XIRCOM, INC.
============

   CEM-33BC

   Card Type              Modem (asynchronous), Ethernet          
   Chipset                Unidentified                            
   Maximum Onboard Memory 64KB SRAM/256KB Flash RAM               
   Boot ROM               Not available                           
   Network Transfer Rate  10Mbps                                  
   Topology               Linear Bus/Star                         
   Wire Type              RG-58A/U 50ohm coaxial                  
                                                                  
                          Unshielded twisted pair                 
   Maximum Data Rate      33.6Kbps                                
   Maximum Fax Rate       14.4Kbps                                
   Data Modulation        Bell 212A                               
                                                                  
                          ITU-T V.22, V.22bis, V.23, V.32,        
                          V.32bis, V.34                           
                                                                  
                          AT&T V.32terbo                          
   Fax Modulation         ITU-T V.17, V.27ter, V.29               
   Error                  MNP5, V.42, V.42bis                     
   Correction/Compression 
   Fax Class              Class I & II                            
   Data Bus               PCMCIA Type II                          

<gopher://bitreich.org/I/th99/t/U-Z/53325-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function        | Label |      Function      | Label |
   |-----------------------+-------+--------------------+-------|
   | MAM connector to      |  CN1  | RG-58A/U 50ohm     |  CN4  |
   | PCMCIA card           |       | coaxial connector  |       |
   |-----------------------+-------+--------------------+-------|
   | Telephone line out    |  CN2  | MAM connector to   |  CN5  |
   |                       |       | PCMCIA card        |       |
   |-----------------------+-------+--------------------+-------|
   | MAM connector to      |  CN3  | UTP connector      |  CN6  |
   | PCMCIA card           |       |                    |       |
   |------------------------------------------------------------|
   |      Note: Either the MAM with CN4 or with CN6 may be used |
   |      at one time.                                          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   | LED  |    Color     | Status |          Condition          |
   |------+--------------+--------+-----------------------------|
   | LED1 | Unidentified |   On   |   Card is transmitting or   |
   |      |              |        |   receiving data over the   |
   |      |              |        |            modem            |
   |------+--------------+--------+-----------------------------|
   | LED1 | Unidentified |  Off   | Card is not transmitting or |
   |      |              |        |   receiving data over the   |
   |      |              |        |            modem            |
   |------+--------------+--------+-----------------------------|
   | LED2 | Unidentified |   On   |   Carrier signal detected   |
   |------+--------------+--------+-----------------------------|
   | LED2 | Unidentified |  Off   | Carrier signal not detected |
   |------+--------------+--------+-----------------------------|
   | LED3 | Unidentified |   On   |   Card is transmitting or   |
   |      |              |        |     receiving data over     |
   |      |              |        |          Ethernet           |
   |------+--------------+--------+-----------------------------|
   | LED3 | Unidentified |  Off   | Card is not transmitting or |
   |      |              |        |     receiving data over     |
   |      |              |        |          Ethernet           |
   |------+--------------+--------+-----------------------------|
   | LED4 | Unidentified |   On   |         Power is on         |
   |------+--------------+--------+-----------------------------|
   | LED4 | Unidentified |  Off   |        Power is off         |
   |------+--------------+--------+-----------------------------|
   | LED5 | Unidentified |   On   |   Card is transmitting or   |
   |      |              |        |     receiving data over     |
   |      |              |        |          Ethernet           |
   |------+--------------+--------+-----------------------------|
   | LED5 | Unidentified |  Off   | Card is not transmitting or |
   |      |              |        |     receiving data over     |
   |      |              |        |          Ethernet           |
   |------+--------------+--------+-----------------------------|
   | LED6 | Unidentified |   On   | Network connection is good  |
   |------+--------------+--------+-----------------------------|
   | LED6 | Unidentified |  Off   |    Network connection is    |
   |      |              |        |           broken            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SUPPORTED STANDARD COMMANDS                 |
   |------------------------------------------------------------|
   |                     Basic AT Commands                      |
   |------------------------------------------------------------|
   | +++, A/                                                    |
   |------------------------------------------------------------|
   | A, D, E, H, M, N, P, Q, T, V, W, X, Y, Z                   |
   |------------------------------------------------------------|
   | &C, &D, &F, &G, &K, &P, &S, &V, &W, &Y, &Z                 |
   |------------------------------------------------------------|
   |                    Extended AT Commands                    |
   |------------------------------------------------------------|
   | \A, \B, \C, \G, \K, \N, \Q, \T, \U, \V, \X, \Y, \Z         |
   |------------------------------------------------------------|
   | %A, %C, %E, %G                                             |
   |------------------------------------------------------------|
   |                    Special AT Commands                     |
   |------------------------------------------------------------|
   | -C, "H, -J, "O                                             |
   |------------------------------------------------------------|
   |                        S-Registers                         |
   |------------------------------------------------------------|
   | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S25,     |
   | S30, S46, S82, S95, S108                                   |
   |------------------------------------------------------------|
   |      Note: See MHI help file for complete information.     |
   +------------------------------------------------------------+

                     Proprietary AT Command Set

  See document XIRCOM, INC. CEM-33BTMD for a full command summary.