3COM CORPORATION

OFFICECONNECT REMOTE 510/511

Card Type              ISDN to Ethernet router
NIC Type               ISDN, Ethernet
Maximum Onboard Memory Unidentified
I/O Options            RJ-45 (2), 9-pin serial port (RS-232),

                       BNC connector, ISDN BRI interface
Network Transfer Rate  128Kbps
Topology               Star
Wiring Type            RJ-45 Unshielded twisted pair

                       ISDN BRI

                       RG58A/U 50ohm coaxial
Data Bus               External

[Image]

                            CONNECTIONS

        Function          Label          Function           Label

  DC power connector       CN1      RJ-45 UTP connector      CN4

  9-pin serial port        CN2      RJ-45 ISDN connector     CN5

  BNC connector            CN3

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

  »   Factory configured - do not alter         RESET           N/A

  »   Hub connection enabled                    MDI/X           In

      Single PC connection enabled              MDI/X           Out

                             DIAGNOSTIC LED(S)

   LED        Color        Status                   Condition

   ALRT      Orange          On             Error detected on network

   ALRT      Orange        Blinking     Device is loading software during
                           (slow)       power up or new software is being
                                                   downloaded

   ALRT      Orange        Blinking       Self diagnostic test is being
                           (fast)           conducted during power up

   ALRT      Orange          Off           Device has passed diagnostic
                                          tests and is working properly

   PWR        Green          On                    Power is on

   PWR        Green        Blinking     New software is being downloaded
                           (slow)

   PWR        Green        Blinking      Self diagnostic test or software
                           (fast)       loading is being conducted during
                                                    power up

   PWR        Green          Off                  Power is off

   LINK      Orange          On            LAN connection established

   LINK      Orange          Off           No LAN connection detected

   ISDN       Green          On          Device is connected to a working
                                                    ISDN line

   ISDN       Green       Blinking         An error condition has been
                                            detected on the ISDN line

   ISDN       Green          Off           ISDN condition not present

   CH1       Yellow          On            ISDN call is in progress on
                                                    channel 1

   CH1       Yellow       Blinking       ISDN call is in dialing state on
                                                    channel 1

   CH1       Yellow          Off         ISDN call is not in progress on
                                                    channel 1

   CH2       Yellow          On            ISDN call is in progress on
                                                    channel 2

   CH2       Yellow       Blinking       ISDN call is in dialing state on
                                                    channel 2

   CH2       Yellow          Off         ISDN call is not in progress on
                                                    channel 2

  VOICE      Yellow          On              Voice call in progress

  VOICE      Yellow       Blinking        Handset is off hook, dial tone
                                        present; call has been dialed and
                                          is ringing out, or an incoming
                                             call is being received

  VOICE      Yellow          Off           Voice call not in progress

   WAN       Yellow          On          WAN connection is valid and can
                                                    pass data

   WAN       Yellow       Blinking       Error detected on the WAN port

  Note:

  ISDN utilization LEDs provide an indication of ISDN utilization as a
  percentage of network loading. If ISDN utilization is consistently
  indicated at 100%, the device may be configured to filter some of the
  data, or an additional link may be required.