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# NETWORK INTERFACE TECHNOLOGY CORPORATION
16-BIT ARCNET ADAPTER
NIC Type ARCnet
Transfer Rate 2.5Mbps
Data Bus 8-bit ISA
Topology Star
Linear Bus
Wiring Type Unshielded twisted pair
RG58A/U 50ohm coaxial
Boot ROM Available
IMG IMG 1
+------------------------------------------------------------+
| CABLE TYPE |
|------------------------------------------------------------|
| Type | J5/A | J5/B | J5/C |
|------------------------+-----------+-----------+-----------|
| » | RG58A/U 50ohm | Pins 1 & | Pins 1 & | Pins 1 & |
| | coaxial | 2 closed | 2 closed | 2 closed |
|---+--------------------+-----------+-----------+-----------|
| | Unshielded twisted | Pins 2 & | Pins 2 & | Pins 2 & |
| | pair | 3 closed | 3 closed | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location |
|----------------------------+-------------------------------|
| J1 | External LED connector 1 |
|----------------------------+-------------------------------|
| J2 | External LED connector 2 |
+------------------------------------------------------------+
IMG IMG 2
+------------------------------------------------------------+
| DIAGNOSTIC LED |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|--------+--------+-----------+------------------------------|
| LED1 | Red | On or | Data transmission is |
| | | Blinking | occurring |
|--------+--------+-----------+------------------------------|
| LED2 | Green | On | Proper connection |
| | | | established |
|--------+--------+-----------+------------------------------|
| LED2 | Green | Blinking | Reconfiguration occurring |
|--------+--------+-----------+------------------------------|
| LED1 & | Red & | Off | Call Technical Support |
| LED2 | Green | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECT |
|------------------------------------------------------------|
| IRQ | J7/A | J7/B | J7/C | J7/D | J7/E | J7/F | J7/G |
|------+-------+-------+-------+-------+-------+------+------|
| IRQ2 |Closed | Open | Open | Open | Open | Open | Open |
|------+-------+-------+-------+-------+-------+------+------|
| IRQ3 | Open |Closed | Open | Open | Open | Open | Open |
|------+-------+-------+-------+-------+-------+------+------|
| IRQ4 | Open | Open |Closed | Open | Open | Open | Open |
|------+-------+-------+-------+-------+-------+------+------|
| IRQ5 | Open | Open | Open |Closed | Open | Open | Open |
|------+-------+-------+-------+-------+-------+------+------|
|IRQ10 | Open | Open | Open | Open |Closed | Open | Open |
|------+-------+-------+-------+-------+-------+------+------|
|IRQ11 | Open | Open | Open | Open | Open |Closed| Open |
|------+-------+-------+-------+-------+-------+------+------|
|IRQ12 | Open | Open | Open | Open | Open | Open |Closed|
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O ADDRESS SELECT |
|------------------------------------------------------------|
| Address Range | J4/F | J4/G | J4/H |
|---------------+------------------+------------+------------|
| 260h - 26Fh | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 290h - 29Fh | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 2E0h - 2EFh | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 2F0h - 2FFh | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 300h - 30Fh | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 350h - 35Fh | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 380h - 38Fh | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 3E0h - 3EFh | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE MEMORY ADDRESS SELECT |
|------------------------------------------------------------|
| Address Range | J4/A | J4/B | J4/C | J4/D | J4/E |
|---------------+--------+--------+--------+--------+--------|
| C0000h - | Pins 1 | Pins 1 | Pins 1 | Pins 1 | Pins 1 |
| C07FFh | & 2 | & 2 | & 2 | & 2 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| C0800h - | Pins 2 | Pins 1 | Pins 1 | Pins 1 | Pins 1 |
| C0FFFh | & 3 | & 2 | & 2 | & 2 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| C1000h - | Pins 1 | Pins 2 | Pins 1 | Pins 1 | Pins 1 |
| C17FFh | & 2 | & 3 | & 2 | & 2 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| C1800h - | Pins 2 | Pins 2 | Pins 1 | Pins 1 | Pins 1 |
| C1FFFh | & 3 | & 3 | & 2 | & 2 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| C4000h - | Pins 1 | Pins 1 | Pins 2 | Pins 1 | Pins 1 |
| C47FFh | & 2 | & 2 | & 3 | & 2 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| C4800h - | Pins 2 | Pins 1 | Pins 2 | Pins 1 | Pins 1 |
