PROMPTUS COMMUNICATIONS, INC.

OASIS 200T (REV. 1.0)

Card Type                 Switched Bandwidth Controller, Fractional T1/PRI
Chip Set                  Unidentified
I/O Options               Power, 37-pin DTE ports (2), 25-pin serial ports
                          (2),

                          T1 network interface via RJ-48 (2), modem port
                          via RJ-11,

                          terminal port via RJ-11
T1 Data Rate              1.544Mbps
Line Coding               AMI, AMI/ZCS, B8ZS
Framing                   D4, ESF
Data Bus                  External

[Image]

                                CONNECTIONS

         Function           Label             Function             Label

  AC power                   CN1      T1 network port 1             CN6
                                      (RJ-48)

  37-pin DTE port 1          CN2      T1 network port 2             CN7
                                      (RJ-48)

  37-pin DTE port 2          CN3      Modem interface (RJ-11)       CN8

  25-pin serial port 1       CN4      VT 100 terminal               CN9
                                      interface (RJ-11)

  25-pin serial port 1       CN5      Power switch                  SW1

                      DATA PORT 1 INTERFACE SELECTION

               Setting                      JP1/A             JP1/B

  »   V.35 interface enabled               Closed              Open

      RS-422 interface enabled              Open              Closed

                      DATA PORT 2 INTERFACE SELECTION

               Setting                      JP2/A             JP2/B

  »   V.35 interface enabled               Closed              Open

      RS-422 interface enabled              Open              Closed

                             DIAGNOSTIC LED(S)

    LED       Color       Status                   Condition

   SYNC1      Green         On         Layer 1 active on network line 1

   SYNC1      Green      Blinking      Layer 2 active on network line 1

   SYNC1      Green         Off       Layer 1 deactivated on network line
                                                       1

   SYNC2      Green         On         Layer 1 active on network line 2

   SYNC2      Green      Blinking      Layer 2 active on network line 2

   SYNC2      Green         Off       Layer 1 deactivated on network line
                                                       2

   ALM1        Red          On            A valid signal has not been
                                       detected for 3 seconds, or a link
                                        has just been reestablished (10
                                            sec) on network line 1

   ALM1      Yellow         On         Out of frame (OOF) error detected
                                               on network line 1

   ALM1        N/A          Off        No errors detected on network line
                                                       1

   ALM2        Red          On            A valid signal has not been
                                       detected for 3 seconds, or a link
                                        has just been reestablished (10
                                            sec) on network line 2

   ALM2      Yellow         On         Out of frame (OOF) error detected
                                               on network line 2

   ALM2        N/A          Off        No errors detected on network line
                                                       2

    STS       Green         On                    Power is on

    STS       Green         Off           Power is off; unit failed to
                                              properly initialize