NTDS Equipment Matrix Interconnect System (NEMIS™)

The complex interfaces of a navy computer lab have never been easier to manage than with the NTDS Equipment Matrix Interconnect System (NEMIS) from Sabtech. The NEMIS is a high-throughput 32 X 32 port matrix switch for MIL-STD-1397C interface types A, B, C, D and E. Each port consists of a full duplex input/output path that can be linked to any other port of the same type. NEMIS provides non-blocking, full data rate connections even under peak loads with all ports active simultaneously. NEMIS can work with long or non-NTDS compliant cables because it utilizes active matrix circuitry and completely regenerates all signals to compensate for signal degradation.

NEMIS can be configured to meet the switching needs of practically any site. Ports are organized in modules containing four ports of the same NTDS type. Up to eight modules of various types can be inserted into the NEMIS chassis to provide a custom switch configuration. When equipment or lab layout changes are required, NEMIS can be easily adapted by changing the mix of modules that populate the chassis.

Upon power up, each module of the switch will perform a self-test and indicate Pass/Fail status on its front panel LEDs. There are no operator controls on the switch itself. NEMIS is controlled via an RS-232 serial port using a simple text-based command language that can be readily integrated into controller software currently in use at many navy labs.

NEMIS is designed to make it easy to setup and maintain, even while it is in use. Each module contains all the electronics and interface connectors for a group of four ports. Modules can be powered down individually and removed without disturbing active communication on other ports. The ability to hot-swap modules allows the lab to keep running efficiently even when maintenance or switch reconfiguration is required. Ample connector spacing eliminates the need to remove cables from adjacent ports to gain access to the desired set of cables.

When repairs are necessary, major components of the module may be swapped out quickly, keeping the Mean Time To Repair (MTTR) around 30 minutes or less. For added reliability, NEMIS has redundant power supplies, each of which can power the entire switch. In case of a failure, the failed power supply module can be swapped out while the switch is in use. Where availability of lab resources is critical and downtime is costly, Sabtech’s NEMIS provides the flexibility, simplicity and high uptime to meet the daily operational demands of the navy’s labs.



NTDS Equipment Matrix Interconnect System(NEMIS)


NEMIS 32 Port NTDS Switching System Features

• 32 X 32 port matrix switch
• Supports MIL-STD-1397C NTDS interface types A, B, C, D, and E
• Connects any input port to any output port of the same type
• Simultaneous non-blocking, full data rate operation on all ports
• Four ports of the same type in each module
• Mix up to eight modules of any type in a NEMIS chassis
• 100% signal regeneration compensates for signal degradation from long or non-NTDS compliant cables
• Hot-swap modules without disrupting other active ports
• Connect & disconnect cables without removing cables from adjacent ports
• Modular design simplifies maintenance and reduces downtime
• Redundant power supplies for added reliability
• Serial RS-232 port for switch control
• Simple text-based command language, compatible with existing navy switch controllers
• Front panel Pass/Fail indicators
• Stand-alone rack or mount into a standard 19” rack

NTDS Equipment Matrix Interconnect System Specifications