| C4FFFh | & 3 | & 2 | & 3 | & 2 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| C5000h - | Pins 1 | Pins 2 | Pins 2 | Pins 1 | Pins 1 |
| C57FFh | & 2 | & 3 | & 3 | & 2 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| C5800h - | Pins 2 | Pins 2 | Pins 2 | Pins 1 | Pins 1 |
| C5FFFh | & 3 | & 3 | & 3 | & 2 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| CC000h - | Pins 1 | Pins 1 | Pins 1 | Pins 2 | Pins 1 |
| CC7FFh | & 2 | & 2 | & 2 | & 3 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| CC800h - | Pins 2 | Pins 1 | Pins 1 | Pins 2 | Pins 1 |
| CCFFFh | & 3 | & 2 | & 2 | & 3 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| CD000h - | Pins 1 | Pins 2 | Pins 1 | Pins 2 | Pins 1 |
| CD7FFh | & 2 | & 3 | & 2 | & 3 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| CD800h - | Pins 2 | Pins 2 | Pins 1 | Pins 2 | Pins 1 |
| CDFFFh | & 3 | & 3 | & 2 | & 3 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| D0000h - | Pins 1 | Pins 1 | Pins 2 | Pins 2 | Pins 1 |
| D07FFh | & 2 | & 2 | & 3 | & 3 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| D0800h - | Pins 2 | Pins 1 | Pins 2 | Pins 2 | Pins 1 |
| D0FFFh | & 3 | & 2 | & 3 | & 3 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| D4800h - | Pins 2 | Pins 1 | Pins 1 | Pins 1 | Pins 2 |
| D4FFFh | & 3 | & 2 | & 2 | & 2 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| D1800h - | Pins 2 | Pins 2 | Pins 2 | Pins 2 | Pins 1 |
| D1FFFh | & 3 | & 3 | & 3 | & 3 | & 2 |
|---------------+--------+--------+--------+--------+--------|
| D4000h - | Pins 1 | Pins 1 | Pins 1 | Pins 1 | Pins 2 |
| D47FFh | & 2 | & 2 | & 2 | & 2 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| D5000h - | Pins 1 | Pins 2 | Pins 1 | Pins 1 | Pins 2 |
| D57FFh | & 2 | & 3 | & 2 | & 2 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| D5800h - | Pins 2 | Pins 2 | Pins 1 | Pins 1 | Pins 2 |
| D5FFFh | & 3 | & 3 | & 2 | & 2 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| D8000h - | Pins 1 | Pins 1 | Pins 2 | Pins 1 | Pins 2 |
| D87FFh | & 2 | & 2 | & 3 | & 2 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| D8800h - | Pins 2 | Pins 1 | Pins 2 | Pins 1 | Pins 2 |
| D8FFFh | & 3 | & 2 | & 3 | & 2 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| D9000h - | Pins 1 | Pins 2 | Pins 2 | Pins 1 | Pins 2 |
| D97FFh | & 2 | & 3 | & 3 | & 2 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| D9800h - | Pins 2 | Pins 2 | Pins 2 | Pins 1 | Pins 2 |
| D9FFFh | & 3 | & 3 | & 3 | & 2 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| DC000h - | Pins 1 | Pins 1 | Pins 1 | Pins 2 | Pins 2 |
| DC7FFh | & 2 | & 2 | & 2 | & 3 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| DC800h - | Pins 2 | Pins 1 | Pins 1 | Pins 2 | Pins 2 |
| DCFFFh | & 3 | & 2 | & 2 | & 3 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| DD000h - | Pins 1 | Pins 2 | Pins 1 | Pins 2 | Pins 2 |
| DD7FFh | & 2 | & 3 | & 2 | & 3 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| DD800h - | Pins 2 | Pins 2 | Pins 1 | Pins 2 | Pins 2 |
| DDFFFh | & 3 | & 3 | & 2 | & 3 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| E0000h - | Pins 1 | Pins 1 | Pins 2 | Pins 2 | Pins 2 |
| E07FFh | & 2 | & 2 | & 3 | & 3 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| E0800h - | Pins 2 | Pins 1 | Pins 2 | Pins 2 | Pins 2 |
| E0FFFh | & 3 | & 2 | & 3 | & 3 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| E1000h - | Pins 1 | Pins 2 | Pins 2 | Pins 2 | Pins 2 |
| E17FFh | & 2 | & 3 | & 3 | & 3 | & 3 |
|---------------+--------+--------+--------+--------+--------|
| E1800h - | Pins 2 | Pins 2 | Pins 2 | Pins 2 | Pins 2 |
| E1FFFh | & 3 | & 3 | & 3 | & 3 | & 3 |
|------------------------------------------------------------|
| Note: All Pins designated should be in the closed |
| position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM |
|------------------------------------------------------------|
| Setting | J3 |
|----------------------------+-------------------------------|
| » | Enabled | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | Disabled | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 8=128, 7=64, 6=32, |
| 5=16, 4=8, 3=4, 2=2, 1=1. Turn Off the switches and add |
| the values of the Off switches to obtain the correct node |
| address. (On=0, Off=1) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TOPOLOGY |
|------------------------------------------------------------|
| Topology | J6 |
|------------------------------+-----------------------------|
| Star | Closed |
|------------------------------+-----------------------------|
| Linear Bus | Open |
+------------------------------------------------------------+