NATURAL MICROSYSTEMS CORPORATION
VBX 1200
| 
 Card Type  | 
 Telephony  | 
| 
 Chip Set  | 
 TI 320C10  | 
| 
 I/O options  | 
 MVIP bus  | 
| 
 Data Bus  | 
 16-bit ISA  | 
Note: S1 is located on the back of the daughterboard.
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | 
| 
 MVIP bus  | 
 JP1  | 
 Daughterboard headers  | 
 JP3, JP4  | 
| 
 Note: Exact location of headers is unidentified. | |||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Setting  | 
 Label  | 
 Position  | |
| » | 
 Interrupt resistor enabled  | 
 JP5/A  | 
 Closed  | 
| 
 Interrupt resistor disabled  | 
 JP5/A  | 
 Open  | |
| » | 
 Factory configured - do not alter  | 
 S1/5  | 
 Off  | 
| » | 
 Factory configured - do not alter  | 
 S2/5  | 
 Off  | 
| 
 Note: If multiple boards are installed in a system, only one board should have JP5/A closed. | |||
| 
 BASE I/O ADDRESS (MAIN BOARD)  | |||||
| 
 Setting  | 
 S2/1  | 
 S2/2  | 
 S2/3  | 
 S2/4  | |
| » | 
 100h  | 
 On  | 
 On  | 
 On  | 
 On  | 
| 
 140h  | 
 Off  | 
 On  | 
 On  | 
 On  | |
| 
 180h  | 
 On  | 
 Off  | 
 On  | 
 On  | |
| 
 280h  | 
 Off  | 
 Off  | 
 On  | 
 On  | |
| 
 500h  | 
 On  | 
 On  | 
 Off  | 
 On  | |
| 
 540h  | 
 Off  | 
 On  | 
 Off  | 
 On  | |
| 
 580h  | 
 On  | 
 Off  | 
 Off  | 
 On  | |
| 
 680h  | 
 Off  | 
 Off  | 
 Off  | 
 On  | |
| 
 900h  | 
 On  | 
 On  | 
 On  | 
 Off  | |
| 
 940h  | 
 Off  | 
 On  | 
 On  | 
 Off  | |
| 
 980h  | 
 On  | 
 Off  | 
 On  | 
 Off  | |
| 
 A80h  | 
 Off  | 
 Off  | 
 On  | 
 Off  | |
| 
 D00h  | 
 On  | 
 On  | 
 Off  | 
 Off  | |
| 
 D40h  | 
 Off  | 
 On  | 
 Off  | 
 Off  | |
| 
 D80h  | 
 On  | 
 Off  | 
 Off  | 
 Off  | |
| 
 E80h  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | |
| 
 BASE I/O ADDRESS (DAUGHTERBOARD)  | |||||
| 
 Setting  | 
 S1/1  | 
 S1/2  | 
 S1/3  | 
 S1/4  | |
| 
 100h  | 
 On  | 
 On  | 
 On  | 
 On  | |
| 
 140h  | 
 Off  | 
 On  | 
 On  | 
 On  | |
| » | 
 180h  | 
 On  | 
 Off  | 
 On  | 
 On  | 
| 
 280h  | 
 Off  | 
 Off  | 
 On  | 
 On  | |
| 
 500h  | 
 On  | 
 On  | 
 Off  | 
 On  | |
| 
 540h  | 
 Off  | 
 On  | 
 Off  | 
 On  | |
| 
 580h  | 
 On  | 
 Off  | 
 Off  | 
 On  | |
| 
 680h  | 
 Off  | 
 Off  | 
 Off  | 
 On  | |
| 
 900h  | 
 On  | 
 On  | 
 On  | 
 Off  | |
| 
 940h  | 
 Off  | 
 On  | 
 On  | 
 Off  | |
| 
 980h  | 
 On  | 
 Off  | 
 On  | 
 Off  | |
| 
 A80h  | 
 Off  | 
 Off  | 
 On  | 
 Off  | |
| 
 D00h  | 
 On  | 
 On  | 
 Off  | 
 Off  | |
| 
 D40h  | 
 Off  | 
 On  | 
 Off  | 
 Off  | |
| 
 D80h  | 
 On  | 
 Off  | 
 Off  | 
 Off  | |
| 
 E80h  | 
 Off  | 
 Off  | 
 Off  | 
 Off  | |
| 
 MVIP VOICE TRANSMISSION STREAM  | |||||
| 
 Setting  | 
 JP6/A  | 
 JP6/B  | 
 JP6/C  | 
 JP6/D  | |
| 
 Channel 0  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | |
| 
 Channel 2  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | |
| 
