HEWLETT PACKARD COMPANY
HP 28685B
|
Card Type |
Ethernet transceiver |
|
Network Transfer Rate |
10Mbps |
|
Topology |
Star |
|
Wire Type |
Unshielded twisted pair |
|
Data Bus |
AUI via DB-15 connector |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
UTP connector |
CN1 |
AUI via DB-15 connector |
CN2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
|
Transceiver configured for maximum UTP cable length of 100 meters |
SW1/1 |
Off | |
|
Transceiver configured for maximum UTP cable length of 150 meters over Cat 3 cable or 225 meters over Cat 4 cable |
SW1/1 |
On | |
|
Loopback test mode disabled |
SW1/2 |
Off | |
|
Loopback test mode enabled |
SW1/2 |
On | |
|
Heartbeat signal enabled |
SW1/3 |
On | |
|
Heartbeat signal disabled |
SW1/3 |
Off | |
|
SQE signal enabled |
SW1/4 |
On | |
|
SQE signal disabled |
SW1/4 |
Off | |
|
Note:When the transceiver is configured for long cable lengths, it must be connected to another HP transceiver or hub which supports and is configured for this option. | |||
|
DIAGNOSTIC LED(S) | |||
|
LED |
Color |
Status |
Condition |
|
PWR |
Green |
On |
Power is on |
|
PWR |
Green |
Off |
Power is off |
|
LINK |
Green |
On |
Network connection is good |
|
LINK |
Green |
Off |
Network connection is broken |
|
TX |
Green |
On |
Transceiver is transmitting large amounts of data |
|
TX |
Green |
Off |
Transceiver is not transmitting data |
|
TX |
Green |
Blinking |
Transceiver is transmitting data |
|
RX |
Green |
On |
Transceiver is receiving large amounts of data |
|
RX |
Green |
Off |
Transceiver is not receiving data |
|
RX |
Green |
Blinking |
Transceiver is receiving data |
|
POL |
Green |
On |
Line polarity is normal |
|
POL |
Green |
Off |
Line polarity is reversed |
|
COL |
Yellow |
On |
UTP cable is faulty |
|
COL |
Yellow |
Off |
Network collision not detected |
|
COL |
Yellow |
Blinking |
Network collision detected |