SF100-G-GB/IE - Uncategorized Multitech - Free user manual and instructions
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| Product Type | Industrial Serial-to-Ethernet Gateway |
| Model | SF100-G-GB/IE |
| Brand | Multitech |
| Dimensions (W x D x H) | 100 x 60 x 25 mm (3.9 x 2.4 x 1.0 in) |
| Weight | 120 g (4.2 oz) |
| Power Input | 5-24 V DC, via USB or terminal block |
| Power Consumption | 2 W typical |
| Serial Interface | 1x RS-232/422/485, DB9 or terminal block |
| Ethernet Interface | 1x 10/100 Mbps, RJ45 |
| Protocols Supported | TCP/IP, UDP, Modbus RTU/ASCII/TCP, PPP |
| Operating Temperature | -40 to 85 °C (-40 to 185 °F) |
| Storage Temperature | -40 to 85 °C (-40 to 185 °F) |
| Humidity | 5-95% non-condensing |
| Mounting | DIN rail or desktop |
| LED Indicators | Power, Link/Activity, Serial TX/RX |
| Configuration | Web interface, Telnet, serial console, or utility software |
| Firmware Upgrade | Via web interface or TFTP |
| Certifications | CE, FCC, UKCA |
| IP Rating | IP30 (enclosure) |
| Included Accessories | USB cable, power adapter (optional), mounting kit |
| Warranty | 2 years |
| Maintenance | Keep clean and dry; no user-serviceable parts inside |
| Safety | Use only with approved power supply; avoid exposure to moisture |
| Spare Parts & Repairability | Contact Multitech support for replacement units; field repair not recommended |
Frequently Asked Questions - SF100-G-GB/IE Multitech
How do I connect the SF100-G to my serial device?
Connect your serial device's DB9 or terminal block to the SF100-G's serial port. Ensure the serial settings (baud rate, parity, etc.) match both devices. Use a crossover cable for RS-232 if needed.
What power supply do I need?
The SF100-G accepts 5-24 V DC via its USB port (cable included) or the terminal block (2-pin). Use a regulated power supply capable of at least 500 mA. Multitech recommends their model PS-DC-5V.
How do I access the web interface?
By default, the SF100-G obtains an IP via DHCP. Find its IP on the LCD (if equipped) or use the utility software 'MultiTech Device Manager'. Then open a browser and enter the IP. Default login is 'admin'/'admin'.
Can I use the SF100-G with Modbus devices?
Yes, the SF100-G supports Modbus RTU, ASCII, and TCP. Configure the serial port as 'Modbus Master' or 'Slave' in the web interface. It can also convert between serial and Ethernet Modbus.
What do the LED indicators mean?
The Power LED lights steady when powered. Link/Activity flashes with Ethernet traffic. Serial TX and RX blink during serial data transmission. If none light, check power and connections.
How do I reset the SF100-G to factory defaults?
Press and hold the recessed 'Reset' button for 10 seconds while the device is powered. The LEDs will flash, indicating a reset. All settings will be lost.
Is the SF100-G compatible with Raspberry Pi?
Yes, you can connect it via USB (serial gadget mode) or Ethernet. Configure the Pi's serial console or use network sockets. The SF100-G appears as a serial device when connected via USB.
What is the maximum baud rate supported?
The serial port supports baud rates from 300 to 230400 bps. Standard rates are 9600, 19200, 38400, 57600, and 115200 bps. Ensure your device matches.
Can I mount the SF100-G on a DIN rail?
Yes, a DIN rail mounting clip is included. Attach the clip to the rear of the device and snap it onto a 35mm DIN rail. It can also be placed on a desk with rubber feet.
How do I update the firmware?
Download the latest firmware from the Multitech support site. In the web interface, go to 'Administration > Firmware Upgrade', upload the firmware file, and confirm. Do not power off during the upgrade.
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