ASCEND COMMUNICATIONS, INC.

MULTIBAND PLUS - BRI

Card Type                 ISDN BRI
Chip Set                  Unidentified
I/O Options               AC power connector, power switch, serial port,

                          ISDN BRI network interface via RJ-45 connector
                          (8),

                          palmtop port via RJ-12 connector (2),data port
                          via 44-pin connector (4)
Wiring Type               BRI
Network Transfer Rate     64Kbps
Data Bus                  External

[Image]

                                CONNECTIONS

         Function             Label            Function            Label

  AC power connector           CN1     RJ-45 network interface     CN10
                                       - line 2

  Serial port                  CN2     RJ-45 network interface     CN11
                                       - line 3

  44-pin DTE port 1            CN3     RJ-45 network interface     CN12
                                       - line 4

  RJ-12 palmtop connector      CN4     RJ-45 network interface     CN13
                                       - line 5

  RJ-12 palmtop connector      CN5     RJ-45 network interface     CN14
                                       - line 6

  44-pin DTE port 2            CN6     RJ-45 network interface     CN15
                                       - line 7

  44-pin DTE port 3            CN7     RJ-45 network interface     CN16
                                       - line 8

  44-pin DTE port 4            CN8     Power                        SW1

  RJ-45 network interface      CN9
  - line 1

                              DIAGNOSTIC LEDS

   LED      Color        Status                   Condition

   PW       Green          On                    Power is on

   PW          Green      Off                    Power is off

   ER           Red        On               Self test in progress

   ER           Red     Blinking        Device is not functional due to
                                                fault or error

   ER           Red       Off                Device is functional

   P1       Green          On                Channel 1 is active

   P1          Green    Blinking      Device is in diagnostic mode. BERT,
                                     auto-BERT, remote loopback, or local
                                          loopback test in progress

   P1          Green      Off               Channel 1 is inactive

   P2       Green          On                Channel 2 is active

   P2          Green    Blinking      Device is in diagnostic mode. BERT,
                                     auto-BERT, remote loopback, or local
                                          loopback test in progress

   P2          Green      Off               Channel 2 is inactive

   P3       Green          On                Channel 3 is active

   P3          Green    Blinking      Device is in diagnostic mode. BERT,
                                     auto-BERT, remote loopback, or local
                                          loopback test in progress

   P3          Green      Off               Channel 3 is inactive

   P4       Green          On                Channel 4 is active

   P4          Green    Blinking      Device is in diagnostic mode. BERT,
                                     auto-BERT, remote loopback, or local
                                          loopback test in progress

   P4          Green      Off               Channel 4 is inactive

   L1       Green          On          Valid logical link established on
                                               ISDN BRI line 1

   L1          Green    Blinking      Physical link is good, logical link
                                          is broken. ISDN BRI line 1
                                      connection not compatible with unit
                                               or configuration

   L1          Green      Off         Link is broken on ISDN BRI line 1

   L2       Green          On          Valid logical link established on
                                               ISDN BRI line 2

   L2          Green    Blinking      Physical link is good, logical link
                                          is broken. ISDN BRI line 2
                                      connection not compatible with unit
                                               or configuration

   L2          Green      Off         Link is broken on ISDN BRI line 2

   L3       Green          On          Valid logical link established on
                                               ISDN BRI line 3

   L3          Green    Blinking      Physical link is good, logical link
                                          is broken. ISDN BRI line 3
                                      connection not compatible with unit
                                               or configuration

   L3          Green      Off         Link is broken on ISDN BRI line 3

   L4       Green          On          Valid logical link established on
                                               ISDN BRI line 4

   L4          Green    Blinking      Physical link is good, logical link
                                          is broken. ISDN BRI line 4
                                      connection not compatible with unit
                                               or configuration

   L4          Green      Off         Link is broken on ISDN BRI line 4

                          DIAGNOSTIC LEDS (CONT.)

   L5      Green          On          Valid logical link established on
                                               ISDN BRI line 5

   L5          Green   Blinking      Physical link is good, logical link
                                    is broken. ISDN BRI line 5 connection
                                         not compatible with unit or
                                                configuration

   L5          Green      Off         Link is broken on ISDN BRI line 5

   L6      Green          On          Valid logical link established on
                                               ISDN BRI line 6

   L6          Green   Blinking      Physical link is good, logical link
                                    is broken. ISDN BRI line 6 connection
                                         not compatible with unit or
                                                configuration

   L6          Green      Off         Link is broken on ISDN BRI line 6

   L7      Green          On          Valid logical link established on
                                               ISDN BRI line 7

   L7          Green   Blinking      Physical link is good, logical link
                                    is broken. ISDN BRI line 7 connection
                                         not compatible with unit or
                                                configuration

   L7          Green      Off         Link is broken on ISDN BRI line 7

   L8      Green          On          Valid logical link established on
                                               ISDN BRI line 8

   L8          Green   Blinking      Physical link is good, logical link
                                    is broken. ISDN BRI line 8 connection
                                         not compatible with unit or
                                                configuration

   L8          Green      Off         Link is broken on ISDN BRI line 8