STANDARD MICROSYSTEMS CORPORATION

INTERNAL TWISTED PAIR HUB

NIC Type      Arcnet
Transfer Rate 2.5Mbps
Data Bus      8-bit ISA
Topology      Star
Wiring Type   Unshielded twisted pair
Boot ROM      Not available

[Image]

                                CONNECTIONS

     Purpose           Location           Purpose            Location

  RJ11 ports 1-4       J1 - J4          Internal hub         JP1 & JP2
                                         connectors

[Image]

                             DIAGNOSTIC LED(S)

    LED       Color        Status                   Condition

   LED1       Green          On                   Data is being
                                           transmitted/received on J2

   LED1       Green          Off                Data is not being
                                           transmitted/received on J2

   LED1       Green       Blinking            Reconfiguration or J2

   LED2       Green          On                   Data is being
                                           transmitted/received on J3

   LED2       Green          Off                Data is not being
                                           transmitted/received on J3

   LED2       Green       Blinking            Reconfiguration on J2

   LED3       Green          On                   Data is being
                                           transmitted/received on J4

   LED3       Green          Off                Data is not being
                                           transmitted/received on J4

   LED3       Green       Blinking            Reconfiguration on J2

   LED4       Green          On                   Data is being
                                           transmitted/received on J1

   LED4       Green          Off                Data is not being
                                           transmitted/received on J1

   LED4       Green       Blinking            Reconfiguration on J2

   LED5        Red           On               Polarity is reversed

   LED5        Red           Off            Polarity is not reversed