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Specifications

1.1 DESCRIPTION

1.1.1 VXI-5534 Quad Serial Interface Module

The VXI-5534 Quad Serial Interface Module provides four separate serial interfaces in a single wide

VXI module. Each interface has its own logical address and can be independently programmed or

addressed for data transfers. Each serial interface operates in a command mode or data mode. In the

command mode, the serial interfaces accept configuration commands and status queries. All settings

can be saved in nonvolatile memory for recall at power turn-on time. In the data mode, the serial

interfaces provide transparent data transfer. Data transmission can be either direct or buffered for

later output upon receipt of a VXIbus trigger. Received data is buffered in the VXI-5534's memory

for transfer to the VXI controller. Each interface channel can be programmed to generate a VXIbus

Interrupt upon receipt of a serial message or data. A four character LED display shows device

addresses, interface status and error conditions.

Each of the VXI-5534's Serial Interfaces provides RS-232, RS-423 or RS-422/RS-485 compatible

signals for asynchronous data transmission. Baud rates, character formats and transmission mode

are independently programmable for each channel. An internal baud rate generator provides

standard rates up to 115.2 Kbaud and custom baud rates up to 153.6 Kbaud. Internal termination

networks can be switched into each channel's transmit and receive data lines for RS-422/RS-485

operation. Standard units have 10 Kbytes of buffer space for each channel which can be expanded

up to 40 Kbytes per channel with the -M memory option.

Although the VXI-5534's hardware is capable of operating with asynchronous data transmission,

synchronous bit oriented protocols and synchronous byte oriented protocols, the VXI-5534's

standard firmware only provides for asynchronous data transmission. Extension of the VXI-5534

for operation with synchronous data transmission protocols requires additional custom firmware.

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Samsung SMO-150QP Spezifikationen Seite 10