ELTEC BAB-740 11887 REV F PMCE-740

Product Short Description

Product Name: ELTEC BAB-740 / PMCE-740, VMEbus PowerPC CPU Board with PMC Slots

Product Introduction: The BAB-740 is a high-performance VMEbus single-board computer manufactured by ELTEC, featuring a PowerPC CPU 740 processor, dual PMC daughter card slots, and comprehensive I/O capabilities. The “11887 REV F” denotes the specific board revision, and “PMCE-740” references the PMC carrier/expansion architecture. It is designed for mission-critical industrial, aerospace, and defense applications requiring robust computing power.

Description
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Description

Technical Specifications:

Board Type: VMEbus board with two PMC daughter card slots (optional)
VMEbus Slots Used: Two
CPU: PowerPC CPU 740 @ 266 MHz
RAM: 8–256 MB DRAM (2 × 64-bit SO-DIMMs, EDO/SDRAM 50 ns)
Cache: 512 kB on-board
PCI Host Bridge: Motorola MPC106
PCI-ISA Bridge: W83C553
PCI-to-VME Bridge: Universe II for fast, global VMEbus transfers
Flash EPROM: 2 MB on-board (byte access, hardware-implemented)
Network Interface: DEC21143 Ethernet (10/100 Mbps) with PCI-DMA, 10BaseT front panel connector
Serial Synchronous (optional): 2 × RS422 / 3 Mbps using Zilog 85230 ESCC
Serial Asynchronous: 2 × RS232 with PC97307
Real-Time Clock: MK48T59
SCSI (optional): Symbios 860
Operating Systems: OS-9 with FasTrak cross development system, VxWorks with Tornado cross development system

Material Composition & Structure:

Dual PMC daughter card slots allow flexible I/O expansion
VMEbus form factor (typically 6U)
Occupies two VMEbus slots
Ruggedized construction for industrial environments

Functional Features:

High-performance PowerPC processing at 266 MHz
Decoupled PCI-to-VME bridge for fast, global VMEbus transfers independent of board-internal PCI transfers
Up to 256 MB DRAM for memory-intensive applications
Optional SCSI, serial synchronous/asynchronous interfaces
I/O-compatible with BAB-40/60 where applicable
Supports PMC mezzanine cards for customizable I/O expansion

Application Scenarios:

Aerospace & Defense: Radar signal processing, flight control computers, electronic countermeasures
Industrial Control: Robotics control, motor control, sensor data acquisition
Test & Measurement: Electronic device testing, signal analysis
Data Acquisition: High-speed data collection from sensors and instruments
Image Processing: Image and video data processing

Installation Requirements: Install into a standard VMEbus chassis occupying two slots. The two PMC daughter card slots allow addition of specialized I/O cards. Connect Ethernet via 10BaseT front panel connector. Configure boot parameters via serial console (RS232).

Usage Precautions: Given its VMEbus architecture and specialized nature, the BAB-740 is typically refurbished-only in current markets with limited new stock. Verify board revision compatibility (“REV F” specifically) with existing system backplanes. Ensure proper VMEbus termination in the chassis. Operating environment should be controlled for temperature and humidity per VMEbus standards. Due to the age of the PowerPC 740 architecture, this is considered legacy hardware suitable for maintenance/retrofit of existing installations rather than new designs.