.

In order to facilitate data communication between external devices or intelligent instruments equipped with different standard serial interfaces, it is necessary to convert the standard serial interfaces. UT-210T interface converter can convert the RS-232C serial interface data transmission (TXD) and data reception (RXD) signals into TTL/COMS compatible level, and the converted TTL level is 0-3.3V, No external power supply is required. Driven by a unique "RS-232 charge pump", power can be obtained without initializing the RS-232 serial port. It has zero-delay automatic sending and receiving conversion inside, and the unique I/O circuit automatically controls the data flow direction. Without any handshaking signals (such as RTS, DTR, etc.), it ensures that programs written in RS-232 in full-duplex mode can run in TTL mode without modification, ensuring that it is suitable for existing operating software and interface hardware. Converter transmission rate 300-115.2Kbps. l Interface characteristics: The interface is compatible with RS-232C and TTL/COMS standards of EIA/TIA l Electrical interface: RS-232 terminal DB9 female connector, TTL terminal DB9 pin connector. l Working mode: asynchronous full duplex l Transmission medium: twisted pair or shielded wire l Transmission rate: 300BPS-115.2KBPS l Dimensions: 63mm*33mm*17mm l Operating environment: -25°C to 70°C, relative humidity 5% to 95% l Transmission distance: 5m

UT-216 complies with RS-232C, RS422, and RS-485 standards; it converts single side RS-232 signal to a balanced differential RS-422 or RS-485 signal. The built-in fast instant voltage restraint is designed to protect RS-422/RS-485 interface; it adopts advanced TVS (TRANSIENT VOLTAGE SUPPRESSOR) instant voltage restraint; normally, TVS tube is in high impedance state; when both sides of TVS tube suffer from high power impact in a sudden, the voltage restraint will fast lower the impedance from both sides, and absorb in big current; with this, the voltage on both sides are fixed at presupposed value, protects the component of circuit from damage. This voltage restraint provides 600W each wire with lightning protection, and surge voltage, instant overvoltage protection on circuit which causing by all reasons; the tiny interelectrode capacitance ensures high speed transmission for RS-422/485 ports. RS-232 connects with RS-232C standard port by DB9 female connector; RS-422/RS-485 adopts DB9 male as connector. This converter is with built-in zero delay auto receiving and transmitting conversion and unique I/O circuit auto control data flow direction without any handshake signal (RTU, DTR); there is no need jumper wire setting for full duplex (RS-422) and half duplex (RS-485) mode, plug & play. It is compatible with current communication software and hardware, no need to set the previous working mode which base on RS-232. UT-216 converter provides connection for point to point, point to multipoint communication. For point to multipoint mode, each converter is allowed to connect 32 sets RS-422 or RS-485 device with baud rate 300-115.2Kbps. The power and data flow indicators indicate the working status. Standards: RS-232C, RS-485/RS-422 TIA/EIA Connector: RS-232 DB9 female input, RS-422/RS485 DB9 male output, RJ-45 Protection: RS-422/RS-485 each line 600W surge , lightning protection Working mode: asynchronous half-duplex or full-duplex LEDs for indicating PWR TXD, and RXD activity Transmission media: twisted-pair or shielded cable Transmission distance: 115.2Kbps to 300m 38.4Kbps to 600m 9600bps to 1.2Km Dimension:97×65×22mm Operating temperature: -25℃ to 70℃ Relative humidity: 5% to 95%

For communication between PC with different standard serial port and external equipments or intelligent instruments, standard serial conversion is necessary. This converter is compatible with RS-232C, RS-485 standards. It converts RS-232 signals into balanced differential RS-485 signals. The transmission distance of RS-232 communication can be extended to 1.2km. It adopts unique “RS-232” charge pump technology to drive the system, and gains power without initializing RS-232 serial port. This converter is with built-in zero delay auto receiving and transmitting conversion and unique I/O circuit auto control data flow direction without any handshake signal (RTS, DTR); this guarantees that there is no need to modify the programming under RS-232 half duplex mode, it will run smoothly under current software and hardware. The transmission rate is 300-115.2kbps. It can be used between hosts, host and SCM, which building a point to point, point to multipoint long-distance communication networking. It is widely applied in industrial automation control system, all-in-one card, access control system, parking system, ATM system, bus charging system, canteen ticketing system, attendance system, and toll station system, etc.

