Showing 11–12 of 12 results

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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

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