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

CONNECTIONS
Function	Label	Function	Label
Daisy-chain connector	J1	Lines 3 & 4 (not present on RDSP/21xx)	J3
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)