For communication between PC with different standard serial port and external equipments or intelligent instruments, standard serial conversion is necessary. This converter is compatible with RS-232C, RS-485/422 standards. It converts RS-232 signals into balanced differential RS-485 or RS-422 signals. The transmission distance of RS-232 communication can be extended to 1.2km. It adopts unique “RS-232” charge pump technology to drive the system, and gains power without initializing RS-232 serial port. This converter is with built-in zero delay auto receiving and transmitting conversion and unique I/O circuit auto control data flow direction without any handshake signal (RTS, DTR); this guarantees that there is no need to modify the programming under RS-232 full duplex or half duplex mode, it will run smoothly under RS-485/422 mode, ensure to suitable for current software and hardware. The transmission rate is 300-115.2kbps. It can be used between hosts, host and SCM, which building a point to point, point to multipoint long-distance communication networking. It is widely applied in industrial automation control system, all-in-one card, access control system, parking system, ATM system, bus charging system, canteen ticketing system, attendance system, and toll station system, etc.

UT-2505B is a high performance RS-232 to CAN-bus converter. It supports the interconnection between RS-232 and CAN-Bus. Rs-232 baud rate is 1,200-115,200bps, and CAN-bus baud rate is 5kbps-1Mbps. The converter supports three data conversion modes: transparent conversion, transparent tape identification conversion and Modbus protocol conversion. This extends the application scope of this converter. UT-2505B converter provides configuration tools that allow users to set the interface parameters of UT-2505B. It is industrial standard design; CAN communication interface and system is isolated; with anti-interference and surge protection ability, it is widely used in industrial control, data communication systems.

UT-2506A is a high performance RS-232/485 to CAN-Bus converter. It supports interconnection between RS-232/485 and CAN-Bus. RS-232/485 baud rate is 1,200-115,200bps, and CAN-bus baud rate is 5kbps-1Mbps.The converter supports three data conversion modes: transparent conversion, transparent tape identification conversion and Modbus protocol conversion. This extends the application scope of this converter. UT-2506A converter provides configuration tools that allow users to set the interface parameters. It is industrial standard design; CAN communication interface and system is isolated; with anti-interference and surge protection ability, it is widely used in industrial control, data communication systems.

UT-501 is an industrial port-powered converter with optoelectronic isolation. It complies with RS-232C, RS422, and RS-485 standards; it converts single side RS-232 signal to a balanced differential RS-422 or RS-485 signal. The built-in optoelectronic isolator can provide as high as 2,500Vrm isolated voltage; the fast instant voltage restraint is designed to protect RS-422/RS-485 interface; it adopts advanced TVS (TRANSIENT VOLTAGE SUPPRESSOR) instant voltage restraint; normally, TVS tube is in high impedance state; when both sides of TVS tube suffer from high power impact in a sudden, the voltage restraint will fast lower the impedance from both sides, and absorb in big current; with this, the voltage on both sides are fixed at presupposed value, protects the component of circuit from damage. This voltage restraint provides 600W each wire with lightning and ESD protection, and surge voltage and instant overvoltage protection on circuit which causing by all reasons; the tiny interelectrode capacitance ensures high speed transmission for RS-422/485 ports. RS-232 port connects with RS-232C standard port by DB9 female connector; RS-422/RS-485 adopts 10 bits terminal block as output. This converter is with built-in zero delay auto receiving and transmitting conversion and unique I/O circuit auto control data flow direction without any handshake signal (RTS, DTR); there is no need jumper wire setting for full duplex (RS-422) and half duplex (RS-485) mode, plug & play. It is compatible with current communication software and hardware, no need to set the previous working mode which base on RS-232. UT-501 optoelectronic isolated port-powered converter provides connection for point to point, point to multipoint communication. For point to multipoint mode, each converter is allowed to connect 32 sets RS-422 or RS-485 devices with baudrate 300-115.2Kbps. The power and data flow indicators indicate the working status.

