TIARA COMPUTER SYSTEMS, INC.
10BASE-T LanCard AT
NIC Type | Ethernet |
Transfer Rate | 10Mbps |
Data Bus | 16-bit ISA |
Topology | Linear Bus Star |
Wiring Type | Shielded twisted pair Unshielded twisted pair AUI transceiver via DB-15 port |
Boot ROM | Available |

BOOT ROM ADDRESS | ||||||||
Address | JP24 | JP25 | JP26 | JP27 | JP28 | JP29 | JP30 | JP31 |
Disabled | Open | Open | Open | Open | Open | Open | Open | Closed |
C4000h | Open | Open | Open | Open | Open | Open | Closed | Open |
C8000h | Open | Open | Open | Open | Open | Closed | Open | Open |
CC000h | Open | Open | Open | Open | Closed | Open | Open | Open |
D0000h | Open | Open | Open | Closed | Open | Open | Open | Open |
D4000h | Open | Open | Closed | Open | Open | Open | Open | Open |
D8000h | Open | Closed | Open | Open | Open | Open | Open | Open |
DC000h | Closed | Open | Open | Open | Open | Open | Open | Open |
Note:JP32 and JP33 should remain with pins 2 & 3 closed. | ||||||||
INTERRUPT REQUEST | ||||||||||
IRQ | JP5 | JP6 | JP7 | JP8 | JP9 | JP10 | JP11 | JP12 | JP13 | |
| » | 3 | Open | Open | Open | Open | Open | Open | Open | Open | Closed |
4 | Open | Open | Open | Open | Open | Open | Open | Closed | Open | |
5 | Open | Open | Open | Open | Open | Open | Closed | Open | Open | |
7 | Open | Open | Open | Open | Open | Closed | Open | Open | Open | |
9 | Open | Open | Open | Open | Closed | Open | Open | Open | Open | |
10 | Open | Open | Open | Closed | Open | Open | Open | Open | Open | |
11 | Open | Open | Closed | Open | Open | Open | Open | Open | Open | |
12 | Open | Closed | Open | Open | Open | Open | Open | Open | Open | |
15 | Closed | Open | Open | Open | Open | Open | Open | Open | Open | |
CABLE TYPE | |||
Type | JP1 | JP2 | JP3 |
Shielded/Unshielded twisted pair (10Base-T Standard) | Open | Closed | Open |
AUI transceiver via DB-15 port | Open | Open | Closed |
Shielded/Unshielded twisted pair (Pre-10Base-T Standard) | Closed | Open | Open |
I/O BASE ADDRESS | |||||||||
Address | JP14 | JP15 | JP16 | JP17 | JP18 | JP19 | JP20 | JP21 | |
| » | 300h | Closed | Open | Open | Open | Open | Open | Open | Open |
260h | Open | Open | Open | Open | Closed | Open | Open | Open | |
280h | Open | Open | Open | Open | Open | Closed | Open | Open | |
2A0h | Open | Open | Open | Open | Open | Open | Closed | Open | |
2E0h | Open | Open | Open | Open | Open | Open | Open | Closed | |
320h | Open | Closed | Open | Open | Open | Open | Open | Open | |
380h | Open | Open | Closed | Open | Open | Open | Open | Open | |
3E0h | Open | Open | Open | Closed | Open | Open | Open | Open | |
COMPATIBILITY MODE CONFIGURATION | ||
Compatibility | JP22 | JP23 |
Default | Pins 1 & 2 closed | Pins 1 & 2 closed |
Special | Pins 2 & 3 closed | Pins 2 & 3 closed |
Note:Use the special mode on the PS/2 Model 30-286 if the computer stops operating after running IPX. | ||
DB-15 PORT GROUND CONFIGURATION | |
DB-15 Standard | JP4 |
AUI | Pins 1 & 2 closed |
DIX | Pins 2 & 3 closed |

DIAGNOSTIC LED(S) | ||
LED | Status | Condition |
L1 | On | Data is being transmitted |
L2 | On | Data is being received |
L3 | On | Collision is detected on network |
L4 | On | twisted pair link is good |
L5 | On | Card is powered and fuse is good |