6U VME D/S, S/D, I/O & Comm Board

6U VME D/S, S/D, I/O & Comm Board

Model 6U VME 64CS4

6U VME D/S, S/D, I/O & Comm Board

Five I/O and communication function module slots—
A variety of different modules to choose from


NAI’s 64CS4 is a 6U VME Multifunction I/O board designed for applications requiring Digital-to-Synchro/Resolver (D/S) stimulus output, as well as I/O and communication functions. This board contains five intelligent, function module slots. The board can be configured for 10 D/S channels, or for D/S in combination with I/O and communication modules. Additional enhancements include FIFO data buffering for select modules. Using multiple DSPs, the enhanced motherboard enables higher processing power and dedicated pre-processing control for each module.

By eliminating the need for multiple, specialized, single-function boards, this unique design increases packaging density, saves enclosure slots, and reduces power consumption. The 64CS4, a low-power/high-performance board, is ideally suited for rugged defense, commercial aerospace, and industrial applications.

Preexisting, fully-tested functions can be quickly and easily combined in an unlimited number of ways. Each I/O function has dedicated processing, unburdening the system Single Board Computer (SBC) from unnecessary data management overhead.

The 64CS4 includes Software Support Kits (SSKs) for multiple operating systems. In addition, SSKs are supplied with source code and board-specific library I/O APIs to facilitate system integration.


  • Support for 5 independent, intelligent function modules
  • A variety of I/O and communication modules to choose from
  • Up to 10 D/S channels with:
    • On/off output capability
    • Individual reference inputs per channel
    • Rotation with start and stop angles
    • Voltage and frequency settings per channel
  • Control via either VME Bus or dual Gigabit Ethernet (Gig-E) interfaces
  • Programmable, multi-speed ratio between 2 and 255 for S/D and D/S functions
  • FIFO data buffering for A/D, D/A, S/D, and LVDT functions
  • Connections via front panel, rear panel, or both
  • On-board 5 VA programmable reference power supply (optional)
  • Automatic Background Built-in-Test (BIT) (module dependent)
  • Software Support Kits (SSKs) and drivers available
  • Commercial and rugged models
  • Operating temperature: 0° C to 70° C commercial, or -40° C to +85° C rugged
Document DownloadsDate
64CS4 Data Sheet
64RTCS4 (Rear Transition Card) Data Sheet
64CS4 Specifications
64CS4 Operations Manual
Complete manual that includes all available function modules.
E7 Module Users Guide Addendum
NAI Ethernet Interface for Embedded IO Boards Specification
VME Board Addressing Sheet

Note: Linux Driver(s): All Linux driver / source code are provided as is without change support.
News ItemsDate
Board and Box Level Systems Face SWaP Design Challenges
Reducing size, weight and power of military systems remains a challenge, especially when shrinking budgets are putting pressure on costs.
Distributed I/O Data and Processing Architectures
Modern military platforms continue to place an ever greater reliance on electronics for their operation.