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# MACNET
SE470E (VER. A)
NIC Type: Ethernet
Transfer Rate: 10Mbps
Data Bus: 32-bit SE Processor direct slot (Apple)
Topology: Linear Bus
Star
Wiring Type AUI transceiver via DB-15 port
RG-58A/U 50ohm coaxial
Shielded/Unshielded twisted pair
Boot ROM Available
IMG IMG 1
+------------------------------------------------------------+
| CABLE TYPE |
|------------------------------------------------------------|
| Type | SW1 |
|----------------------------------+-------------------------|
| AUI transceiver via DB-15 port | Position 2 |
|----------------------------------+-------------------------|
| RG-58A/U 50ohm coaxial | Position 3 |
|----------------------------------+-------------------------|
| Shielded/unshielded twisted pair | Position 1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ON-BOARD RAM |
|------------------------------------------------------------|
| Setting | JP1 |
|--------------------------------+---------------------------|
| » | 64KB | Closed |
|------+-------------------------+---------------------------|
| | 16KB | Open |
|------------------------------------------------------------|
| Note:The location of JP1 is not specified in |
| manufacturer’s documentation. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM |
|------------------------------------------------------------|
| Setting | JP2 | JP3 |
|----------------------------------+------------+------------|
| » | 27128 ROM chip installed | Closed | N/A |
|-------+--------------------------+------------+------------|
| | 27256 ROM chip installed | Open | N/A |
|-------+--------------------------+------------+------------|
| » | 74LS471 ROM chip | N/A | Closed |
| | installed | | |
|-------+--------------------------+------------+------------|
| | PJ2 ROM chip installed | N/A | Open |
|------------------------------------------------------------|
| Note:The locations of JP2 and JP3 are not specified in |
| manufacturer’s documentation. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LEDS |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+-------+--------+-----------------------------------|
| LED 1 | Green | On | Data is being transmitted or |
| | | | received |
|-------+-------+--------+-----------------------------------|
| LED 1 | Green | Off | Data is not being transmitted or |
| | | | received |
|-------+-------+--------+-----------------------------------|
| LED 2 | Red | On | Twisted pair network connection |
| | | | is good |
|-------+-------+--------+-----------------------------------|
| LED 2 | Red | Off | Twisted pair network connection |
| | | | is broken |
+------------------------------------------------------------+