UT-503 is an industrial converter with optoelectronic isolation. It complies with RS-232C, RS422, and RS-485 standards; it converts single side RS-232 signal to a balanced differential RS-422 or RS-485 signal. The built-in optoelectronic isolator can provide as high as 2,500Vrm isolated voltage; the fast instant voltage restraint is designed to protect RS-422/RS-485 interface; it adopts advanced TVS (TRANSIENT VOLTAGE SUPPRESSOR) instant voltage restraint; normally, TVS tube is in high impedance state; when both sides of TVS tube suffer from high power impact in a sudden, the voltage restraint will fast lower the impedance from both sides, and absorb in big current; with this, the voltage on both sides are fixed at presupposed value, protects the component of circuit from damage. This voltage restraint provides 600W each wire with lightning and ESD protection, and surge voltage, instant overvoltage protection on circuit which causing by all reasons; the tiny interelectrode capacitance ensures high speed transmission for RS-422/485 ports. RS-232 connects with RS-232C standard port by DB9 female connector; RS-422/RS-485 adopts 10 bits terminal block as output. This converter is with built-in zero delay auto receiving and transmitting conversion and unique I/O circuit auto control data flow direction without any handshake signal (RTU, DTR); there is no need jumper wire setting for full duplex (RS-422) and half duplex (RS-485) mode, plug & play. It is compatible with current communication software and hardware, no need to set the previous working mode which base on RS-232. UT-503 industrial optoelectronic isolated converter provides connection for point to point, point to multipoint communication. For point to multipoint mode, each converter is allowed to connect 128 sets RS-422 or RS-485 device with baudrate 300-115.2Kbps. The power and data flow indicators indicate the working status.

The UT-63424G series is a high-performance, cost-effective managed 10 Gigabit industrial Ethernet Layer 3 switch. The series includes two models that provide 16 Gigabit SFP network interfaces (or 16 Gigabit Ethernet interfaces), 4 10 Gigabit SFP+ interfaces and 8 Gigabit composite interfaces, which not only increase bandwidth and improve network data communication, but also are ideal for large-scale industrial network applications. The series products support a variety of Layer 2 software features (port mirroring, VLAN, port aggregation, IGMP Snooping, QoS, STP/RSTP/MSTP, etc.) and basic IPv4/IPv6 Layer 3 routing protocols (static routing/RIP/OSPF/VRRP), providing users with a complete solution to better build large scale industrial networks for plant automation, intelligent transportation. It provides more options to build large local area networks for industrial applications such as plant automation, intelligent transportation, video surveillance, etc. Support 16 Gigabit SFP network interfaces (or 16 Gigabit Ethernet interfaces) + 4 10Gbps SFP+ interfaces + 8 Gigabit Combo ports 10Gbps SFP+ interface supports 10Gigabit/Gigabit adaptive Support IGMP Snooping/MLD Snooping to filter multicast packets IEEE 802.1Q VLAN support for easy network planning Supports QoS with 8 queue mapping to increase network stability Support STP/RSTP and MSTP network redundancy Support SNMPv1/v2v3 to ensure network security management Supports link aggregation (static convergence/LACP) to optimize network bandwidth Support Access Control List (ACL) to enhance flexibility and network management security Support port mirroring function for online debugging Support port speed limit\broadcast storm suppression\multicast storm suppression\unknown unicast storm suppression Support Layer 3 switching function (static route/Rip/OSPF/VRRP) Support power supply, port abnormal state relay output alarm function Operating temperature: -40~75°C Support IP40 protection, fan-less, industrial grade, rack-mounted design

UT-6405 is a 5-port 10/100Mbps unmanaged Ethernet switch. It provides DC input, reverse polarity protection; at the same time, it supports DIN-Rail and wall-mounted under industrial standard, easy for installation. ●5x10/100Base-T(X) ports ●Supports full-duplex or half-duplex●10/100Mbps auto negotiation●Auto MDI/MDI-X●Built-in store-and-forward, supports multiple protocols●Fail, relay output auto alarm function ●Telecom standard, MTBF>300,000 hours

