RSMUX2 Optical multiplexer with 4x RS232/422/485 serial interfaces

The RSMUX2 from Bitstream is a multiplexer with four RS232/422/485 streams into fibre. The Multiplexer allows connection of RS232/422/485 serial interfaces over fibre links with the maximum distance of 100km and provides complete isolation between devices and resistance to disturbance occurring along transmission path. Devices with two optical interfaces can be connected to create point to point protection connection, or ring protection connection. Optimized protection algorithm allows for detecting any faults of the connection and its restoration after removing the fault.

RSMUX2 also performs the function of converting any signals involving the exchange, for example, RS-232 to RS-485 or RS-422, which is realized by means of two devices working in pair.

Slow mode - this feature allows you to significantly increase the range for MM fiber, up to 10km, but at the expense of maximum RS data rate.

The converter also works with devices from security systems such as BS-MC-5X. The RSMUX2 provides fully transparent RS data stream transmission, independent of such parameters like bitrate, number of data bits, stop bits and parity. Each serial interface is sampled with a frequency of 20Mhz, which allows on data throughput of the RS to 230.4 Kbps (RS-232) and 2Mbps (RS-485/RS422) with +/-60ns pulse time distortion. RS485 ports can be set up for 2-wire or 4-wire.

Depending on the device version, multiplexer can work in point to point (with optical path protection), bus and ring topologies. Parameters of serial interfaces can be configured through DIP switches. In addition, each RS interface has two independent LEDs indicating the activity on receiver and transmitter lines, which simplifies the process of installation, commissioning, and maintenance.

The BS-MX-110 comes in multiple variants, to quote an exact model please provide a part number using the designations in the attached data sheet:

RSMUX2 Part Numbers

The RSMUX2 supports the following standards and protocols:

EIA-232, EIA-422, EIA-485, Profibus, Modbus,PN-EN 55022:2010/AC, PN-EN 55024:2011/A1:2015-, PN-EN 60950-1:2007/A2:2014-05, EMC 2004/108/WE,  LVD 2006/95/WE, PN-EN 60825-1:2014-11. IEC 61000-4-2, IEC 61000-4-3,  IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6, IEC 61000-4-8, IEC 61000-4-11, IEC 61000-4-12, IEC 61000-4-29.