Card Type	Sound card
Chipset	Unidentified
Maximum Onboard Memory	1MB EPROM
I/O Options	Audio out
Data Bus	IPCCPU expansion bus

CONNECTIONS
Function	Label	Function	Label
IPCCPU expansion bus	P1	Volume adjustment	PT1
Audio out (see pinout below)	P2	Speed adjustment	PT2

CONNECTIONS
Function	Pin	Function	Pin
Audio line out	1	Speaker out	3
Audio line out	2	Ground	4

USER CONFIGURABLE SETTINGS
Setting	Label	Position
Each message is 6553 bytes	JP3	Pins 1 & 2 closed
Each message is 13107 bytes	JP3	Pins 2 & 3 closed

EPROM CONFIGURATION
Size	EPROM
32KB	(1) 27C256
64KB	(1) 27C512
128KB	(1) 27C1001
256KB	(1) 27C2001
512KB	(1) 27C4001
1MB	(1) 27C8001

EPROM JUMPER CONFIGURATION
Size	JP3	JP4	JP5	JP6
32KB	Open	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
64KB	Open	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
128KB	See user config. table	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
256KB	See user config. table	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
512KB	See user config. table	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
1MB	See user config. table	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
Note: To determine how many messages the IPCVOICE card will hold, divide the size of the chip by the size of each message (determined by JP3). The amount of messages held by 32KB and 64KB versions is unidentified.

BASE I/O ADDRESS SELECTION
Setting	JP1/A	JP1/B	JP1/C	JP1/D	JP1/E
90h	Closed	Open	Open	Open	Open
A0h	Open	Closed	Open	Open	Open
B0h	Open	Open	Closed	Open	Open
C0h	Open	Open	Open	Closed	Open
E0h	Open	Open	Open	Open	Closed

CARD NUMBER SELECTION
Setting	JP2/A	JP2/B	JP2/C	JP2/D
1	Closed	Open	Open	Open
2	Open	Closed	Open	Open
3	Open	Open	Closed	Open
4	Open	Open	Open	Closed

MISCELLANEOUS TECHNICAL NOTES

This card is designed to be used with Decision Computer International Co., Ltd.’s IPCCPU board. See this document for more information.