SCATS® Traffic Signal Controller Communications

Product Description

DPX-596-01 (standard) and DPX-596-02 (SCATS®) Router

Wireless 4G/5G, Bluetooth (AddInsight®) and Wi-Fi optional (future)

Dual SFP Fibre (NBN compatible – Australia) Managed Router (in development)

Overview – Rev 1.7 Aug 2023


The Dataplex DPX-596 is a reliable high-quality, high-speed LAN/WAN router for SCATS® and/or non- SCATS® industrial applications. The compact multi-application design gives diverse data connectivity.


  • DPX-596-01 Intended for standard (non-SCATS®) applications, g., CCTV, VMS/VSLS etc.
  • DPX-596-02 has the male DE-9 connection and SCATS® serial protocol interface code, SD card configuration and DPX_Configure interface for console operation.


DPX-596 delivers high-speed wireless 4G LTE / 5G (4/5G – potentially supporting several module brands and types) with Wi-Fi and Bluetooth sensing optional. Fast connectivity provides low latency and high- performance for applications such as live streaming traffic flow and motorway CCTV cameras etc.


Optional Dual SIM* for 4G LTE or 5G modem capability allows connectivity redundancy. Multiple networks can operate simultaneously. Redundancy can be supported via timeout and switchover or dual-homed IP paths.


Dual SFP slots facilitate connection to National Broadband Network – Australia (NBN) FTTP links; alternatively support single or multiple-ring topologies/applications for e.g., motorways or rail corridors.


Supports ADSL2+/VDSL2 via SFP or M.2 modem module. DPX-596-02 supports SCATS® serial to Ethernet conversion.


  • 4G/5G dual SIM capable operation with optional dual SIM cards (* depends on Mobile Broadband module used, if dual SIM is supported). Standard SIM card with be offered (Q3 2023).
  • Provision for
  • 2 x SFP for Fibre modules g., NBN FTTP (Fibre) GPON interface or OT Fibre network
  • SD card for configuration and storage (single SIM version)
  • 4 x Gigabit Ethernet LAN/WAN ports
  • Dedicated 1 x TIA-232 DE-9 DTE male for serial connections DPX596-02 offers serial Traffic Signal Controller (TSC) for SCATS® communications.
  • 1 x USB-A (compatible with serial converters) and 1x USB-C (console)
  • 4G/5G wireless can provide backup to NBN FTTP or OT Fibre network
  • Optional 2 internal ADSL/VDSL Option (ADSL/2/2+ Annex A/M, VDSL2, Vectoring & Profiles 8,12,17a,35b)
  • Optional (future development) Wi-Fi/Bluetooth (AddInsight® compatible) module for traffic
  • CLI console interface via OpenWRT
  • Intelligent network monitoring allows DPX-596 to re-connect automatically or failover to an alternative path. SNMP v3 supported. (DPX-596-02 will have DPX_Configure available Q3 2023).




DPX-400-SxD SCATS® modem


(TfNSW Type Approval certificate number: ITS-TAN000120 spec TSI-SP-018 Rev 4.0)

DPX-400-SxD Overview

  • The DPX-400-SxD is designed to be in accordance with TfNSW Specification: TSI-SP-018 Rev 4.0 with TfNSW
  • Type Approval TfNSW TSI-SP-018 Rev 4.0 (ref ITS-TAN000120)
  • Dual SIM Mobile Broadband (two network provider 4G back-up and restoral) – used if ADSL2+/VDSL2 lines go down
  • Super Capacitors for “brown out” protection (up-to 10 seconds)
  • Bluetooth MAC address collection for AddInsight applications
  • I/O blocks 2 x 12V source plus 3 Input’s and 3 Relay Outputs
  • Supporting VC4/VC5/ VC6 TSC’s regardless of firmware age.
  • ADSL2+/VDSL2 module tested (and passed) by Telstra-Lab NBN (Melbourne) in 2019 before inclusion

Power Protection

  • Input power filtering covering noise, transient suppression and pulses coming down the line.
  • 240VAC protection short circuit and failure 2A fused.
  • Common mode and differential mode protection
  • Transient protection 8/20uS pulse.
  • Max input protection current 6KA (1pulse) 1KA (50pulses)
  • This value is the aging of the varister Clamp voltage 800V.
  • Both X & Y safety capacitors are fitted.
  • Mains pulse testing can be performed without the system on as the mains protection is an independent circuit

Lightning Protection

  • Two levels of internal lightning protection – field replaceable 1st level GDA
  • (Gas Discharge Arrestor) for common & differential protection and varistor across line to ground
  • Integrated router has 2
  • nd level DC blocking caps, TVS and GDA
  • DPX-400-SxD unit has excellent surge/lightning protection (Surge/flicker/transient), this protection ensures connection speeds remain high.

