RHETOREX, INC.
==============

   RDSP/2108, RDSP/2132, RDSP/2164, RDSP/4108, RDSP/4132,
   RDSP/4164

   Card Type    Telephony                                         
   I/O Options  Telephone in/out (2 on RDSP/21xx, 4 on RDSP/41xx) 
   Data Bus     8-bit ISA                                         

<gopher://bitreich.org/I/th99/t/P-R/52145-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |   Function   | Label |          Function           | Label |
   |--------------+-------+-----------------------------+-------|
   | Daisy-chain  |  J1   | Lines 3 & 4 (not present on |  J3   |
   | connector    |       | RDSP/21xx)                  |       |
   |--------------+-------+-----------------------------+-------|
   | Lines 1 & 2  |  J2   | Audio out                   |  J4   |
   +------------------------------------------------------------+

+-----------------------------------------------------------------------------+
|                              BASE I/O ADDRESS                               |
|-----------------------------------------------------------------------------|
|Setting| W1/A | W1/B | W1/C | W1/D | W1/E | W1/F | W1/G | W1/H | W1/I | W1/J |
|-------+------+------+------+------+------+------+------+------+------+------|
|  |000h|Closed|Closed|Closed|Closed|Closed|Closed|Closed|Closed|Closed|Closed|
|--+----+------+------+------+------+------+------+------+------+------+------|
|  |001h|Closed|Closed|Closed|Closed|Closed|Closed|Closed|Closed|Closed| Open |
|--+----+------+------+------+------+------+------+------+------+------+------|
|  |002h|Closed|Closed|Closed|Closed|Closed|Closed|Closed|Closed| Open |Closed|
|--+----+------+------+------+------+------+------+------+------+------+------|
|  |003h|Closed|Closed|Closed|Closed|Closed|Closed|Closed|Closed| Open | Open |
|--+----+------+------+------+------+------+------+------+------+------+------|
|  |004h|Closed|Closed|Closed|Closed|Closed|Closed|Closed| Open |Closed|Closed|
|--+----+------+------+------+------+------+------+------+------+------+------|
|>> |300h| Open | Open |Closed|Closed|Closed|Closed|Closed|Closed|Closed|Closed|
|--+----+------+------+------+------+------+------+------+------+------+------|
|  |3FBh| Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open |
|--+----+------+------+------+------+------+------+------+------+------+------|
|  |3FCh| Open | Open | Open | Open | Open | Open | Open | Open |Closed|Closed|
|--+----+------+------+------+------+------+------+------+------+------+------|
|  |3FDh| Open | Open | Open | Open | Open | Open | Open | Open |Closed| Open |
|--+----+------+------+------+------+------+------+------+------+------+------|
|  |3FEh| Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed|
|--+----+------+------+------+------+------+------+------+------+------+------|
|  |3FFh| Open | Open | Open | Open | Open | Open | Open | Open | Open | Open |
|-----------------------------------------------------------------------------|
|     Note: A total of 1023 base address settings are available. The jumpers  |
|     are a binary representation of the decimal memory addresses. W1/A is the|
|     Most Significant Bit and jumper W1/J is the Least Significant Bit. The  |
|     jumpers have the following decimal values: W1/A=512, W1/B=256, W1/C=128,|
|     W1/D=64, W1/E=32, W1/F=16, W1/G=8, W1/H=4, W1/I=2, W1/J=1. Open the     |
|     jumpers and add the values of the open jumpers to obtain the correct    |
|     memory address. (Open=1, Closed=0)                                      |
+-----------------------------------------------------------------------------+