UT-6405C is a 5-port 100-M unmanaged Ethernet switch that provides positive and negative AC/DC input protection to prevent burnout of the instrument. It has a compact design and supports industry standard DIN-rail mounting, so it is easy to install in any industrial network application. Adopt high quality opt electric integration modules to provide good optical and electrical characteristics, ensure reliable data transmission and long lifecycle Supports full-duplex and half-duplex, auto negotiation Auto-10/100Mbps Fully automatic recognition of network interface, no need to manually operate switches Plug and play for easy access Operating temperature: -20~75°C Input voltage: 12/24/48VDC(10.8-52.8VDC), support reverse connection protection

UT-6405G is a 5-port full Gigabit unmanaged Ethernet switch, providing 5 1000Base-T Ethernet port, which supports -40~85°C operating temperature and good EMC performance, and also supports industrial standard DIN-rail mounting and wall mounting to ensure normal operation in harsh environment, it is easy to install and apply on any industrial network. Ensure reliable data transmission and long lifecycle Supports full-duplex and half-duplex, auto negotiation Auto-10/100/1000Mbps Fully automatic recognition of network interface Plug and play for easy access Operating temperature: -40 ~ 85°C Input voltage:12/24/48VDC(10.8~52.8VDC), supports reverse polarity protection

UT-6405GC is a 5-port full Gigabit unmanaged Ethernet switch, providing 5 1000Base-T Ethernet port, which supports -20~70°C operating temperature and good EMC performance, and also supports industrial standard DIN-rail mounting to ensure normal operation in harsh environments, so it is very easy to install and apply on any industrial network. Reliable data transmission and long lifecycle Supports full-duplex and half-duplex, auto MDI/MDI-X Auto 10/100/1000Mbps Fully automatic recognition of network interface Plug and play for easy access Operating temperature: -20 ~ 70°C Voltage input: 12/24/48VDC (10.8~52.8VDC), support reverse connection protection

UT-6405M series is a 5-port 100M simple managed Ethernet switch. It provides fixed 4 10/100Base-T(X) Ethernet interface and 1 opto-electronic optional interface, which is plug-and-play; it provides one console port and supports CLI management; it adopts low power consumption and fanless design to ensure no noise interference, and also supports -40~85°C operating temperature and good EMC electromagnetic compatibility performance to ensure stable operation in harsh industrial environment. It provides a safe and reliable solution for factory automation, intelligent transportation, video surveillance and other industrial applications to set up a fast and stable network terminal access network. Supports Fast Ethernet and optical ports (support ST/FC/SC/ SFP interface types) Support STP/RSTP and MSTP network redundancy and SNMPv1/v2/v3 to ensure network security management Support LLDP, NTP, DHCP client, access user management, system management, etc. Support CLI, console, telnet, WEB and other management methods Support UT-Ring ring function Support power, port and UT-Ring abnormal state relay output alarm function Operating temperature: -40~85°C

The UT-6405SA is a 5-port 100M unmanaged Ethernet switch that provides DC input positive and negative protection to prevent burnout of the instrument. It has a compact design and supports industrial standard DIN-rail mounting, it is easy to install in any industrial network application. Reliable data transmission and long lifecycle Supports full-duplex and half-duplex, auto MDI/MDI-X Auto 10/100Mbps Fully automatic recognition of network interface Plug and play for easy access Operating temperature: -40 ~ 85°C Voltage input: 12/24/48VDC (10.8~52.8VDC), support reverse connection protection

UT-6405W is an industrial unmanaged Ethernet switch with 5 fast Ethernet ports. It supports DC input reverse polarity protection; this protects the device from burning. UT-6405W supports industrial standard Din-Rail and wall-mounted installation; it is easy to be installed at any industrial field. Supports full/half duplex mode, auto negotiation Auto 10/100Mbps Supports crossing-identification, no need manual operation Built-in store-and-forward, supports multiple protocols Transmission data max. support 1518 bytes Complied with Telecom operation standard, MTBF>50,000 hours Auto alarm function, via FAIL, relay output

