Products · SSP-8RJ

One serial data source. Two operational destinations.

The ACTERA SSP-8RJ is a compact DIN-rail serial splitter designed to distribute RS-232 communication through three shielded RJ45 connectors. It provides a practical integration path where data from one serial field device must be available to two host systems, or where one host must communicate with two terminal devices in a suitable serial topology.

ACTERA SSP-8RJ industrial three-port RS-232 serial splitter with shielded RJ45 connectors and DIN-rail mounting.
One Field Interface. More Than One System.

Many established SCADA and industrial systems depend on field devices equipped with a single RS-232 interface.

The SSP-8RJ allows one data-acquisition device or field interface to be connected to two host computers. Both hosts can receive data from the connected device, while only one host may transmit at a time.

The splitter can also be used in a one-host-to-two-device arrangement where the connected equipment, serial protocol and cable topology permit that mode of operation.

No software driver is required.

Critical Interface Notice

The RJ45 connectors carry RS-232 signals. They are not Ethernet ports. Only cables manufactured according to the ACTERA SSP-8RJ pin assignment should be used.

Key Capabilities

Three Shielded Serial Connections

Three female shielded RJ45 connectors carry RS-232 signals.

Eight RS-232 Signal Lines

The interface supports CTS, DSR, GND, RxD, TxD, DCD, DTR and RTS.

Flexible Port Assignment

Each port can be used in a DTE or DCE role according to the cable and connected-device configuration.

Driver-Free Operation

The SSP-8RJ operates at the physical serial-connection level and requires no software driver.

DIN-Rail Installation

The compact housing is designed for installation inside control panels and communications cabinets.

Custom 19-Inch Assemblies

Multiple SSP-8RJ modules can be integrated into tailored 19-inch SCADA assemblies for projects requiring repeated RTU-to-multiple-host connectivity.

Technical Specifications
Product modelACTERA SSP-8RJ
Product typeIndustrial 3-port serial splitter
Serial interfaceRS-232
Number of ports3
Connector typeShielded female RJ45
Supported signalsCTS, DSR, GND, RxD, TxD, DCD, DTR, RTS
Port assignmentDTE or DCE according to cable configuration
Software driverNot required
MountingDIN rail
Dimensions22 x 82 x 43 mm
Weight30 g
Custom integrationTailored 19-inch SCADA assemblies
RS-232 RJ45 Pin Assignment
Pin 1
CTS
Pin 2
DSR
Pin 3
GND
Pin 4
RxD
Pin 5
TxD
Pin 6
DCD
Pin 7
DTR
Pin 8
RTS

Use the serial interface already in the field - where more than one system needs the data.

ACTERA can review the connected equipment, cable pinout, DTE/DCE arrangement and permitted transmission topology before deployment.