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Showing 11–14 of 14 results

  • PCL-847B – 4 Port RS-422/485 Card SurgeP

    230,00  Excl. VAT

    Features PCL-847B:

    • Four independent RS-422/485 serial ports PCL-847B
    • Transmission speeds up to 921.6 Kbps
    • Independent/shared IRQ settings between each of the 4 serial ports
    • Wide IRQ selection: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15
    • Supports standard DOS COM1, COM2, COM3, and COM4
    • Supports DOS/Windows 3.1 (PC-ComLIB), Windows 95/98,
    Windows NT (ICOM Utility)
    • Provides 1000 VDC isolation (PCL-846A/846B only)
    • Provides 3000 VDC surge protection (PCL-846B/847B)
    • Space reserved for termination resistors
    • Supports 2 wire or 4 wire operation
    • Supports Tx, Rx, RTS, and CTS signals
    • Automatic RS-485 data flow control or RTS control

    Introduction PCL-847B:

    PCL-846/847 series cards provide four independent RS-422/485
    serial ports on a card. Each port has a 16C550 UART with an on-chip
    16-byte FIFO buffer for reliable, high-speed serial I/O. The UART
    buffers data into 16-byte packets before putting it on the bus. This
    drastically reduces the CPU load and avoids data loss when the
    system is busy and cannot process the interrupt quickly. The UART
    is especially useful for high speed serial I/O under Windows.
    PCL-846 cards differ from PCL-847 cards in that they utilize
    on-board optical isolators to protect your PC and equipment against
    damage from ground loops, increasing system reliability in harsh
    environments. To further increase reliability, PCL-846B/847B cards
    include surge protection technology, protecting your system from
    abrupt high voltage surges (up to 3000 V) such as those caused by
    lightning during thunderstorms.
    An RS-485 Network with Automatic Data Flow Control
    Using RS-232 Software
    The RS-485 mode automatically senses the direction of incoming
    data and switches its transmission direction accordingly. This feature
    makes your network look and act just like an RS-232 network.
    Application software written for half duplex RS-232 can be used
    without modification. Moreover, you can simply and quickly build an
    RS-485 network with just two wires.

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  • PCL-848A – IEEE-488 CONTROLLER

    277,00  Excl. VAT
    • General Information PCL-848A

    • Introduction to the Product PCL-848A

    The PCL-848A/B IPSE-488 interface card is a valuable addition to your PC that allows you to communicate with over 2000 products, made by over 200 manufacturers, in over 14 countries. The IEEE- 488-1978 standard that this IEEE-488 card implements is the most widely used international standard for information transfer between computer and electronic instruments. There are numerous publications and articles that may be used in conjunction with this manual to assist you to understand the interface standard. The IEEE reference document may be ordered by writing to the IEEE Service Center, 445 Hoes Lane, Piscataway, NJ 08854, USA.

     

    The IEEE-488 interface card provides the hardware (electrical and mechanical) and software required for you to interface your PC to the IEEE-488 bus. The software is packaged in read-only-memory (firmware) to provide versatile and easy-to-use IEEE-488 function extensions for your current programming language or operating system. Firmware cannot be accidentally erased or overwritten and it is always available for use by application programs. This manual provided a programming reference (Section 3.) and programming techniques (Section 4. and 5.) to assist you in writing your own application programs.

    The key features of this interface card include (PCL-848A) :

    Operating in one of the two modes (switch selectable).

    Mode A : Compatible with PCL-748 and use the on-board firmware driver.

    Mode N : Software compatible with National Instrument PC-II and IBM-PC GP-IB adaptor and use the driver and software developed for them.

    • Implementation of the entire IEEE-488 PCL-848A
    • Powerful and  easy-to-use  software  command set. Fewer arguments and simple initialization.
    • Software driver  is in on-board firmware. Requires no additional disk operation when using BASIC or Turbo Pascal.
    • On-board RAM for working space. No system memory space is needed for the IEEE-488 interface operation.
    • Built-in 16 bit digital output port provides a convenient and economical solution for signal switching and digital control applications. The D/O port is compatible with the daughter boards: PCLD-785 Relay Output Board, PCLD-786 SSR & Relay Driver Board and PCL—789 Amplifier & Multiplexer Board.
    •  BASICA, BASIC compiler and Quick—BASIC are supported as
      standard languages. C and Pascal language support packages
      can he ordered separately as PCL-748—C and PCL—748-P.
    •  The software can change the PC printer port to an IEEE-438
      device. The PrtSc (print screen} key, all print statements,
      word processing and spreadsheet programs that use printer
      driver in BIOS can use IEEE—488 printers.
    •  High speed direct memory access (DMA) with the ability to
      handle 64K byte arrays.
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  • PCL-849A – 4 Port RS-232 Interface Card

    174,00  Excl. VAT

    Features PCL-849A:

