ASCEND COMMUNICATIONS, INC.
===========================

   MAX 2000 T1/PRI

   Card Type        T1, Ethernet                                  
   Chip Set         Unidentified                                  
   I/O Options      AC power connector, 15-pin AUI port, 9-pin    
                    serial port,                                  
                                                                  
                    T1 network interface via RJ-48 connector (2), 
                    alarm relay terminal block, RJ-45 UTP         
                    interface, data port via 44-pin connector,    
   Wiring Type      RJ-48 T1                                      
                                                                  
                    RJ-45 Unshielded Twisted Pair                 
   T1 Transfer Rate 1.544Mbps                                     
   T1 Protocol      AMI, B8ZS                                     
   Frame type       D4, ESF                                       
   Data Bus         External                                      

<gopher://bitreich.org/I/th99/t/A-B/54986-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function       | Label |      Function       | Label |
   |----------------------+-------+---------------------+-------|
   | AC power connector   |  CN1  | RJ-45 UTP connector |  CN5  |
   |----------------------+-------+---------------------+-------|
   | Serial port          |  CN2  | RJ-48 T1 interface  |  CN6  |
   |----------------------+-------+---------------------+-------|
   | 44-pin DTE port      |  CN3  | RJ-48 T1 interface  |  CN7  |
   |----------------------+-------+---------------------+-------|
   | 15-pin AUI interface |  CN4  | Alarm relay         |  CN8  |
   |                      |       | terminal block      |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   | LED  |     Color      |  Status  |        Condition        |
   |------+----------------+----------+-------------------------|
   | PWR  |  Unidentified  |    On    |       Power is on       |
   |------+----------------+----------+-------------------------|
   | PWR  |   Unidentified |   Off    |      Power is off       |
   |------+----------------+----------+-------------------------|
   | ACT  |  Unidentified  |    On    |   Ethernet interface    |
   |      |                |          |         active          |
   |------+----------------+----------+-------------------------|
   | ACT  |   Unidentified |   Off    |   Ethernet interface    |
   |      |                |          |        inactive         |
   |------+----------------+----------+-------------------------|
   | YA1  |  Unidentified  |    On    | Yellow alarm condition  |
   |      |                |          |   detected on network   |
   |      |                |          |         line 1          |
   |------+----------------+----------+-------------------------|
   | YA1  |   Unidentified |   Off    | Yellow alarm condition  |
   |      |                |          | not detected on network |
   |      |                |          |         line 1          |
   |------+----------------+----------+-------------------------|
   | FLT  |   Unidentified |    On    |  Self test in progress  |
   |------+----------------+----------+-------------------------|
   | FLT  |  Unidentified  | Blinking |      Device is not      |
   |      |                |          |    functional due to    |
   |      |                |          | hardware fault or error |
   |------+----------------+----------+-------------------------|
   | FLT  |   Unidentified |   Off    |  Device is functional   |
   |------+----------------+----------+-------------------------|
   | COLL |  Unidentified  |    On    |  Collision detected on  |
   |      |                |          |        Ethernet         |
   |------+----------------+----------+-------------------------|
   | COLL |   Unidentified |   Off    | Collision not detected  |
   |      |                |          |       on Ethernet       |
   |------+----------------+----------+-------------------------|
   | LA1  |   Unidentified |    On    | Link is active on line  |
   |      |                |          |            1            |
   |------+----------------+----------+-------------------------|
   | LA1  |  Unidentified  | Blinking |    Device unable to     |
   |      |                |          |    establish line 1     |
   |      |                |          |     communications,     |
   |      |                |          | possible configuration  |
   |      |                |          |          error          |
   |------+----------------+----------+-------------------------|
   | LA1  |   Unidentified |   Off    |    Link is inactive     |
   |------+----------------+----------+-------------------------|
   | AUI  |  Unidentified  |    On    |  AUI interface is good  |
   |------+----------------+----------+-------------------------|
   | AUI  |   Unidentified |   Off    | AUI interface is broken |
   |------+----------------+----------+-------------------------|
   | RA1  |  Unidentified  |    On    | Improper receive signal |
   |      |                |          |  or no signal detected  |
   |      |                |          |    on network line 1    |
   |------+----------------+----------+-------------------------|
   | RA1  |   Unidentified |   Off    | Improper receive signal |
   |      |                |          |  or no signal detected  |
   |      |                |          |    on network line 1    |
   |------+----------------+----------+-------------------------|
   | COAX |  Unidentified  |    On    |  10Base - 2 interface   |
   |      |                |          |         enabled         |
   |------+----------------+----------+-------------------------|
   | COAX |   Unidentified |   Off    |  10Base - 2 interface   |
   |      |                |          |        disabled         |
   |------+----------------+----------+-------------------------|
   | RA2  |  Unidentified  |    On    | Improper receive signal |
   |      |                |          |  or no signal detected  |
   |      |                |          |    on network line 2    |
   |------+----------------+----------+-------------------------|
   | RA2  |   Unidentified |   Off    | Improper receive signal |
   |      |                |          |  or no signal detected  |
   |      |                |          |    on network line 2    |
   |------+----------------+----------+-------------------------|
   | UTP  |  Unidentified  |    On    |    10BaseT interface    |
   |      |                |          |         enabled         |
   |------+----------------+----------+-------------------------|
   | UTP  |   Unidentified |   Off    |    10BaseT interface    |
   |      |                |          |        disabled         |
   |------+----------------+----------+-------------------------|
   | YA2  |  Unidentified  |    On    | Yellow alarm condition  |
   |      |                |          |   detected on network   |
   |      |                |          |         line 2          |
   |------+----------------+----------+-------------------------|
   | YA2  |   Unidentified |   Off    | Yellow alarm condition  |
   |      |                |          | not detected on network |
   |      |                |          |         line 2          |
   |------+----------------+----------+-------------------------|
   | LA2  |   Unidentified |    On    | Link is active on line  |
   |      |                |          |            2            |
   |------+----------------+----------+-------------------------|
   | LA2  |  Unidentified  | Blinking |    Device unable to     |
   |      |                |          |    establish line 2     |
   |      |                |          |     communications,     |
   |      |                |          | possible configuration  |
   |      |                |          |          error          |
   |------+----------------+----------+-------------------------|
   | LA2  |   Unidentified |   Off    |    Link is inactive     |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/t/A-B/54986-2.png>
   

   MULTIBAND INVERSE MULTIPLEXING CARD

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function        | Label |      Function      | Label |
   |-----------------------+-------+--------------------+-------|
   | Serial host port      |  CN9  | Serial host port   | CN11  |
   | (44-pin connector)    |       | (44-pin connector) |       |
   |-----------------------+-------+--------------------+-------|
   | Unidentified          | CN10  |                    |       |
   |------------------------------------------------------------|
   | Note:                                                      |
   |                                                            |
   | Serial host ports may be configured for RS-449, V.35, or   |
   | X.21 interface. Also available with 6 serial host ports.   |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/t/A-B/54986-3.png>
   

   HOST/6 CARD

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function       | Label |      Function       | Label |
   |----------------------+-------+---------------------+-------|
   | 9-pin serial port    | CN12  | 9-pin serial port   | CN13  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   | MAX 200 T1/PRI can accommodate two expansion modules.      |
   | Available modules are the two options shown above, as well |
   | as the Digital Modem and V.110 cards.                      |
   +------------------------------------------------------------+