RHETOREX, INC.

RDSP/232, RDSP/264

Card Type

Telephony

I/O Options

Telephone in/out (2)

Data Bus

8-bit ISA

CONNECTIONS

Function

Label

Function

Label

Lines 1 & 2

8B1

Signal ground

8EE1

BASE I/O ADDRESS

Setting

EJ1/A

EJ1/B

EJ1/C

EJ1/D

EJ1/E

EJ1/F

EJ1/G

EJ1/H

EJ1/I

EJ1/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. EJ1/A is the Most Significant Bit and jumper EJ1/J is the Least Significant Bit. The jumpers have the following decimal values: EJ1/A=512, EJ1/B=256, EJ1/C=128, EJ1/D=64, EJ1/E=32, EJ1/F=16, EJ1/G=8, EJ1/H=4, EJ1/I=2, EJ1/J=1. Open the jumpers and add the values of the open jumpers to obtain the correct memory address. (Open=1, Closed=0)