Optically Isolated RS-485 PLC Converter
This PLC optical isolation link connects easily between your Allen-Bradley model SLC 500, 5/01, 5/02 or 5/03 and your RS-485 network. It protects your PLC against ground loops, spikes and surges from data and control lines. Compare this unit to 1747-AIC.
The compact case may be mounted on a DIN Rail or panel. The included 2 foot cable connects the RJ45 socket of the isolator and your PLC. Terminal blocks provide the RS-485 link to the network. No power is required as the module draws power from the PLC. An external power supply (not included) may also be used.
Handheld devices, PCs or laptops may be connected to the RS-485 network through the RJ45 port by using a B&B Electronics Model 232ABRJ45 converter.
RS-232 to RS-485 PLC Converter
Industrial RS-422/485 Optically Isolated Repeater
Add 4000+ foot range and 32+ node capability
Optically isolated to protect two or four wire RS-422 and RS-485 equipment against 2000 volts for one minute.
As a signal repeater, Model 485OPIN allows you to double the range and number of nodes on your system up to 8,000 feet and 64 nodes.
Conventional stand-off panel mounting or, with SNAPTRACK mounting extrusion and adapter clips, DIN Rail mountable.
2.8 x 4.6 in for compatibility with SNAPTRACK. Requires 9-14 VDC power at 60 mA (idle state) to 170 mA maximum draw.
RS-232 Serial to Current Loop Converter
Current loop signals often can transmit over circuits that serial signals can’t traverse reliably, due to distance, marginal conductors and electrical noise. Model 232CLDR interfaces RS-232 to the most common current loop ports, 20mA with open circuit voltages up to 30 V. Contact B&B Technical Support for information on higher loop currents and voltages. Maximum baud rate for current loop converters is 19.2 kbps.
The transmit loop and receive loop each can be operated as active or passive. All connections are made on terminal blocks. A single power supply (not included) between 10 and 30 VDC can power the converter and both current loops.
Port Powered RS-232 to RS-485 Converter
These port-powered converters change TD and RD RS-232 lines to RS-485 signals. All are port powered and feature Automatic Send Data Control. SDC automatically enables the RS-485 driver when data is present on the RS-232 side. Control of the driver is automatic at rates up to 115.2 kbps.
Port Powered RS-232 to RS-422 Converter
No power supply required
Convert RS-232 TD and RD signals to RS-422, allowing range to be increased from the 50 feet specified in the RS-232 standard to 4,000 feet at data speeds up to 115.2 kbps. No handshake driver control is required as the RS-422 driver and receiver are always enabled.
These port powered models require no external power supply, drawing power from the RS-232 handshake lines. If no handshake lines are available, choose Model 422PP9TB or 422LPCOR and connect a 12 VDC power supply to the terminal block.
Non-isolated RS-232 to RS-485 Converter
These converters are perfect for applications that don’t require isolation or port-powered capability. All models include Automatic Send Data Control, eliminating the need for software modification.
Model 485COSR is an economical converter that supports both 2-wire and 4-wire RS-485 communications. There is also provision for constant enable of the receiver during transmit for full duplex operation.
Model 485TBLED is one of our most popular models with data traffic LEDs, RS-422/485 support, and either Automatic Send Data Control or software driver control.
Model 485PTBR has a convenient terminal block that quickly unplugs from the converter for ease of wiring.
Model 485CSP2 features both surge controlled and fused data lines on the RS-422/485 side plus all the features of model 485TBLED.
Intelligent Smart Switch
Model 232BSS4, our most versatile and intelligent smart switch. A single RS-232 port on your PC can now communicate seamlessly with four or more RS-232 devices.
Once configured, simply run your existing application software to converse with each device as if it was directly wired to your PC.
When used with B&B Electronics RS-485 or fiber optic converters, the Model 232BSS4 smart switch may be connected to PCs or serial devices miles away. Requires 12 VDC power. Model 232PS is recommended.
Model 232XS5 is a five-port smart switch. Its master port may be configured as either a DTE or DCE port. If the master port is DTE, the five other ports automatically become DCE ports. The port expansion feature allows cascading of up to four Model 232XS5 switches to provide up to 17 addressable RS-232 ports from a single PC port.
a compact four port mini switch. Its master port may be configured as either a DTE or DCE port. If the master port is DTE, the four other ports automatically become DCE ports. This model offers enhanced features that automatically control transmit/ receive functions, stop inadvertent switching from binary/graphic file transfers and inactive slave devices from holding control of the master port.
Model 485DSS is a distributed smart switch. Use this model when your RS-232 devices are scattered. The Model 485DSS uses RS-485 technology to reach RS-232 peripherals up to 4,000 feet away. Each switch has a unique address. A simple serial command from your host turns communications on or off or requests status. QuickBasic demo software is included.
Five-Port Smart Switch
Compact Four Port Mini Switch
