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V4718

New

VME to USB 3.0/Ethernet/Optical Link Bridge

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Features

  • USB 3.0, Gigabit Ethernet and CONET (CAEN Daisy Chainable Optical Link Protocol) interfaces
  • Designed for high performances at high transfer rates
  • Compliant with A2818, A3818 and A4818 cards for optical link control
  • Up to 8 VME crates controlled by 1 CONET link
  • VME Master (arbiter or requester)
  • Cycles: RW, RMW, BLT, MBLT, IACK, ADO, ADOH
  • Addressing: A16, A24, A32, CR/CSR, LCK
  • Data width: D8, D16, D32, D64
  • System Controller capabilities
  • Interrupt handler
  • Transparent interrupt propagation from VME to PCIe
  • Front panel Dataway Display (remotely readable from PC)
  • Front-panel LEMO TTL/NIM fully programmable I/Os (4 outputs and 2 inputs)
  • Fully remotely controllable by Web Interface
  • Libraries, Demos and Software tools for Windows ® and Linux ®
  • Custom software can run directly on the embedded Linux-based MPSoC
More info
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Overview

The CAEN Mod.V4718 is CAEN New Bridge with enhanced data rate and extended interfacing capabilities, thanks to the on-board MPSoC (including an ARM processor running Linux). The board is a VME Master which can be controlled by an external PC via USB 3.0 and Gigabit Ethernet connections. Optical link interface is also available (CAEN CONET protocol). The mechanics is 1-unit wide VME 6U.

The optical link connection between the V4718 and the host PC requires the A4818 USB3-to-CONET Bridge and an optical fiber cable (AI2700 – Optical Fiber Series). The V4718 is also compatible with CAEN A3818 PCI Express CONET Controller and CAEN A2818 PCI CONET controller. Multi-crate sessions can be easily performed thanks to the optical Daisy chain capability: up to eight V4718 units can be controlled by a single A2818/A3818/A4818 building a CONET Optical Network.

The V4718 can perform all the cycles foreseen by the VME64 standard except those intended for 3U boards. The Bridge can operate as VME System Controller (normally when plugged in the slot 1) acting as a Bus Arbiter in Multi-Master systems. The activity on the VME bus can be monitored in detail both locally (through an 88-LED DataWay Display) and remotely.

The front panel of the V4718 hosts 6 TTL/NIM programmable I/OS on LEMO connectors: four outputs (default assignment is: DSN, AS, DTK, BERR) and two inputs. The I/Os can be programmed via USB, Ethernet and Optical Link to implement functions like Timer, Counter, Pulse generator, I/O register, and others.

It is possible to integrate the V4718 into the most common Windows® and Linux® computers by CAEN dedicated drivers. Middleware libraries and useful example demos are also provided. Moreover, the presence of an embedded Linux- based CPU gives the chance of running custom software directly on-board.

The user can completely set and monitor the V4718 by Web Interface, including the firmware upgrade.

Technical Specifications

PHYSICAL
Form Factor 

1-unit wide VME 6U 

 Weight 

350 g
PC INTERFACE
USB 

USB 3.0
Type-C socket

 Ethernet 

Gigabit Ethernet
RJ45 shielded jack

 Optical Link 

CONET (CAEN proprietary protocol)
SFP+ connector
TRANSFER RATE

Maximum transfer rate with a CAEN slave readout in MBLT64:

  • Up to 80 MB/s via CONET2
  • Up to 60 MB/s via USB 3.0
  • Up to 60 MB/s via Ethernet
ON-BOARD CPU

Xilinx Zynq® UltraScale + MPSoC (Multiprocessor System-on-Chip)

ADDRESSING

A16, A24, A32, CR/CSR, LCK; ADO, ADOH cycles

DATA CYCLES

D08, D16, D32 for R/W and RMW; D16, D32 for BLT, D64 for MBLT

INTERRUPT CYCLES

D08, D16, D32, IACK cycles

INTERRUPTS TRANSFER AND MONITOR
Optical Link 

VME interrupts IRQ[7:1] passed directly from VME to the PCIe bus via optical link;
host system is notified asynchronously (polling not required)

 USB 

VME interrupts are not directly passed to the PC; host system has to poll IRQ[7:1] via USB 
Ethernet

VME interrupts are not directly passed to the PC; host system has to poll IRQ[7:1] via  Ethernet
LED DISPLAY

Data bus, address bus, address modifier, interrupt request, control signals

PANEL I/Os
OUT[0:3] 

4 signal outputs 

Single-ended NIM/TTL (Zin = 50 Ω) 

LEMO 00 female socket 

Software programmable 

 IN[0:1] 

2 signal inputs 

Single-ended NIM/TTL (HW programmable)

Zin = 50 Ω or 1 kΩ hardware selectable

LEMO 00 female socket 

Software programmable 
SOFTWARE
  • Windows® and Linux® support
  • Drivers for the CONET communication link
  • Web Interface (board configuration, firmware upgrade, read/write access to the VME bus)
  • Middleware C/C++ libraries
  • Linux OS embedded on ARM processor
POWER REQUIREMENTS

1.3 A @ +5V
50 mA @ +12V
180 mA @ -12V

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Code Description
WV4718XAAAAA V4718 - VME64-USB 3.0, Ethernet and Optical Link Bridge   RoHS

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