DIGITAL MATRIX SWITCH (D-MATRIX)
OVERVIEW
 The RT Logic Telemetrix® Digital Matrix (D-Matrix) Chassis provides a quick and easy solution to implement digital switching and monitoring within the Telemetrix and Autometrx® framework. It provides a fast array of configurations that can be used to propagate and convert digital RS-422 and TTL signals to multiple users and test points. The boards inside the chassis are based off Xilinx Spartan 3 Field-Programmable Gate Array (FPGA) and provide an Ethernet control interface. The D-Matrix comes in three different configurations of matrix switches, each defined below.

APPLICATION
 Many times in test systems and ground equipment, requirements exist to route and fan digital signals to units under test, multiple external users, remote and local test points, and internal rack signal routing. The D-Matrix meets these requirements. It can be used on both red and black applications where digital signals are routed to various components used for data processing, monitoring, and signal extraction.

The D-Matrix can route baseband signals to monitoring panels that allow the users a visual go/no-go indication with no signal degradation to mission traffic. The D-Matrix switch can be used to match end-user unique impedance requirements and provide unique signal conditioning. The D-Matrix provides a low-cost solution to digital signal routing of Telemetry, Tracking, and Commanding (TT&C) rack assemblies and systems provided that the D-Matrix specifies a single location to route all baseband digital signals within a larger system.
BLOCK
DIAGRAMS





SPECS
I/O Connectors
TCP/IP

2 boards

  • 4 SCSI 68 Female
  • 32x32 Non-Blocking
  • 4 Custom TTL
  • 16 Scope/Monitor Points
  • ENET Control
4 boards

  • 8 SCSI 68 Female
  • 64x64 Non-Blocking
  • 4 Custom TTL
  • 32 Scope/Monitor Points
  • ENET Control
6 boards

  • 12 SCSI 68 Female
  • Dual 64x64 Non-Blocking
  • 4 Custom TTL
  • ENET Control
Firmware
  • Xilinx Spartan 3 XC3S1000-FG456-4
Control
  • Lantronix X Port using TPC/IP with full configuration
 Software Control
  • Optional Telemetrix CORBA, Java Graphical User Interface
Indicators
  • One Configurable LED
  • One FPGA Status Indicator
Electrical Characteristics
  • Standard TTL 5 Volt Signals 2.0 To 5.5 Logic High, -0.5 To 0.8 Logic Low
  • TIA/EIA-433-B And ITU-T V.11 Compliant Interoperable With Existing 5v RS-422 Networks; Conforms To Military And Industrial Temperature Ranges
Power (Typical)
  • 120v ac
Data Rates
  • 10 MHz RS-422
  • 1 MHz TTL
Impedance
  • RS-422 Receiver Impedance 100 Ohms (Optional Impedance Matching)
Operating Environment
  • 0 ºC To 50 ºC
  • 10% To 90% Relative Humidity