ASCEND COMMUNICATIONS, INC.

PIPELINE 400 T1

Card Type                      T1 Remote Access Server
Chip Set                       Unidentified
I/O Options                    Power connector, 10BaseT Hut via RJ-45
                               connectors (12),

                               15-pin AUI port, BNC connector, UTP
                               interface via RJ-45 connector

                               T1/PRI interface via RJ-45 connectors (2),
                               9-pin serial port
Wiring Type                    Unshielded twisted pair

                               AUI transceiver via DB-15 port

                               RG-58A/U 50ohm coaxial
Ethernet Transfer Rate         10Mbps
T1 Transfer Rate               Unidentified
ISDN Rate                      Unidentified
ISDN Modulation Protocol       PPP, SLIP, X25, MLPPP
Error Correction/Compression   Unidentified
Data Bus                       External

[Image]

                                CONNECTIONS

         Function            Label            Function            Label

  Power                       CN1      10BaseT Hut (optional)    CN5-CN16

  9-pin serial port           CN2      15-pin AUI port            CN17

  T1/PRI interface            CN3      BNC connector              CN18
  (RJ-45)

  T1/PRI interface            CN4      UTP interface (RJ-45)      CN19
  (RJ-45)

                             DIAGNOSTIC LED(S)

  LED        Color         Status                  Condition

  PWR     Unidentified       On                   Power is on

  PWR     Unidentified      Off                  Power is off

  ACT     Unidentified    Blinking     Data is being transmitted/received
                                             on Ethernet interface

  ACT     Unidentified      Off                Data is not being
                                        transmitted/received on Ethernet
                                                   interface

  COL     Unidentified    Blinking      Collisions are being detected on
                                              Ethernet interface

  COL     Unidentified      Off        Collisions are not being detected
                                             on Ethernet interface

  WAN     Unidentified       On              WAN session is active

  WAN     Unidentified    Blinking      Error detected on BRI interface

  WAN     Unidentified      Off           Connection is broken on BRI
                                                   interface

  CON     Unidentified       On        Unit is connected to power source;
                                           power-up test in progress

  CON     Unidentified      Off          Unit is not connected to power
                                          source; power-up test not in
                                                   progress