** DISCONTINUED **This product is discontinued with no designated replacement. Contact Westward Sales to discuss an alternative option.
The STM-602C industrial-grade Modbus gateway manufactured by Antaira Technologies allows legacy Modbus RTU/ASCII devices to operate on a Modbus TCP network. The unit configures as either a Modbus serial master or slave. The STM-602C features two independent Fast Ethernet ports for redundancy. The dual serial ports, configurable as RS-232, RS-422, or RS-485, connects to a variety of standard serial devices and networks. The DIN-rail mountable, rugged gateway meets Class 1, Division 2 specifications, and extended temperature making it ideal for industrial environments where Modbus is found.
STM-602C, Industrial Modbus TCP to 2 port serial (RS-232,422,485) RTU/ASCII gateway, standard temperature, 0 to 60°C
STM-602C-T, Same as above with extended operating temperature, -40 to 70°C
| Technology | |
| Category | Serial Connectivity | 
| Ethernet Ports | 2 Fast Ethernet (10/100TX) | 
| Standards | IEEE 802.3 10BASE-T / IEEE 802.3u 100BASE-TX | 
| Functionality | CSMA/CD | 
| Protocol | ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, SNMP, HTTP, DNS, SMTP, ARP, and NTP | 
| Industrial Protocols | Modbus RTU Master/Slave mode and Modbus ASCII Master/Slave mode | 
| Watchdog Timer | Included | 
| Serial Interface | |
| Class | Modbus TCP to Serial | 
| Serial Ports | 2 RS-232/422/485 | 
| Baud Rate | 50 bps to 921.6 Kbps | 
| Parity | None, Odd, Even, Space, Mark | 
| Stop Bits | 1, 2 | 
| Flow Control | XON/XOFF, RTS/CTS | 
| Signals | RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND / RS-422: TxD+, TxD-, RxD+, RxD-, GND / RS-485: Data+, Data-, GND | 
| Network Management | |
| System Configuration | Windows utility, telnet console, web browser | 
| Power | |
| Power Consumption | 3.2 W | 
| Connection | Terminal block | 
| Input Voltage | Redundant 12 to 48 VDC | 
| Reverse Polarity Protection | Yes | 
| Over Voltage Protection | Yes | 
| Mechanical | |
| Enclosure | Metal | 
| Mounting | DIN-rail or wall mounting | 
| LED Indicators | Link / activity, power, system status, LAN speed, and serial TX / RX | 
| Weight | 1.06 lbs (0.48 kg) | 
| Dimensions | 37 x 140 x 95 mm | 
| Ratings | |
| Operating Temperature | Standard: -10 to 60°C or Extended: -40 to 70°C | 
| Storage Temperature | -40 to 85°C | 
| Humidity | 5 to 95% non-condensing | 
| RoHS Compliant | Yes | 
| Certifications | CE, FCC Part 15 Subpart B (Class A), UL/cUL (Class 1, Division 2, Groups A, B, C and D) | 
| Warranty | 5 Years | 
| Download Name | File Size | 
| STM-60XC Software Manual | 986.36KB | 
| STM-60XC Hardware Manual | 983.32KB | 
| STM-60XC Press Release | 152.79KB | 
| STM-602C Datasheet | 255.43KB | 
| STM-602C Quick Install Guide | 319.8KB | 
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