THOMAS-CONRAD CORPORATION
TC6142
NIC Type | ARCnet |
Transfer Rate | 2.5Mbps |
Data Bus | 8-bit ISA |
Topology | Star Linear Bus |
Wiring Type | RG62/U 93ohm coaxial |
Boot ROM | Available |
NODE ADDRESS | ||||||||
Node | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 | SW2/7 | SW2/8 |
0 | - | - | - | - | - | - | - | - |
1 | Off | On | On | On | On | On | On | On |
2 | On | Off | On | On | On | On | On | On |
3 | Off | Off | On | On | On | On | On | On |
4 | On | On | Off | On | On | On | On | On |
251 | Off | Off | On | Off | Off | Off | Off | Off |
252 | On | On | Off | Off | Off | Off | Off | Off |
253 | Off | On | Off | Off | Off | Off | Off | Off |
254 | On | Off | Off | Off | Off | Off | Off | Off |
255 | Off | Off | Off | Off | Off | Off | Off | Off |
Note:Node address 0 is used for messaging between nodes and must not be used. A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. Switch 1 is the Least Significant Bit and switch 8 is the Most Significant Bit. The switches have the following decimal values: switch 1=1, 2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. Turn off the switches and add the values of the off switches to obtain the correct node address. (On=0, Off=1) |
INTERRUPT REQUEST | ||||||
IRQ | JP1 | JP2 | JP3 | JP4 | JP5 | |
» | 2 | Closed | Open | Open | Open | Open |
| 3 | Open | Closed | Open | Open | Open |
| 4 | Open | Open | Closed | Open | Open |
| 5 | Open | Open | Open | Closed | Open |
| 7 | Open | Open | Open | Open | Closed |
CABLE LENGTH AND RESPONSE/RECONFIGURATION TIMEOUTS | |||||
Cable Length | Response Time | Reconfiguration | JP6 | JP7 | |
» | < 20,000 feet | 74.7µs | 840ms | Open | Open |
| > 20,000 feet | 283.4µs | 1680ms | Closed | Open |
| > 20,000 feet | 561.8µs | 1680ms | Open | Closed |
| > 20,000 feet | 1118.6µs | 1680ms | Closed | Closed |
Note: All NICs on the network must have this option set the same. |
BASE MEMORY ADDRESS | |||||||
Address | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | |
» | D000h | Off | Off | On | Off | On | On |
| C000h | Off | Off | On | On | On | On |
| C400h | Off | Off | On | On | On | Off |
| C800h | Off | Off | On | On | Off | On |
| CC00h | Off | Off | On | On | Off | Off |
| D400h | Off | Off | On | Off | On | Off |
| D800h | Off | Off | On | Off | Off | On |
| DC00h | Off | Off | On | Off | Off | Off |
COMPATIBILITY MODE | ||
Mode | SW1/8 | |
» | Enhanced mode | On |
| Compatible mode | Off |
Note: Enhanced mode optimizes performance and minimizes conflicts of your hardware, by using a Thomas-Conrad ARCNET driver. It is also not necessary to set the I/O address. In most existing ARCNET drivers. |
I/O BASE ADDRESS | |||||||
Address | SW3/3 | SW3/4 | SW3/5 | SW3/6 | SW3/7 | SW3/8 | |
» | 2E0h | Off | On | Off | Off | Off | On |
| 2F0h | Off | On | Off | Off | Off | Off |
| 300h | Off | Off | On | On | On | On |
| 310h | Off | Off | On | On | On | Off |
| 320h | Off | Off | On | On | Off | On |
| 330h | Off | Off | On | On | Off | Off |
| 340h | Off | Off | On | Off | On | On |
| 350h | Off | Off | On | Off | On | Off |
| 360h | Off | Off | On | Off | Off | On |
| 370h | Off | Off | On | Off | Off | Off |
| 380h | Off | Off | Off | On | On | On |
| 390h | Off | Off | Off | On | On | Off |
| 3A0h | Off | Off | Off | On | Off | On |
| 3B0h | Off | Off | Off | On | Off | Off |
| 3C0h | Off | Off | Off | Off | On | On |
| 3D0h | Off | Off | Off | Off | On | Off |
| 3E0h | Off | Off | Off | Off | Off | On |
| 3F0h | Off | Off | Off | Off | Off | Off |
FACTORY CONFIGURED SETTINGS - DO NOT ALTER | |
Switch | Setting |
SW1/7 | Unused |
SW3/1 | Unused |
SW3/2 | Unused |