(TXT) View Source
# DIGITAL COMMUNICATIONS ASSOCIATES, INC.
MACIRMATRAC
NIC Type Token Ring
Transfer Rate 4/16Mbps
Data Bus Apple NuBus
Topology Token ring
Wiring Type Unshielded twisted pair
Shielded twisted pair via DB9
Fiber optic cable
Boot ROM Available
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-------------------------------+----------------------------|
| Ring Interface Module | CN1 |
+------------------------------------------------------------+
(IMG) IMG 2
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-------------------------------+----------------------------|
| Mother card | CN1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CABLE TYPE |
|------------------------------------------------------------|
| Type | JP1A | JP1B | JP2A | JP2B |
|--------------+-----------+-----------+----------+----------|
| Shielded | Pins 1 & | Pins 1 & | Pins 1 & | Pins 1 & |
| twisted pair | 2 closed | 2 closed | 2 closed | 2 closed |
|--------------+-----------+-----------+----------+----------|
| Unshielded | Pins 2 & | Pins 2 & | Pins 2 & | Pins 2 & |
| twisted pair | 3 closed | 3 closed | 3 closed | 3 closed |
+------------------------------------------------------------+
(IMG) IMG 3
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-------------------------------+----------------------------|
| Mother card | CN1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CABLE TYPE |
|------------------------------------------------------------|
| Type | JP1 |
|-------------------------------+----------------------------|
| Shielded twisted pair | Pins 1 & 2 closed |
|-------------------------------+----------------------------|
| Unshielded twisted pair | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS NOTES |
|------------------------------------------------------------|
| There are three other ring interface modules available: |
| fiber optic, 4Mbps STP only software configurable, and |
| 4/16Mbps STP only software configurable. These additional |
| modules have no hardware configurable options, and are |
| therefore not illustrated. Connections between the ring |
| interface module and the mother card are identical for |
| every version of module. |
+------------------------------------------------------------+