3COM CORPORATION
ETHERLINK PLUS (3C505B; ASSY.#2012)
NIC Type | Ethernet |
Transfer Rate | 10Mbps |
Data Bus | 16-bit ISA |
Topology | Linear Bus |
Wiring Type | RG-58A/U 50ohm coaxial AUI transceiver via DB-15 port |
Boot ROM | Available |
CABLE TYPE SELECTION | ||
Type | JP45 - JP51 | |
» | RG-58A/U 50ohm coaxial | Pins 2 & 3 Closed |
AUI transceiver via DB-15 port | Pins 1 & 2 Closed |
INTERRUPT REQUEST SELECTION | |||||||||||
IRQ | JP29 | JP30 | JP31 | JP32 | JP33 | JP34 | JP35 | JP36 | JP37 | JP38 | JP39 |
2 | Open | Open | Open | Open | Open | Open | Open | Open | Open | Open | Closed |
3 | Open | Open | Open | Open | Open | Closed | Open | Open | Open | Open | Open |
4 | Open | Open | Open | Open | Open | Open | Closed | Open | Open | Open | Open |
5 | Open | Open | Open | Open | Open | Open | Open | Closed | Open | Open | Open |
6 | Open | Open | Open | Open | Open | Open | Open | Open | Closed | Open | Open |
7 | Open | Open | Open | Open | Open | Open | Open | Open | Open | Closed | Open |
10 | Open | Open | Open | Open | Closed | Open | Open | Open | Open | Open | Open |
11 | Open | Open | Open | Closed | Open | Open | Open | Open | Open | Open | Open |
12 | Open | Open | Closed | Open | Open | Open | Open | Open | Open | Open | Open |
14 | Closed | Open | Open | Open | Open | Open | Open | Open | Open | Open | Open |
15 | Open | Closed | Open | Open | Open | Open | Open | Open | Open | Open | Open |
DMA CHANNEL SELECTION | ||||||||
Channel | JP21 | JP22 | JP23 | JP24 | JP25 | JP26 | JP27 | JP28 |
Disabled | Open | Open | Open | Open | Open | Open | Closed | Closed |
5 | Open | Open | Open | Open | Closed | Closed | Open | Open |
6 | Open | Open | Closed | Closed | Open | Open | Open | Open |
7 | Closed | Closed | Open | Open | Open | Open | Open | Open |
I/O BASE ADDRESS SELECTION | ||||||
Address | JP4 | JP5 | JP6 | JP7 | JP8 | JP9 |
200h | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
210h | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 |
220h | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
230h | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
240h | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
250h | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
260h | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
270h | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
280h | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
290h | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
2A0h | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
2B0h | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
2C0h | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
2D0h | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
2E0h | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
2F0h | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
300h | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
310h | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
320h | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
330h | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
340h | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
350h | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
360h | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
370h | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
380h | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
390h | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
3A0h | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
3B0h | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
3C0h | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
3D0h | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
3E0h | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
3F0h | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
Note:Pins designated should be in the closed position. |
BOOT ROM ADDRESS SELECTION | |||||||
Address | JP13 | JP14 | JP15 | JP16 | JP17 | JP18 | JP19 |
CC000h | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 |
EC000h | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 |
Note:Pins designated should be in the closed position. |
BOOT ROM CONFIGURATION | ||
Setting | JP12 | |
» | Disabled | Pins 1 & 2 Closed |
Enabled | Pins 2 & 3 Closed |