 Channel 4  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | |
| » | 
 Channel 6  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 MVIP DATA TRANSMISSION STREAM  | |||||
| 
 Setting  | 
 JP6/E  | 
 JP6/F  | 
 JP6/G  | 
 JP6/H  | |
| 
 Channel 1  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | |
| 
 Channel 3  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | |
| 
 Channel 5  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | |
| » | 
 Channel 7  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 MVIP VOICE RECEIVE STREAM  | |||||
| 
 Setting  | 
 JP9/A  | 
 JP9/B  | 
 JP9/C  | 
 JP9/D  | |
| 
 Channel 0  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | |
| 
 Channel 2  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | |
| 
 Channel 4  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | |
| » | 
 Channel 6  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 MVIP DATA RECEIVE STREAM  | |||||
| 
 Setting  | 
 JP9/E  | 
 JP9/F  | 
 JP9/G  | 
 JP9/H  | |
| 
 Channel 1  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | |
| 
 Channel 3  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | |
| 
 Channel 5  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | |
| » | 
 Channel 7  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 MVIP STREAMS (MAIN BOARD)  | ||||
| 
 Setting  | 
 S2/6  | 
 S2/7  | 
 S2/8  | |
| » | 
 0-5  | 
 Off  | 
 Off  | 
 Off  | 
| 
 6-11  | 
 On  | 
 Off  | 
 Off  | |
| 
 12-17  | 
 Off  | 
 On  | 
 Off  | |
| 
 18-23  | 
 On  | 
 On  | 
 Off  | |
| 
 24-29  | 
 Off  | 
 Off  | 
 On  | |
| 
 Disabled  | 
 On  | 
 On  | 
 On  | |
| 
 MVIP STREAMS (DAUGHTERBOARD)  | ||||
| 
 Setting  | 
 S1/6  | 
 S1/7  | 
 S1/8  | |
| 
 0-5  | 
 Off  | 
 Off  | 
 Off  | |
| 
 6-11  | 
 On  | 
 Off  | 
 Off  | |
| 
 12-17  | 
 Off  | 
 On  | 
 Off  | |
| 
 18-23  | 
 On  | 
 On  | 
 Off  | |
| » | 
 24-29  | 
 Off  | 
 Off  | 
 On  | 
| 
 Disabled  | 
 On  | 
 On  | 
 On  | |
| 
 INTERRUPT  | ||||||||
| 
 Setting  | 
 JP5/B  | 
 JP5/C  | 
 JP5/D  | 
 JP5/E  | 
 JP5/F  | 
 JP5/G  | 
 JP5/H  | 
 JP5/I  | 
| 
 IR/FONT>  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 Closed  | 
 0pen  | 
 0pen  | 
 0pen  | 
| 
 IRQ3  | 
 Closed  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
| 
 IRQ4  | 
 0pen  | 
 Closed  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
| 
 IRQ5  | 
 0pen  | 
 0pen  | 
 Closed  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
| 
 IRQ7  | 
 0pen  | 
 0pen  | 
 0pen  | 
 Closed  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
| 
 IRQ11  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 Closed  | 
 0pen  | 
 0pen  | 
| 
 IRQ12  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 Closed  | 
 0pen  | 
| 
 IRQ15  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 0pen  | 
 Closed  | 
| 
 Note: If multiple boards are installed in a system, assign them all the same IRQ. | ||||||||