Protocol Converter
Product ID: TC-100
Tespro TC-100 is an industrial protocol converter equipped with 1×WAN and 1×LAN ports for secure interconnectivity between field devices, SCADA systems, and cloud platforms. Supporting RS485/RS232/CAN serial ports and built-in Modbus, BACnet, and OPC UA protocols, it enables seamless data acquisition and bi-directional protocol conversion for smart utilities and IoT automation.
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Protocol
Modbus / BACnet / OPC UA
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Interface
1*WAN + 1*LAN 10 / 100Mbps
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Wi-Fi
Wi-Fi 4 (802.11b/g/n)
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Serial Port
1*RS485 default (RS232 / CAN customizable)
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Features
Core Advantages
Multi-Protocol Bidirectional Conversion
Integrates a comprehensive library of industrial and building communication protocols—including Modbus RTU/TCP, BACnet IP/MSTP, OPC UA, and MQTT—supporting heterogeneous, multi-directional data conversion between field devices and host systems, BMS, SCADA, and cloud platforms.
100Mbps Ethernet Interface + Wi-Fi
Equipped with a 100 Mbps Ethernet port supporting WAN/LAN auto-sensing and Wi-Fi 4 (2.4 GHz) wireless access, it combines stable wired transmission with convenient wireless connectivity, meeting the needs for industrial equipment networking, data transmission, and on-site network deployment.
Single Serial Port Interface
Integrates one serial port supporting RS-232, RS-485, or CAN bus (selectable), facilitating connection to various industrial devices for reliable data communication.
TesproOS System & Remote O&M
Equipped with the proprietary TesproOS operating system and a visual web-based management dashboard, it enables full-lifecycle device management. It supports real-time cluster status monitoring, remote batch parameter configuration, log diagnostics, and cloud-based OTA firmware upgrades; combined with multi-layer VPN encryption, it facilitates efficient O&M without the need for on-site visits.
Rich Protocol Ecosystem
Integrates northbound cloud protocols (MQTT/OPC UA), industrial fieldbuses (Modbus/ProfiNet), and power/energy protocols (DLT645/IEC61850). Combined with OpenVPN/IPSec encryption and rapid custom protocol development, it simplifies device onboarding for plug-and-play deployment and accelerates OT-IT data convergence.
Excellent Weather Resistance
Supporting a wide operating temperature range of -40°C to +75°C and non-condensing humidity levels of 5% to 95% RH, alongside an IP30 protection rating, it reliably handles complex and harsh industrial environments—including high altitudes, high temperatures, and high pressures—to ensure stable equipment operation.
Tech Specs
Protocol Converter Specifications Table
Hardware Specifications
| Category | TC-100 |
| HardwareSystem | |
| CPU | 32-bit single-core processor, 580 MHz clock speed |
| RAM | 128 MB, DDR3 |
| Flash | 32 MB |
| Network Interfaces | |
| Ethernet Ports | 2 x 10 / 100Mbps |
| WAN | 1 x WAN 10 / 100Mbps |
| LAN | 1 x LAN 10 / 100Mbps |
| Antenna | SMA male (external thread, inner hole); Antenna Ports: 1 pcs |
| Physical Interfaces | |
| Grounding Terminal | 1 × Grounding Screw |
| Status Indicators | 4 pcs |
| Reset Button | 1 pc |
| Industrial Interfaces | |
| Serial Ports | Standard 1*RS485; RS232 / CAN bus customizable; 3kV high-voltage isolation |
| Wi-Fi Wireless Network / WLAN | |
| Wi-Fi Frequency | 2.4GHz |
| Protocol Standards | Wi-Fi 4: 802.11b/g/n |
| Max. Transmission Rate | N300 |
| Data Rate | 802.11b/g/n: Up to 300Mbps |
| Transmit Power | 802.11b: 16dBm ±2dBm (11Mbps); 802.11g: 16dBm ±2dBm (54Mbps); 802.11n@2.4GHz: 16dBm ±2dBm (HT20 MCS7); 802.11n@2.4GHz: 16dBm ±2dBm (HT40 MCS7) |
| Transmission Distance | Line-of-sight ≤ 100 meters (actual distance depends on the on-site environment) |
| Power Supply | |
| Power Interface | DC power interface: 1 (DC2.1) |
| Input Voltage Range | DC power supply: 12–36V; supports reverse polarity protection |
| PoE (Optional) | Supports PoE power supply; compatible with IEEE 802.3af / IEEE 802.3at (PoE+) standards |
