Measurement Computing WBK Options - Manual (Page 143)

WBK21, page 2 948198 WBK21, ISA/EPP Plug-in Board
JP2 The JP2 configuration enables (or disables) the parallel port. Enabled is the default.
JP3 The JP3 configuration enables (or disables) the serial port. Enabled is the default.
JP4 JP4’s configuration determines the serial port (COM port) used. COM1 is the default. The COM port that
designates WBK21 depends on two factors: (1) WBK21 configuration, and (2) other installed devices
making use of COM ports.
JP4 Configurations for Serial Port Selection
JP5 In reference to the following figure, the top four jumper positions on JP5 select the serial port IRQ level.
IRQ4 is the default setting. The bottom two jumper rows select the parallel port IRQ level. IRQ7 is the
default parallel port setting. Note that COM and LPT ports cannot both be configured for IRQ5 at the same
time.
JP5 Configurations for Serial Port IRQ Level JP5 Configurations for
Parallel Port IRQ Level
After WBK21 is properly configured, power-off your computer and install WBK21 into an available 16-bit
ISA bus. Consult your PC user’s manual as needed.
After WBK21 has been physically installed, power up your PC.
WBK21 - Specifications
Name/Function: WBK21 ISA/EPP Interface Plug-in Board
Bus Interface: 16-bit ISA-bus interface
Transfer Rate: > 2.5 Mbytes/s
LPT Address: 378 or 278
LPT Interrupts: 5 or 7
Connector: DB25F
Serial-Port: high-speed 16C550 via DB9
Serial-Port Address: 3F8, 2F8, 3E8, or 2E8
Serial-Port Interrupt: 2, 3, 4, or 5
Connector: DB9M