COMPEX, INC.
ANET-16-1A(REVISION C2)
NIC Type | ARCnet |
Transfer Rate | 2.5-Mbps |
Data Bus | 16-bit ISA |
Topology | Linear bus, Star |
Wiring Type | RG-58A/U 50ohm coaxial Unshielded twisted pair |
Boot ROM | Available |

BASE MEMORY ADDRESS SELECT | |||||
Address | J2/A | J2/B | J2/C | J2/D | J2/E |
C0000h | Closed | Closed | Closed | Closed | Closed |
C4000h | Closed | Closed | Open | Closed | Closed |
CC000h | Closed | Open | Closed | Closed | Closed |
D0000h | Closed | Open | Open | Closed | Closed |
D4000h | Open | Closed | Closed | Closed | Closed |
D8000h | Open | Closed | Open | Closed | Closed |
DC000h | Open | Open | Closed | Closed | Closed |
E0000h | Open | Open | Open | Closed | Closed |
BOOT ROM | ||
Setting | J1/C | |
» | Disabled | Open |
| Enabled | Closed |
CABLE TYPE | |||
Type | J5 | J6 | |
» | RG-58A/U 50ohm coaxial | Pins 1 & 2 closed | Pins 1 & 2 closed |
| Unshielded twisted pair | Pins 2 & 3 closed | Pins 2 & 3 closed |
INTERRUPT SELECT | ||||||||||
IRQ | J4/A | J4/B | J4/C | J4/D | J4/E | J4/F | J4/G | J4/H | J4/I | |
» | IRQ2 | Closed | Open | Open | Open | Open | Open | Open | Open | Open |
| IRQ3 | Open | Closed | Open | Open | Open | Open | Open | Open | Open |
| IRQ4 | Open | Open | Closed | Open | Open | Open | Open | Open | Open |
| IRQ5 | Open | Open | Open | Closed | Open | Open | Open | Open | Open |
| IRQ7 | Open | Open | Open | Open | Closed | Open | Open | Open | Open |
| IRQ10 | Open | Open | Open | Open | Open | Open | Open | Open | Closed |
| IRQ11 | Open | Open | Open | Open | Open | Open | Open | Closed | Open |
| IRQ12 | Open | Open | Open | Open | Open | Open | Closed | Open | Open |
| IRQ15 | Open | Open | Open | Open | Open | Closed | Open | Open | Open |
I/O ADDRESS SELECT | |||
Address | J3/A | J3/B | J3/C |
260h | Closed | Closed | Closed |
290h | Closed | Closed | Open |
2E0h | Closed | Open | Closed |
2F0h | Closed | Open | Open |
300h | Open | Closed | Closed |
350h | Open | Closed | Open |
380h | Open | Open | Closed |
3E0h | Open | Open | Open |
NODE ADDRESS | ||||||||
Node | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
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) | ||||||||
TIMEOUT CONFIGURATION | |||
Response Time | J1/A | J1/B | |
» | 74.7µs | Open | Open |
| 283.4µs | Open | Closed |
| 561.8µs | Closed | Open |
| 1118.6µs | Closed | Closed |
TOPOLOGY | ||
Type | J7 | |
» | Star | Closed |
| Linear bus | Open |
CONNECTIONS | |
Purpose | Location |
External LED connector | LJ1 |
DIAGNOSTIC LEDS | |||
LED | Color | Status | Condition |
LED1 | Red | Blinking | Network connection is broken |
LED1 | Red | On | Network connection is good |
LED2 | Green | Off | Data is not being transmitted/received |
LED2 | Green | On | Data is being transmitted/received |