Services
Cellular Router VPN Connectivity Packages
Remote Router & Device Management Software
Cellular Site Survey Services
Bundled Internet Data Packages
Cellular Routers & Gateways
Teltonika Routers & Gateways
Advantech Routers & Gateways
4G Antennas
Industrial Network Switches
Unmanaged Switches
LoRaWAN Gateways & Sensors

RS-232/422 to TTL/Current Loop Converter - ULI-227

Featured Products
ADAM & WISE I/O Series
Automation Controllers & I/O
Modular I/O System: ADAM-5000 Series
Digital I/O Modules
Data Acquisition (DAQ)
Signal Conditioning Modules and Terminal Boards
I/O Wiring Terminal Boards (ADAM-3900 & PCLD Series)
Ethernet / Serial Device Servers
Serial Device Servers
Gateways & Remote Terminal Units (RTUs)
Intelligent RTU (Remote Terminal Unit) : ADAM-3600
IoT I/O Gateways: ADAM-6700 Node-RED
IoT I/O Gateways: ADAM-6700 WISE-EdgeLink
Industrial Ethernet Switches
Unmanaged Ethernet Switches
Industrial Protocol Gateways
Modbus Gateways
Remote I/O
IoT Ethernet I/O Modules: ADAM-6000/6200
Ethernet I/O Modules: ADAM-6000
Ethernet I/O Modules with Daisy Chain: ADAM-6200
IoT Ethernet I/O Modules: WISE-4000LAN
Modular I/O System: ADAM-5000 Series
Analog I/O Modules
Counter/Frequency Modules
Digital I/O Modules
I/O Rack
OPC UA Ethernet I/O Modules: ADAM-6300
RS-485 I/O Modules: ADAM-4000/4100
Analog I/O Modules
Digital I/O Modules
Serial / USB Communications
Serial Converters/Isolators/Repeaters - ULI-200
RS-232 to RS-422/485 Converters - ULI-224 Series
RS-422/485 Isolated Repeaters - ULI-234 Series
Serial to Fiber Converters - ULI-210 Series
USB Converters/Isolators/Hubs - ULI-300/400
USB to RS-232 Converters - ULI-320 Series
USB to RS-422/485 Converters - ULI-340 Series
Signal Conditioning Modules and Terminal Boards
Signal Conditioning Modules
Wired Light sensor
Wireless I/O Devices
Industrial Cat. NB1/Cat. M1 Wireless I/O Module
Proprietary LPWAN/SUB-G Wireless I/O Module
WiFi 2.4GHz/5GHz Wireless I/O Module
Wireless I/O & Sensors
Smart IoT Sensing Solutions
Smart IoT Sensor Nodes
Wireless I/O Devices
Wzzard Mesh Nodes
Antennas
LoRaWAN Antennas
Mobile Mark Antennas
Panorama Antennas
Poynting Antennas
Marine and Costal Antennas
Omni-Directional Antennas
Tunnel & Mining Antennas
Uni-Directional Antennas
Siretta Antennas
Cellular Routers and Gateways
Advantech Routers and Gateways
Advantech ICR-1000 Series 4G LTE Routers and Gateways
Advantech ICR-1000 Series 5G NR Routers and Gateways
Advantech ICR-2000 Series 5G RedCap Routers
Advantech ICR-2000 v2 Series 4G LTE Routers and Gateways
Advantech ICR-3000 v3 Series 4G LTE Routers and Gateways
Advantech ICR-4000 v4 Series 5G Routers and Gateways
Advantech ICR-4000 v4 Series LTE-Advanced and LAN Routers and Gateways
Antennas & Accessories
EN 50155 Railway 4G Routers
Siretta 4G Modems
Teltonika Routers and Gateways
Enterprise rack-mountableSFP/LTE Routers
Industrial Cellular Modems
Industrial Cellular Routers
4G Routers and Gateways
5G Routers and Gateways
Industrial Ethernet Routers
Industrial Rugged 5G Gateways
Industrial Rugged LTE Gateways
Outdoor 4G Routers
RMS Credits and Data
Embedded Automation Computers
Accessories
Compact Embedded Box IPC, UNO-2 Series
Din-Rail Automation Controller, UNO-1 Series
Explosion-Proof Computer
Industrial IoT Edge Gateway
Rackmountable Fanless Box PCs (ECU-4000 Series)
Ethernet Serial Device Servers
Console Servers
Modbus Gateways
Serial Device Servers
USB Device Server
Wireless Device Server