UT-6408 is a 8-port 10/100Mbps unmanaged Ethernet switch. It provides DC input, reverse polarity protection; at the same time, it supports DIN-Rail and wall-mounted under industrial standard, easy for installation. ●8x10/100Base-T(X) ports ●Supports full-duplex or half-duplex●10/100Mbps auto negotiation●Auto MDI/MDI-X●Built-in store-and-forward, support multiple protocols●Fail, relay output auto alarm function ●Telecom standard, MTBF>300,000 hours

UT-6408C is a 5-port/8-port 100-gigabit unmanaged Ethernet switch that provides AC/DC input positive/reverse protection to prevent burnout of the instrument. It has a compact design and supports standard DIN-rail mounting, it is easy to install on any industrial network. Adopt high quality opt electric integration modules to provide good optical and electrical characteristics, ensure reliable data transmission and long lifecycle Supports full-duplex and half-duplex, auto negotiation Auto-10/100Mbps Fully automatic recognition of network interface, no need to manually operate switches Plug and play for easy access Operating temperature: -20~75°C Input voltage: 12/24/48VDC(10.8-52.8VDC), support reverse connection protection

The UT-6408CA is an 8-port 100M unmanaged Ethernet switch that provides DC input positive and negative protection to prevent burnout of the instrument. It has a compact design and supports industry standard DIN-rail mounting, it is easy to install in any industrial network application. Adopt high quality opto-electric integration modules to provide good optical and electrical characteristics, ensure reliable data transmission and long lifecycle Supports full-duplex and half-duplex, auto negotiation Auto 10/100Mbps Fully automatic recognition of network interface Plug and play for easy access Operating temperature: -20 ~ 75°C Voltage input: 12/24/48VDC (10.8~52.8VDC), support reverse connection protection

UT-6408G is a 8-port full Gigabit unmanaged Ethernet switch, providing 8 1000Base-T Ethernet port, which supports -40~85°C operating temperature and good EMC EMC performance, and also supports industry standard DIN-rail mounting and wall mounting to ensure normal operation in harsh environment, it is easy to install and apply on any industrial network. Ensure reliable data transmission and long lifecycle Supports full-duplex and half-duplex, auto negotiation Auto-10/100/1000Mbps Fully automatic recognition of network interface Plug and play for easy access Operating temperature: -40 ~ 85°C Input voltage:12/24/48VDC(10.8~52.8VDC), supports reverse polarity protection

The UT-6408GC is an 8-port Gigabit unmanaged Ethernet switch that provides DC input positive and negative protection to prevent burnout of the instrument. It has a compact design and supports industry standard DIN-rail mounting, it is easy to install in any industrial network application. Adopt high quality opto-electric integration modules to provide good optical and electrical characteristics, ensure reliable data transmission and long lifecycle Supports full-duplex and half-duplex, auto MDI/MDI-X Auto 10/100/1000Mbps Fully automatic recognition of network interface Plug and play for easy access Operating temperature: -20 ~ 70°C Voltage input: 12/24/48VDC (10.8~52.8VDC), support reverse connection protection

The UT-6408SA is a 8-port 100M unmanaged Ethernet switch that provides DC input positive and negative protection to prevent burnout of the instrument. It has a compact design and supports standard DIN-rail mounting, it is easy to install in any industrial network application. Reliable data transmission and long lifecycle Supports full-duplex and half-duplex, auto MDI/MDI-X Auto 10/100Mbps Fully automatic recognition of network interface Plug and play for easy access Operating temperature: -40 ~ 85°C Voltage input: 12/24/48VDC (10.8~52.8VDC), support reverse connection protection

UT-6408W is an industrial unmanaged Ethernet switch with 8 fast Ethernet ports. It supports DC input reverse polarity protection; this protects the device from burning. UT-6408W supports industrial standard Din-Rail and wall-mounted installation; it is easy to be installed at any industrial field. Supports full/half duplex mode, auto negotiation Auto 10/100Mbps Supports crossing-identification, no need manual operation Built-in store-and-forward, supports multiple protocols Transmission data max. support 1518 bytes Complied with Telecom operation standard, MTBF>500,000 hours Auto alarm function, via FAIL, relay output Dual DC power input, overload protection