| Standby Power | < 15mA @12V |
| Operating Power | 40mA @12V |
| Peak Power | 160mA @12V |
| Environmental Conditions | |
| Operating Temperature | -40°C to +75°C |
| Operating Humidity | 5% to 95% (non-condensing) |
| Storage Temperature | -40°C to +80°C |
| Mechanical Specifications | |
| Product Dimensions | 150 × 115 × 35 mm (including antenna connectors) |
| Protection Rating | IP30 |
| Housing | Metal housing |
| Mounting Method | DIN-rail / Wall-mount |
| Cooling Method | Fanless cooling |
| Product Weight | 450 g |
| Reliability | |
| Shock | IEC60068-2-27 |
| Vibration | IEC60068-2-6 |
| Drop | IEC60068-2-32 |
| Certifications and Standards | |
| Regulatory Certification | CE, RoHS |
| EMC Standards | EN 55032; EN 55035; EN IEC 61000-6-3:2021; EN IEC 61000-6-1:2019; EN 301489-1; EN 301489-17; EN 301 489-52 |
| RF Standards | EN300328; EN301893; EN301511; EN301908-1/-2/-13 |
| SAR+Safety | EN50665; EN IEC62368-1 |
| Cyber | EN18031-1; EN18031-2 |
| ESD (Electrostatic Discharge) | EN 61000-4-2:2009 |
| Radiated Immunity | EN IEC 61000-4-3:2020 |
| Burst (EFT) | EN 61000-4-4:2012 |
| Surge | EN 61000-4-5:2014 + A1:2017 (Ethernet ports) |
| Conducted Immunity | EN 61000-4-6:2014 |
| Oscillatory Waves Immunity | EN61000-4-12, level 3 |
| Magnetic Field Immunity | EN61000-4-8, Horizontal/Vertical 400A/m (>level 2) |
Software Specifications
| Category | TC-100 |
| Industrial Protocols and Data Capabilities | |
| Industrial Protocols | Includes Modbus RTU, Modbus TCP, BACnet, Mbus, OPC UA, and various other protocols |
| Modbus | Modbus RTU, Modbus TCP |
| Industrial Device Protocols | ProfiNet, EtherCat, EtherNet (optional) |
| BACnet | BACnet |
| OPC UA | OPC UA |
| Electricity Meter Protocols | DLT 645-2007, IEC 1107, IEC 61850, IEC 62056-21, DLMS |
| DN3 | Supported modes: Station, Outstation; Connection: TCP |
| DLMS/COSEM | DLMS |
| Modbus Custom Registers | Modbus TCP custom register module requests, capable of reading/writing files within the router, extending Modbus TCP client functionality |
| Supported Data Formats | INT/UINT (8/16/32-bit), 32-bit Float, HEX, ASCII; supports MSB/LSB and byte order conversion (ABCD/DCBA/CDAB/BADC) |
| DTU Function | Supports TCP/UDP transparent transmission; supports Modbus RTU to Modbus TCP conversion; supports DCTCP/DCUDP modes |
| Data to Server | HTTP(S)/MQTT/Azure MQTT; multi-source data reporting; min 1s interval; Lua scripting |
| Modbus / MQTT Gateway | Allows sending commands to a Modbus Server via an MQTT Broker and receiving data |
| API / Web API | Supports network Web API; API endpoints for retrieving or changing data |
| Networking Capabilities | |
| LAN Protocols | ARP, Ethernet |
| WAN Protocols | DHCP, Static IP |
| Network Protocols | TCP, UDP, IPv4, IPv6, ICMP, NTP, DNS, HTTP, HTTPS, SFTP, SSL/TLS, ARP, SSH, DHCP, SNMP, MQTT |
| Routing | Static routing, OSPF dynamic routing |
| NAT | DMZ, NAT, NAT-T, NAT64 (listed under Firewall) |
| DHCP | Static and dynamic IP allocation, DHCP relay, DHCP server configuration, status, static leases; supports wildcard MAC addresses |
| Network Backup / Failover | Supports automatic failover backup between Wi-Fi WAN and wired connection (Ethernet WAN) |
| QoS | Traffic priority queuing based on source/destination, service, protocol, or port; WMM, 802.11 |
| IP Applications | Supports Ping, Traceroute, DHCP Server, DHCP Relay, DHCP Client, DNS relay, DDNS, Telnet |
| DNS/DDNS | Supports DoH (DNS over HTTPS); multiple DDNS service provider configurations and manual customizatio |
| Wi‑Fi | |
| Wireless Modes | Wi‑Fi 4: 802.11b/g/n; supports Access Point (AP) and Station (STA) modes |
| Wi‑Fi Security | WPA2‑Enterprise/PSK, WPA‑EAP/PSK, WPA3‑SAE/EAP, OWE; AES‑CCMP, TKIP, client separation, EAP‑TLS, 802.11w PMF, etc |
| Maximum Wi‑Fi Clients | Wi‑Fi 4: up to 30 simultaneous connections |
| Hotspot Relay | Forwards the Wi‑Fi hotspot login page to subsequent connected devices (captive portal relay) |
| SSID / ESSID | SSID stealth mode; MAC‑address‑based access control |
| Operating Modes | Supports AP, Client, and WDS (Wireless Distribution System) modes |