    • Four independent RS-232 serial ports
    • Transmission speeds up to 921.6 Kbps (PCL-849)
    • Independent I/O addresses, independent/shared IRQ settings
    for each of 4 serial ports
    • Wide IRQ selection: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15
    • Supports standard DOS COM1, COM2, COM3, COM4
    (PCL-849A/849B/849+)
    • Supports surge protection: 3000 VDC (PCL-849B/849+)
    • LED indicators on each port indicate data flow
    • On-board interrupt status register for greater throughput
    • Complete RS-232 modem-control signals
    • Supports Windows 95/98/NT/ME/2000, Windows XP, Linux
    (ICOM utility), DOS/Windows 3.1

     

    Introduction :
    The PCL-849 series cards provide four individually configurable
    RS-232 serial communication ports. The PCL-849A/849B/849L has a
    16C554 UART which makes serial I/O more reliable. The higher
    performance PCL-849+ has a 16C654 UART. By buffering data into
    64-byte packets before putting it on the bus, UARTs drastically reduce
    the CPU load. This makes the PCL-849+ especially suitable for high
    speed serial I/O applications under multitasking environments.
    The PCL-849 series cards support two operating modes, standard
    mode and enhanced mode. In enhanced mode, the address for all four
    ports can be set automatically. The PCL-849 series cards also support
    either shared IRQ or independent IRQ functions. When an on-board
    interrupt occurs, the interrupt status register (vector address) indicates
    which port generated it. The shared interrupt can be set to most common
    (extended) AT interrupts. This simplifies programming, speeds up
    interrupt processing and frees up interrupts for other devices.

     

    Specifications PCL-849A :

    • Ports: 4 serial ports
    • I/O Address Range: from 200H to 3F8H
    • IRQ: 3, 4, 5, 6, 7, 9, 10, 11, 12, 15
    • Data Bits: 5, 6, 7, 8
    • Stop Bits: 1, 1.5, 2
    • Parity: none, even, odd
    • UARTs: 1 x 16C554 (PCL-849A/849B/849L)
    1 x 16C654 (PCL-849+)
    • Speed: 50 ~ 921.6 Kbps (PCL-849A)
    50 ~ 460.8 Kbps (PCL-849B/849+)
    50 ~ 115.2 Kbps (PCL-849L)
    • Cables: 30-cm male DB-37 to four male DB-25 (DTE)
    • Data Signals: TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI, GND
    • Surge Protection: 3000 VDC (PCL-849B/849+)
    2000 VDC (PCL-849L)
    • Power Requirements: +5 V @ 250 mA typical, 500 mA max.
    ±12 V @ 70 mA typical, 120 mA max.
    • Dimensions: 185 mm x 100 mm (7.3″ x 3.9″)
    • Operating Temperature: 0 ~ 60° C (32 ~ 140° F)
    • Storage Temperature: -25 ~ 80° C (-13 ~ 176° F)

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  • PCL-860 – 4 1/2 DIGIT VOLTMETER (Rev A2)

    350,00  Excl. VAT

    Introduction

    The PCL-860 is a 4 1/2 digit DC/AC voltmeter card that plugs into any I/O slot of IBM PC/XT/AT or compatible computers.It provides all the features and accuracy you would expect from a bench-top voltmeter.
    It uses the computer screen as its display and it takes one forth of the screen when activated. This size allows 4 separate PC’s instruments (including the PCL-860) display on the screen at same time. In addition, instead of using push-buttons on the instrument front panel,it uses the computer keyboard.

    The PCL-860 provides a standard programmable DC current source.It can be used as a 4-wire resistance precision ohmmeter. The PCL-860 has also a build-in 16 bit digital output

    1.2. Specifications PCL-860

    Input impedance 10Mohm

    DC voltage
    Range                      Resblution                   Accuracy

    200mv                       10uv                              ±0.03%+1
    2V                               100uV                          ±0.03%+1
    20V                             lmV                              ±0.03%+1
    200V                          10mV                            ±0.03%+1

    Over voltage : 250V DC or peak AC

    AC voltage :                            True RMS

    Range                      Resblution                   Accuracy

    200mv                       10uv                              ±0.03%+1
    2V                               100uV                          ±0.03%+1
    20V                             lmV                              ±0.03%+1
    200V                          10mV                            ±0.03%+1

    250V DC or peak AC

    AC bandwidth :10KHz

    Current source : 0.1mA, lmA, 10mA , user defined (< =1OmA)

    * Resistance :  (4 wire measurement with current source)
    Range                  Resolution                          Accuracy                           Current Source

    20ohm                1 mili-ohm                            ±0.03% +1                       10mA

    200ohm            10 mili-ohm                          ±0.03%+ 1                       10mA
    2Kohm                0.1ohm                                  ±0.03% +1                        lmA
    20Kohm              lohm                                      ±0.03%+1                         0.1mA
    * Conversion rate : 2.5, 5, 10 reading/sec
    * Digital output : 16 channel TTL compatible 8.0mA sink and 0.4 mA driver
    General :
    * Power consumption : +5V, 390mA; +12V, 210mA typical

    * Digital output connecter: 20 pin flat cable connector with +5V, +12V, ground
    * I/O base address : &H200-&H3F0 (factory setting is &H230)
    * Operating temperature : 0 – 50°C
    * Storage temperature : -20 – 65°C
    * Weight : 290gm

    Add to cart

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