UNIDENTIFIED
PM-550C
| 
 
  | 
Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two IDE(AT) Interface drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB drives
| 
 CONNECTIONS  | |
| 
 Function  | 
 Location  | 
| 
 2-pin connector - Drive Active LED  | 
 J1  | 
| 
 40-pin IDE(AT) Interface connector  | 
 CN1  | 
| 
 34-pin control cable connector - floppy drive  | 
 CN2  | 
| 
 9-pin serial port 1 (COM1) - external  | 
 CN3  | 
| 
 9-pin serial port 2 (COM2) - internal  | 
 CN4  | 
| 
 25-pin parallel port - external  | 
 CN5  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Location  | 
 Setting  | |
| » | 
 Floppy drive enabled  | 
 JP2  | 
 pins 2 & 3 closed  | 
| 
 Floppy drive disabled  | 
 JP2  | 
 pins 1 & 2 closed  | |
| » | 
 Hard drive enabled  | 
 JP3  | 
 pins 2 & 3 closed  | 
| 
 Hard drive disabled  | 
 JP3  | 
 pins 1 & 2 closed  | |
| 
 SERIAL PORT 1 CONFIGURATION  | |||
| 
 Select  | 
 JP4/jumper 1  | 
 JP4/jumper 3  | |
| 
 Disabled  | 
 open  | 
 open  | |
| » | 
 COM1 (3F8-3FFh)  | 
 closed  | 
 open  | 
| 
 COM3 (3E8-3EFh)  | 
 open  | 
 closed  | |
| 
 COM4 (2E8-2EFh)  | 
 closed  | 
 closed  | |
| 
 SERIAL PORT 2 CONFIGURATION  | |||
| 
 Select  | 
 JP4/jumper 2  | 
 JP4/jumper 4  | |
| 
 Disabled  | 
 open  | 
 open  | |
| » | 
 COM2 (2F8-2FFh)  | 
 closed  | 
 open  | 
| 
 COM4 (2E8-2EFh)  | 
 open  | 
 closed  | |
| 
 COM3 (3E8-3EFh)  | 
 closed  | 
 closed  | |
| 
 PARALLEL PORT CONFIGURATION  | |||
| 
 Select  | 
 JP4/jumper 5  | 
 JP4/jumper 6  | |
| 
 Disabled  | 
 open  | 
 open  | |
| » | 
 LPT1 (278-27Fh)  | 
 closed  | 
 open  | 
| 
 LPT2 (378-37Fh)  | 
 open  | 
 closed  | |
| 
 SERIAL PORT 1 INTERRUPT REQUEST  | ||||
| 
 Select  | 
 JP5/jumper 1  | 
 JP5/jumper 2  | 
 JP5/jumper 3  | |
| » | 
 IRQ4  | 
 closed  | 
 open  | 
 open  | 
| 
 IRQ5  | 
 open  | 
 closed  | 
 open  | |
| 
 IRQ9  | 
 open  | 
 open  | 
 closed  | |
| 
 SERIAL PORT 2 INTERRUPT REQUEST  | ||||
| 
 Select  | 
 JP6/jumper 1  | 
 JP6/jumper 2  | 
 JP6/jumper 3  | |
| » | 
 IRQ3  | 
 closed  | 
 open  | 
 open  | 
| 
 IRQ9  | 
 open  | 
 closed  | 
 open  | |
| 
 IRQ5  | 
 open  | 
 open  | 
 closed  | |
| 
 PARALLEL PORT INTERRUPT REQUEST  | |||
| 
 Select  | 
 JP7  | 
 JP7A  | |
| 
 Disabled  | 
 open  | 
 open  | |
| 
 IRQ5  | 
 closed  | 
 open  | |
| » | 
 IRQ7  | 
 open  | 
 closed  |