Serial Port Installation

Solution:

• Serial Port Installation

  Serial Port Installation
  
  The POS-562/562L has a total of four on-board RS-232 serial ports, COM1-4. They
  are differentiated by COM1 and COM2 (RS-232/422/485) as primary serial ports
  and COM3 and COM4 as second-ary ports. All four serial ports have +5 V and +12
  V power capabilities on both pin #1 and pin #9, depending on the jumper
  setting. Pin assignments for both internal and external COM ports can be found
  in the appendix.
  
  Primary serial ports (COM1: CN19/CN22, COM2:CN17/CN20)
  Each primary serial port has two connections, one external DB-9 and one
  internal 10-pin header giving the user the flexibility to adapt the board to
  many different systems. IRQ for COM1 and COM2 is fixed with COM1 on IRQ4 and
  COM2 on IRQ3. COM1 and COM2 can be enabled or disabled via BIOS .
  
  Secondary serial ports (COM3: CN18, COM4: CN15)
  The secondary serial ports each have one 10-pin, internally positioned header
  connection. The IRQ for COM3 is fixed at
  IRQ10 and COM4 is fixed at IRQ5. COM3 and COM4 can be enabled/disabled via
  BIOS.
  
  I. Jumpers Setting
  
  
  1. COM2 RS-232/422/485 Selection(JP15, JP17 and JP18)
  Follow the jumper chart below to set the desired mode for COM2.
  
  
  
  
  
  2. COM1 - COM4 RI pin +5/+12 V power setting (JP6,JP8, JP9, JP12)
  COM1 - COM4 can supply +/- 5V or +/- 1V power to the serial devices via RI pin
  of the COM port connector. The outputs of
  COM1 - COM4 RI pins are selected by setting JP6, JP8, JP9, JP12.
  II. BIOS Setup (page 49)
  
  1. CMOS Setup
  If you wish to change the IRQ/IO address setting or disable/enable COM
  ports,you can modify it from "Integrated Peripheral"in CMOS setup.
  
  2. COM1-COM4 IRQ and I/O Ports default setting
  The IRQ and the address range for COM1, 2, 3, 4 are fixed. However, if you wish
  to disable the port or change these parameters later you can do this in the
  system BIOS setup. The table below shows the settings for the POS-562/562L
  serial ports.
  
  III.