Fiber & PoE Converters, Injectors, Extenders
Accessories
Industrial Media Converters
Intelligent Media Converters
Intelligent Modular Media Converters
Long Reach Extenders
Miniature Media Converters
PoE Injectors, Splitters and Extenders
SFP Optical Transceivers
Standalone Media Converters
Industrial Ethernet Switches
EN50155 Ethernet Switches
IEC61850-3 Ethernet Switches
Industrial PoE Switches & Solutions
Managed Ethernet Switches
Managed Ethernet Switches (Entry-level)
Teltonika Switches
Unmanaged Ethernet Switches
Industrial Protocol Gateways
EtherNet/IP Gateways
Modbus Gateways
OPC UA Gateways
IOT Sensors and Monitoring Solutions
Aranet Sensors and Base Stations
Aranet Base Stations
Base Station Accessories
Aranet Sensors and Monitoring devices
HW Group Monitoring Solutions and Sensors
Device and Sensor Monitoring Software
HW Group Monitoring Devices
HW Group Sensors
KVM
Cables
AV Cables
USB
Extenders and Line Drivers
USB Extenders
IP-Based KVM
Boxilla Enterprise-Level KVM and AV/IT Manager
Emerald‚® Unified KVM
Networking
SFPs
LoRaWAN and Cellular Sensors
Accessories
Adeunis Sensors and Monitoring
Adeunis Accessories
Adeunis LoRaWAN Sensors
Adeunis NB-IoT Sensors
Field Test Devices
Radio Modems
Advantech Sensors and Monitoring
Milesight LoRaWAN Sensors
Sensor Accessories
LoRaWAN IOT Gateways
Accessories
Adeunis LoRaWAN Gateways
Advantech LoRaWAN Gateways
Kerlink LoRaWAN Gateways
Solar Kits for Kerlink Gateways
Power Supplies
Serial / USB Communications
Serial Converters/Isolators/Repeaters - ULI-200
CANbus Isolator - ULI-238 Series
Data Tap/Splitter/Port Combiner - ULI-250/260
RS-232/422 to TTL/Current Loop Converter - ULI-227
RS-232 Isolated Repeater/Isolator - ULI-232 Series
RS-232 to RS-422/485 Converters - ULI-224 Series
RS-232 to RS-422 Converters - ULI-223 Series
RS-232 to RS-485 Converters - ULI-226 Series
RS-422/485 Isolated Repeaters - ULI-234 Series
Serial Accessories
Serial Surge Suppressors - ULI-240 Series
Serial to Fiber Converters - ULI-210 Series
USB Converters and Hubs
USB Converters/Isolators/Hubs - ULI-300/400
Industrial USB 2.0 / 3.0 Hubs - ULI-410 Series
Industrial USB 2.0 Isolators - ULI-420 Series
USB Accessories
USB to RS-232 Converters - ULI-320 Series
USB to RS-422/485 Converters - ULI-340 Series
USB to RS-485 Converters - ULI-350/360 Series
USB Converters/Isolators/Hubs - ULI-300/401
USB to RS-422/485 Converters - ULI-340 Series
USB to RS-485 Converters - ULI-350/360 Series
USB Modules
Siretta Cellular Testing Kits
Sentry Signal Analysers & Dataloggers
Snyper Cellular Coverage Testing Kits (5G, 4G, NB-IoT, CAT-M, 2G, GSM)
WAN Bonding by Bondix
Wireless and Gateways
Access Point/Client Bridges
Teltonika Access Points
Ubiquiti Airmax Access Points, Ubiquiti Wireless
Ubiquiti Airmax Access Points
Ubiquiti Airmax Access Points UAP Indoor, Ubiquiti Wireless
Ubiquiti MESH WiFi, Ubiquiti Wireless
Ubiquiti Airmax Point to Multi Point Antennas, Ubiquiti Wireless
Ubiquiti Airmax Point to Multi Point Antennas
Ubiquiti Airmax Point to Multi Point Omni Antennas, Ubiquiti Wireless
Ubiquiti Airmax Point to Multi Point, Ubiquiti Wireless
Ubiquiti Airmax Point to Multi Point
Ubiquiti Airmax Point to Multi Point Rocket, Ubiquiti Wireless
Ubiquiti Airmax Point to Point, Ubiquiti Wireless
Ubiquiti Airmax Point to Point
Ubiquiti Airmax Point to Point Nanostation Nanostationloco, Ubiquiti Wireless
Wi-Fi Accessories
Wireless Ethernet Bridges

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