UT-6516 is a 16-port 10/100Mbps unmanaged Ethernet switch. It provides AC/DC input, reverse polarity protection; at the same time, it supports DIN-Rail and wall-mounted under industrial standards, easy for installation. ● 16x10/100Base-T(X) ports ● Supports full-duplex or half-duplex● 10/100Mbps auto negotiation● Auto MDI/MDI-X● Built-in store-and-forward, supports multiple protocols● Fail, relay output auto alarm function ● Telecom standards, MTBF>300,000 hours

With the continuous development of the PC industry, USB interfaces are gradually replacing various low-speed peripheral interfaces of old PCs. However, many important devices in industrial environments still use RS-232 interface designs. Therefore, many users use USB to RS-232 converters to achieve data transmission between PC and RS-232 devices. UT-8232 is a universal USB/RS-232 converter that is compatible with USB and RS-232 standards and does not require an external power supply. It can convert single-ended USB signals into RS-232 signals. The converter has zero-delay automatic receive and transmit conversion and unique I/O circuitry that automatically controls the data flow direction, making it plug-and-play. It ensures compatibility with all existing communication software and interface hardware. UT-8232 can provide reliable connections for point-to-point communication. It supports signal conversion from USB to RS-232 and has a data communication speed of 300-460800bps. • Standard: Compliant with USBV1.1, 1.0, 2.0 standards, EIA RS-232 standard.• USB signal: VCC, DATA-, DATA+, GND, FG.• RS-232 signal: DCD RXD TXD DTR GND DSR RTS CTS RI.• Operation mode: Asynchronous operation, point-to-point operation.• Direction control: Adopts data flow automatic control technology, automatically identifies and controls the direction of data transmission.

UT-8251A is a high performance USB and RS-232 to CAN-bus communication protocol converter. The converter supports interconnection between USB and CAN-bus or RS-232 and CAN-bus; and supports power supply or USB power supply, which further extends the application range of this converter. UT-8251A converter provides configuration tools, users can flexibly set the interface parameters of UT-8251A converter. Industrial-grade high standard design; isolation between CAN communication interface and system, with certain anti-interference and anti-surge capability, widely used in industrial control and data communication system. ● Supports bi-directional data transfer between CAN-bus and USB/RS-232 ● Support USB 2.0 protocol ● 1 CAN-bus communication interface, support 5Kbps-1Mbps baud rate ● 1 USB 2.0 interface (12Mbit) ● 1 RS-232 communication interface, support 300bps-250Kbps baud rate ● Operating voltage: 12-36V DC/USB power supply ● Operating current: ≤ 150mA@12V ● Operating temperature: -40 ~ 85 °C ● Storage temperature: -40 ~ 85°C ● Operating humidity: 5~95% (no condensing) ● Storage humidity: 5~95% (no condensing) ● Isolation voltage: 1000VDC ● Electrostatic protection: air 8kV, contact 6kV ● Surge protection: Power port: 1.2/50us common mode 2kV, differential mode 1kV CAN port：600W, RS-232 port：600W

UT-8422 is a universal USB/RS-485/422 converter that does not require an external power supply, is compatible with USB, RS-485, RS-422 standards, and can convert single-ended USB signals into balanced differential RS-485 or RS-422 signals. It provides surge protection per line, and the extremely small inter-electrode capacitance ensures high-speed transmission of the RS-485/RS-422 interface. The RS-485/RS-422 end is connected through a DB9 male connector. The converter has zero-delay automatic send/receive conversion and unique I/O circuitry that automatically controls the direction of data flow without any handshake signals (such as RTS, DTR, etc.) or jumper settings to achieve half-duplex (RS-485) and full-duplex (RS-422) mode conversion, plug and play, ensuring compatibility with all existing communication software and interface hardware. • Standard: Compliant with USBV1.1, 1.0, 2.0 standards, EIA RS-485, RS-422 standard.• USB signal: VCC, DATA+, DATA-, GND, FG.• RS-485 signal: T/R+, T/R-, GND.• RS-422 signal: T/R+, T/R-, RXD+, RXD-, GND.• Operation mode: Asynchronous operation, point-to-point or multipoint, 2-wire half-duplex, 4-wire full-duplex.