RS-485 Bus Distributor Optical Separator 1 to 4 Outputs Active Signal Amplifier Splitter

Model: EWIMAR EW-485/4/1/SO

EAN: 6931240037270 SKU: 931037276

• RS-485 signal amplification from a single transmitter
• Signal splitting into 4 independent output buses
• Full 1 kV DC optical isolation between all ports
• 600W surge protection on ports and power supply
• Support for high transmission speeds up to 1 Mbit
• Possibility of using star topology in RS-485 networks
• Increase in maximum communication bus length
• Protection against atmospheric discharges
• Wide supply voltage range 9V - 24V DC

Description

The EW-485/4/1/SO is a professional, active RS-485 bus distributor designed for complex CCTV systems, access control systems, and building automation. This device plays a key role when there is a need to split a control signal from a single source, such as a digital video recorder (DVR), a control keyboard with a joystick, or a PC, into four independent branches. Thanks to the use of advanced signal amplification technology, the distributor allows for a significant extension of the maximum bus length, which is invaluable in large industrial facilities.

Specification

The use of the EW-485/4/1/SO enables changing the network topology from a classic bus (serial) to a star topology. This is a much more flexible and failure-resistant solution – damage or a short circuit in one of the branches does not affect the operation of the remaining system branches. The device supports transmission speeds of up to 1 Mbit, ensuring smooth and trouble-free communication even in the most demanding applications. The robust construction and wide supply voltage range (9-24V DC) make it a reliable product that is easy to adapt to existing power infrastructure. The distributor is an ideal solution for installers looking for reliable methods to secure and organise communication buses in modern surveillance and control systems.

The main advantage of the device is full optical separation of 1 kV DC. This isolation occurs not only between the input and outputs but also independently between each of the four output ports. This solution guarantees the highest level of safety, protecting end devices against the effects of atmospheric discharges, surges, and potential differences that often occur in extensive installations. As a result, a failure in one part of the system does not spread to the others, which drastically increases the reliability of the entire infrastructure.

Device type

Active RS-485 bus distributor and amplifier with full galvanic isolation

Number of inputs

1 pc. RS-485 - standard screw terminal for connecting the transmitter (e.g., recorder)

Number of outputs

4 pcs. RS-485 - independent output ports enabling the creation of a star topology

Galvanic separation

1 kV DC - provides protection against ground loops and potential differences between network segments

Optical isolation

Full isolation between input and outputs and independent isolation between each of the four outputs

Communication mode

One-way RS-485 (Simplex) - ideal for controlling PTZ cameras

Transmission speed

Support for high speeds up to 1 Mbit/s, allowing operation with modern communication protocols

Surge protection

Built-in 600 W protection on all RS-485 ports and the power input

Transmission range

The device regenerates the signal, allowing for significant bus extension beyond standard limits

Wide input voltage range from 9 V to 24 V DC, facilitating integration with CCTV systems

Possibility of switching from serial to star topology, which facilitates cabling in large facilities

Topology

Low power consumption at 150 mA with 12 V DC power supply

Power supply

CCTV systems (PTZ control), alarm systems, access control, industrial automation

Current consumption

Protection against atmospheric discharges and the effects of electrical failures at remote bus points

Application

EWIMAR brand, product covered by a 2-year manufacturer's warranty

Protections

1x EW-485/4/1/SO bus distributor

Contents

Manufacturer and Warranty

Dimensions, Weight

Product dimensions: 32 x 107 x 83 mm (D x W x H)

Packaging dimensions: 50 x 160 x 115 mm (D x W x H)

Product weight: 93 g

Weight with packaging: 139 g

Zum Download

• CE Declaration
• SAFETY COMPLIANCE