LANCARD/A*PC TP Network Card Settings and Configuration
TIARA COMPUTER SYSTEMS, INC.
LANCARD/A*PC TP
NIC Type | ARCnet |
Network Transfer Rate | 2.5Mbps |
Data Bus | 8-bit ISA |
Topology | Ring/Daisy Chain/Star |
Wiring Type | Unshielded twisted pair |
Boot ROM | Available |
CONNECTIONS | |||
Function | Label | Function | Label |
Unshielded twisted pair port | CN1 | Unshielded twisted pair port | CN2 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | Enhanced mode diagnostic disabled | JP7 | Pins 1 & 2 closed |
| Enhanced mode diagnostic enabled | JP7 | Pins 2 & 3 closed |
» | Terminator Resistor disabled | JP8 | Pins 2 & 3 closed |
| Terminator Resistor enabled | JP8 | Pins 1 & 2 closed |
BASE I/O ADDRESS SELECTION | ||||
Address | SW1/1 | SW1/2 | SW1/3 | |
| 260h-26Fh | Off | Off | Off |
| 290h-29Fh | Off | Off | On |
| 2B0h-2BFh | Off | On | On |
» | 2E0h-2EFh | Off | On | Off |
| 300h-30Fh | On | Off | Off |
| 350h-35Fh | On | Off | On |
| 380h-38Fh | On | On | Off |
| 3E0h-3EFh | On | On | On |
INTERRUPT SELECTION | |||||||
IRQ | JP1 | JP2 | JP3 | JP4 | JP5 | JP6 | |
» | 2 | Closed | Open | Open | Open | Open | Open |
| 3 | Open | Closed | Open | Open | Open | Open |
| 4 | Open | Open | Closed | Open | Open | Open |
| 5 | Open | Open | Open | Closed | Open | Open |
| 6 | Open | Open | Open | Open | Closed | Open |
| 7 | Open | Open | Open | Open | Open | Closed |
NODE ADDRESS | ||||||||
Node | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 | SW2/7 | SW2/8 |
1 | Off | Off | Off | Off | Off | Off | Off | On |
2 | Off | Off | Off | Off | Off | Off | On | Off |
3 | Off | Off | Off | Off | Off | Off | On | On |
4 | Off | Off | Off | Off | Off | On | Off | Off |
5 | Off | Off | Off | Off | Off | On | Off | On |
251 | On | On | On | On | On | Off | On | On |
252 | On | On | On | On | On | On | Off | Off |
253 | On | On | On | On | On | On | Off | On |
254 | On | On | On | On | On | On | On | Off |
255 | On | On | On | On | On | On | On | On |
Note: A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. Switch 8 is the Least Significant Bit and switch 1 is the Most Significant Bit. The switches have the following decimal values: switch 8=1, 7=2, 6=4, 5=8, 4=16, 3=32, 2=64, 1=128. Turn on the switches and add the values of the on switches to obtain the correct node address. (On=1, Off=0) | ||||||||
ROM ADDRESS SELECTION | ||||
Address | SW1/4 | SW1/5 | SW1/6 | |
| C0000h-C3FFFh | Off | Off | Off |
| C4000h-C7FFFh | Off | Off | On |
| CC000h-CFFFFh | Off | On | On |
» | D0000h-D3FFFh | On | Off | Off |
| D4000h-D7FFFh | On | Off | On |
| D8000h-DBFFFh | On | On | Off |
| DC000h-DFFFFh | On | On | On |
| E0000h-E3FFFh | Off | On | Off |
CABLE LENGTH AND RESPONSE/RECONFIGURATION TIMEOUTS | |||||
Maximum Length | Response Time | Reconfiguration Time | SW1/7 | SW1/8 | |
» | 4.8 miles | 74.4µs | 840ms | On | On |
| 21.0 miles | 283.4µs | 1680ms | On | Off |
| 42.5 miles | 561.8µs | 1680ms | Off | On |
| 85.6 miles | 1118.6µs | 1680ms | Off | Off |
Note: Maximum length is the distance between the two farthest cards on the network. All cards on a segment must have this option set the same. | |||||
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
LED1 | Red | On | Data is being received |
LED1 | Red | Blinking | Reconfiguring network |
LED1 | Red | Off | Data is not being received |
LED2 | Green | On | Data is being transmitted |
LED2 | Green | Blinking | Reconfiguring network |
LED2 | Green | Off | Data is not being transmitted |
Note: If blinking persists it indicates a network problem. | |||
TECHNICAL NOTE |
Note: The last node of the chain needs to be terminated. |
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