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** DISCONTINUED **This product is discontinued with no designated replacement. Contact Westward Sales to discuss an alternative option.
Antaira Technologies' STM-604C industrial-grade Modbus gateway manufactured allows legacy Modbus RTU/ASCII devices to connect to a Modbus TCP network. The unit configures as either a Modbus serial master or slave. The STM-602C features two redundant Fast Ethernet ports for reliability. The dual serial ports, configurable as RS-232, RS-422, or RS-485, connects to standard serial devices and networks. The DIN-rail mountable gateway meets UL, Class 1, Division 2 specifications, and extended temperature making it perfect for industrial and harsh environments where Modbus is found.
STM-604C, Industrial Modbus TCP to 4-port serial (RS-232,422,485) RTU/ASCII gateway, standard temperature, 0 to 60°C
STM-604C-T, Same as above with extended 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 | |
| Category | Modbus TCP to Serial |
| Serial Ports | 4 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 |
| Overload Protection | Yes |
| Mechanical | |
| Enclosure | Metal |
| Dimensions | 55 x 140 x 95 mm |
| Weight | 1.22 lbs (0.56 kg) |
| Mounting | DIN-rail or wall mount |
| LED Indicators | Link / activity, power, system status, LAN speed, and serial TX / RX |
| 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-604C Datasheet | 259.98KB |
| STM-604C Quick Install Guide | 354.98KB |
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