| Security Features | Open system, Shared key, WPA/WPA2 authentication; WEP/TKIP/AES encryption |
| Network Security & VPN | |
| Network Protection Security | Port forwarding / traffic rules / custom TTL; WebUI/CLI firewall configuration; DMZ, NAT/NAT‑T/NAT64 |
| Data Protection Security | Supports VPN functions including PPTP, L2TP, GRE, IPSEC VPN, DMVPN, OPENVPN, WireGuard, etc.; supports digital certificate CA |
| Authentication | Pre-shared keys, X.509 certs, TACACS+, RADIUS (built-in/external), IP/time/login blocking, random password generator |
| Attack Protection | DDoS protection (SYN flood, SSH, HTTP/HTTPS); Port scanning protection (SYN-FIN, SYN-RST, X-mas, NULL, FIN) |
| VLAN | Port‑based and Tag‑based VLAN isolation |
| Access Control | Flexible access control for SSH, Web UI, CLI, and Telnet |
| OpenVPN | Supports the simultaneous operation of multiple clients and a single server; supports 27 encryption methods |
| IPsec | XFRM, IKEv1, IKEv2; 14 encryption methods for IPsec: 3DES, DES, AES128, AES192, AES256, AES128/192/256 GCM8/12/16 |
| WireGuard | Supports WireGuard VPN client and server |
| GRE | Supports GRE tunnels, GRE over IPsec tunnels |
| PPTP / L2TP | Client and server instances can run simultaneously; supports L2TPv3, L2TP over IPsec |
| DMVPN | Scalable IPsec VPN; supports Phase 2, Phase 3, and Dual Hub |
| SSTP | Supports SSTP client instance |
| ZeroTier | Supports ZeroTier VPN client |
| Stunnel | Adds TLS encryption to existing clients and servers via proxy |
| Tinc | Encryption, authentication, and compression within tunnels; supports client and server modes |
| EoIP | Ethernet over IP tunnel based on GRE RFC 1701 |
| Management & Platform | |
| Configuration Methods | Web UI, CLI, SSH, JSON‑RPC, TesproOS, etc |
| Cloud & IoT Platform | Supports Google, Huawei, Amazon, Microsoft Azure, iStarOS, Azure IoT Hub, other third-party cloud platforms, and custom clouds |
| FOTA | Firmware updates from server with automatic notification |
| SNMP | SNMP (v1, v2, v3), SNMP Trap |
| MQTT | MQTT Broker, MQTT Publisher |
| JSON‑RPC | HTTP/HTTPS‑based management API |
| SSH | SSH (v1, v2) |
| Upgrade Methods | FOTA; Web UI |
| Logging Functions | Event log, system log, kernel log |
| Alert Functions | Email message status alerts |
| On-Demand Activation | On‑demand dialing, data activation, SMS activation |
| Receives email message status alerts from various services | |
| Software System | |
| Operating System | TesproOS (Linux) |
| Supported Languages | Busybox shell, Lua, C, C++, Python |
| Development Tools | SDK package including build environment |
| Firmware Customization | Supports custom branded firmware and web page applications (colours, logos, etc.) |
| Package Management | Supports installation of additional software packages |
| Firmware & Configuration | |
| Web UI Upgrade | Update firmware from file, check for firmware on server, configuration file, configuration backup |
| FOTA Upgrade | Update firmware |
| Cloud Bulk Upgrade | Supports updating firmware/configurations of multiple devices at once via TesproOS system |
| Config-Preserved Upgrade | Update firmware without losing current configuration |
| Factory Reset | Full factory reset, restoring all system settings including IP address, PIN code, and user data |
| Environment & Reliability | |
| Hot Backup / VRRP | VRRP (listed under Network Backup) |
| Link Online Detection | Sends heartbeat packets for detection; automatically reconnects upon disconnection |
| Dual SIM Link Switching | Supports dual SIM or dual eSIM link switching |
| Built‑in Watchdog | Device self‑check technology; automatic self‑recovery from runtime faults |
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Interface Diagram
Interface Diagram
Dimensions Diagram
Accessories Diagram
Explore our Solutions
Smart Gateway for Multi-Device Protocol Integration
The TC-100 industrial protocol converter supports Modbus, BACNet, OPC UA and MQTT communication, with RS485, RS232, CAN, Ethernet, 4G/5G and Wi-Fi connectivity. It acts as a local data collection, protocol conversion and forwarding center for industrial automation, BMS, SCADA and IoT platform integration.