Visual Indicators (LEDs)

  • The Front panel is designed to have a simplified section of indicators that provide sufficient information for fault diagnosis and operational qualification.
  • Critical functions use Variable intensity Coloured (Red/Green/Amber) LEDs which provide unambiguous and good visibility in direct sunlight.






The DPX-3890 is designed to be connected, via a serial port, to multiple remote controllers, consisting of DPX-213-iPS devices. This is connected back to the SCATS® Regional Computer via a distributed Ethernet network using Ethernet Switches. Each of the DPX-3890-01 devices has a separate IP address to ensure that SCATS® can control, transmit and receive correct data from the unit.

Permanent Dial-up is robust and simple replacement communications solutions. It is quick to deploy with deployment records showing that approximately five sites per hour is easily achievable.

The DPX-213-iPS: Controller-end Device

The DPX-213-iPS features:

  • Internal Power Supply – 180 ~ 280V AC 50Hz (30mA)
  • Rugged metal case
  • Remote configuration
  • Compact size (Width x Depth x Height)- 200mm x 130mm x 55mm
  • MNP error correction and data compression
  • Automatic terminal speed detection from 300 to 9,600bps
  • Data operation at 300, 1200, and 2400bps
  • CCITT (International Telegraph and Telephone Consultative Committee) standards V.21, V.22, and V.22bis
  • Bell 103 and Bell212 support
  • Power hold-up feature: Holds power for up to 20 seconds with full operation
  • DTR raise and AT command dialling
  • Help notes on configuration, S-registers, and AT prompts
  • Manufactured to ISO-9001:2000 Quality Standards and Quality Management Systems requirements
  • RTA Type Approval number: 200808-SP021-2.0-1
  • Office and Fair Trading – Certificate of Suitability – CS9038
  • AS/NZS 60950.1:2003 safety approved
  • RFI compliant to Surge test: AS/NZS 61000-4-5:2006 and AS/NZS CISPR-22:2006
  • Environmental Test Certificate Number: Vipac 20E-08-0108-COC-736243-0
    • Humidity: Accordance with RTA Specification TSI-SP-021 (-10 ~ +70 degrees) 90% Humidity
    • Vibration: Accordance with IEC60068-2-6
    • Bump: Accordance with IEC60068-2-29

The DPX-3890-01: Regional Computer End

The DPX-3890-01 is a modem rack designed to provide a network connection to the SCATS® regional computer, effectively eliminating the need for multiplexers and therefore allowing for significant cost savings as well as attending to the criteria established above.


The unit is 1 rack unit in height and can fit into a standard 19-inch rack – (Width x Depth x Height): 435mm x 370mm x 44mm.


The DPX-3890-01 has:

  • Eight two wire line modems which can carry user serial data to and from remote modems and any connected equipment
  • An on board line isolation for each of the two wire line modems
  • a 10M/100M Ethernet Port for connecting to a local computer, to carry user serial data and/or control and monitoring data for the unit
  • TCP/IP Protocol layers and infrastructure on Ethernet

It can also:

  • Be compatible with RTA DIDO units (Dial-in/Dial-out)
  • Switch user data to and from the two wire line Modems and the Ethernet Port, based on IP addresses and TCP ports
  • Have the operational settings of the two wire Modems, Ethernet Port etc. configured by the user via SCATS®
  • Allow a user to set the initial configuration of the unit, and/or allow local upgrading of a unit’s firmware via an RS232 Local Maintenance Port
  • Be powered by 240V AC 50Hz
  • Be fitted into a 19-inch 1 Rack Unit sub-rack or enclosure, capable of being fitted into a standard 19-inch equipment rack.
  • There is an option to have eight RS232 serial Data Ports, which can carry user serial data to and from any connected equipment and allow the user to: switch data to and from the RS232 Serial Data Ports and the Ethernet Port, based on IP addresses and TCP ports
  • Switch data to and from the RS232 Serial Data Ports and the two wire line modems, based on IP addresses and TCP ports.


SCATS® (Sydney Coordinated Adaptive Traffic System) is a registered trademark of the “TFNSW” (Traffic for NSW)