3COM CORPORATION

ETHERLINK 16 TP (3C507-TP)

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      16-bit ISA
Topology      Star
Wiring Type   Unshielded twisted pair
Boot ROM      Available

[Image]

               10BASE-T STANDARD COMPATIBILITY CONFIGURATION

                Setting                       Jumper          Setting

  »    DC signal disabled 2                     J1           Pins 2 & 3
                                                               closed

       DC signal enabled (On receive            J1           Pins 1 & 2
       wires) 3                                                closed

  »    Link beat enabled                        J2           Pins 1 & 2
                                                               closed

       Link beat disabled                       J2           Pins 2 & 3
                                                               closed

  »    Receive threshold select normal          J3           Pins 1 & 2
                                                               closed

       Receive threshold select low 1           J3           Pins 2 & 3
                                                               closed

  »    Equalization disabled 2                  J4           Pins 2 & 3
                                                               closed

       Equalization enabled 3                   J4           Pins 1 & 2
                                                               closed

  »    Transmit level select normal (±          J6           Pins 1 & 2
       5V)                                                     closed

       Transmit level select low (±             J6           Pins 2 & 3
       2V)                                                     closed

  »    Cable Impedance select 100ohms           J7           Pins 2 & 3
                                                               closed

       Cable Impedance select 150ohms           J7           Pins 3 & 4
                                                               closed

       Cable Impedance select 75ohms            J7           Pins 1 & 2
                                                               closed

       Note 1: Use this setting with the 3Com MultiConnect TP Module. Do
       not use this setting with the 3Com LinkBuilder, or the SynOptics
       LattisNet Model 3308.

       Note 2: This is the 10BASE-T standard and should be used with all
       10BASE-T standard hubs.

       Note 3: This setting is required when using any Pre-10BASE-T
       SynOptics hub.

                             DIAGNOSTIC LED(S)

    LED         Color          Status                 Condition

     L1         Yellow        Blinking       Data is being transmitted or
                                                      received

     L1         Yellow           Off              Data is not being
                                               transmitted or received

     L2         Green            On              Twisted pair network
                                                 connection is good

     L2         Green         Blinking        Twisted pair wire polarity
                                                      reversed

     L2         Green            Off             Twisted pair network
                                                connection is broken

       Note: Reversed polarity is automatically corrected for but this
       may impede performance. It is suggested that reversed polarity
       wires be corrected to attain maximum performance.