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Frequently Asked Questions
To help you better understand our products' performance, compatibility, and usage, we’ve compiled answers to commonly asked questions. If your inquiry isn’t listed below, feel free to contact us directly for further assistance.
Contact Us
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What protocol-conversion and system-integration problems can TC-100 solve?
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The core role of TC-100 is to break down the problem of field devices and upper-level systems that “can connect physically but speak different languages” into protocol parsing, data acquisition, address mapping, data-format conversion, and platform upload. The official detail page lists Modbus RTU, Modbus TCP, BACnet/IP, BACnet/MSTP, and OPC UA; an official product article further identifies BACnet → Modbus and OPC UA → Modbus as two typical directions in the current version. 1. Building automation: Establish configurable data exchange between BACnet/IP or BACnet/MSTP systems/devices and Modbus field devices. 2. Industrial platform integration: Bridge OPC UA and Modbus device data according to the project architecture for SCADA, equipment platforms, or upper-level systems. 3. Metering and energy: Connect meters, sensors, PLCs, or controllers so that multi-brand devices can be integrated into a unified energy-management, O&M, or cloud platform. 4. Data mapping: Source address, target address, data type, byte order, scaling factor, read/write permissions, abnormal values, and refresh cycle must be confirmed point by point. Identical protocol names do not mean devices can communicate directly without configuration.
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What network, serial/bus, and expansion interfaces does TC-100 provide?
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The official product page lists 1 WAN + 1 LAN, DC 12–36 V, RS485/RS232/CAN-type interface, 2×DI + 2×DO, USB 3.0, Micro SD, reset, and status indication. It is suitable for equipment rooms, control cabinets, or distributed sites to connect local devices to upper-level networks/cellular networks. 1. Ethernet: 1 WAN + 1 LAN helps separate the uplink platform network from the local maintenance/device network. Actual network isolation, addressing, and firewall policies should be designed for the project. 2. Serial/bus interface: The specifications show RS485, RS232, and CAN as a “select one” configuration. When ordering, the required interface must be specified in the model, wiring diagram, and BOM rather than assuming all are included simultaneously. 3. Digital I/O: 2×DI + 2×DO can be used for status acquisition, alarms/linkage, and other simple field interactions. Specific logic and electrical characteristics are subject to the datasheet. 4. Cellular/wireless: The product introduction mentions 2G/3G/4G/5G remote transmission as well as Wi-Fi indicators/antenna information. Whether the delivered unit includes cellular, Wi-Fi, the corresponding bands, and antennas should be confirmed item by item with sales. 5. Environment: Representative specifications list -40°C to +75°C, 10%–95% RH, and protection against reverse polarity, overvoltage/overcurrent, lightning, and surge.
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What are the six key technical advantages of TC-100?
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The advantages of TC-100 should be expressed around “reducing system-integration complexity” rather than generalized as every gateway capability. Its functional focus is protocol interoperability, field connectivity, and project-configurable implementation. 1. Mainstream industrial/building protocol coverage: Provides protocol access and conversion directions centered on Modbus, BACnet, and OPC UA. 2. Configurable data mapping: Supports protocol parsing, address mapping, data-format conversion, data acquisition, and platform upload, helping unify data from multiple device brands. 3. Multiple physical-interface options: Optional RS485, RS232, or CAN can connect to different field buses and device interfaces. 4. Network segmentation capability: 1 WAN + 1 LAN makes it easier to deploy the local device network separately from the uplink network, improving maintenance and network-planning flexibility. 5. Foundation for remote connectivity: The detail page describes cellular networking and remote-platform access, providing a data channel for distributed industrial and utility projects; the specific network mode must be confirmed in the order. 6. Customization and secondary-development support: The page mentions label/Logo customization and secondary development, suitable for OEM, system integration, and project-specific protocol combinations. Development boundaries, deliverables, and acceptance criteria should be written into the contract.
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What are the main application scenarios for TC-100?
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When existing equipment does not need to be replaced but inconsistent protocols prevent unified monitoring or management, TC-100 can be used as a communication-layer retrofit component. The following six scenarios accurately reflect its positioning. 1. Building BMS integration: Bridge data between HVAC, lighting, pump-room, elevator, and other systems and Modbus devices. 2. Energy management: Integrate data from electricity meters, water meters, heat meters, gateways, and other devices into an EMS or energy-consumption platform. 3. Industrial automation: Connect PLCs, variable-frequency drives, sensors, and instruments to SCADA or upper-level industrial platforms. 4. Legacy system retrofit: Reduce the cost of replacing entire systems when integrating new and old systems, equipment from different vendors, or inconsistent protocol versions. 5. Smart water and municipal utilities: Connect distributed meters, pump stations, or sensing devices to a unified platform through serial or network interfaces. 6. Multi-site remote O&M: Combine WAN/LAN with optional cellular networking to upload remote equipment status, alarms, and data to the operations center.
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How should the protocol-conversion direction of TC-100 be confirmed?
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Protocol conversion must distinguish “source protocol — target protocol — data direction — device role — read/write permissions.” The typical versions listed in the current official product article are BACnet → Modbus and OPC UA → Modbus. The product detail page uses wording such as “etc.” for other combinations and states that project-specific development is available. Therefore, it should not simply be promoted as “arbitrary bidirectional conversion among all protocols.” 1. Step 1: Confirm the source and target protocols, such as BACnet/IP, BACnet/MSTP, Modbus RTU, Modbus TCP, or OPC UA. 2. Step 2: Confirm the conversion direction and roles, such as client/server, master/slave, read/write, one-way reporting, or bidirectional control. 3. Step 3: Provide the point list, addresses, object types, data types, byte order, scaling factors, alarms, and refresh cycles to complete the mapping table. 4. Step 4: Verify exception handling, connection recovery, network security, permissions, logs, upgrades, and platform-side acceptance. 5. Step 5: If MQTT, proprietary protocols, or other combinations are required, confirm with the Tespro sales/technical team during the pre-sales stage whether the corresponding version or customization service can be provided.
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How should pricing, warranty, samples, and the purchasing process for TC-100 be explained?
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The TC-100 detail page provides a free inquiry option, datasheet download, and direct contact entry points, but does not publish a complete retail price or uniform warranty policy. Actual protocol-converter quotations are typically affected by interface version, cellular module, protocol combination, point-list size, secondary development, quantity, lead time, and service requirements. Therefore, written technical confirmation and commercial quotation must prevail. 1. Warranty: It is recommended to specify the standard warranty, optional extended warranty, software/firmware support, protocol-customization maintenance, and on-site service item by item in the contract. A 2–5-year extended warranty should be treated as an optional quotation item rather than a default policy. 2. Sample purchase: Start with one unit or a small sample batch for integration testing, verify protocol direction, point-list mapping, concurrency, network security, and exception recovery, and then proceed to volume purchasing. 3. Quotation contact: sales@tespro.com is used for sales quotations and info@tespro.com for general inquiries. The official website lists +852 4609 4648 and +1-213 610 4797 as telephone/WhatsApp contact numbers. 4. Shop and social media: Small quantities can be viewed in the Tespro Online Shop. Facebook, LinkedIn, YouTube, TikTok, X, and Instagram can be used to browse public information, cases, and product explanations. 5. Inquiry materials: It is recommended to attach the network topology, protocol description, point list, interface type, target platform, country/frequency bands, estimated quantity, sample plan, certification requirements, and lead-time requirements.


