XIRCOM, INC.
MCI-23
Card Type | ISDN DSU |
Chip Set | Unidentified |
I/O options | Unidentified |
ISDN Transfer Rate | 64Kbps x 23 |
Data Bus | 16-bit ISA |
Switch Type | 5ESS, DMS-100, MD-110 |
CONNECTIONS | |||
Function | Label | Function | Label |
Line B out | CN1 | Used only on CSU/DSU model | CN4-CN7 |
Line A out | CN2 | Daughterboard headers | CN8-CN10 |
Diagnostic port | CN3 | MVIP bus - not used on this model | CN11 |
BASE I/O ADDRESS | ||||||||||
Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 | SW1/9 | SW1/10 |
0000h | On | On | On | On | On | On | On | On | On | On |
0010h | On | On | On | On | On | On | On | On | On | Off |
0020h | On | On | On | On | On | On | On | On | Off | On |
0030h | On | On | On | On | On | On | On | On | Off | Off |
0040h | On | On | On | On | On | On | On | Off | On | On |
01E0h | On | On | On | On | On | Off | Off | Off | Off | On |
3FB0h | Off | Off | Off | Off | Off | Off | Off | On | Off | Off |
3FC0h | Off | Off | Off | Off | Off | Off | Off | Off | On | On |
3FD0h | Off | Off | Off | Off | Off | Off | Off | Off | On | Off |
3FE0h | Off | Off | Off | Off | Off | Off | Off | Off | Off | On |
3FF0h | Off | Off | Off | Off | Off | Off | Off | Off | Off | Off |
Note: A total of 1023 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/1 is the Most Significant Bit and switch SW1/10 is the Least Significant Bit. The switches have the following decimal values: SW1/1=8192, SW1/2=4096, SW1/3=2048, SW1/4=1024, SW1/5=512, SW1/6=256, SW1/7=128, SW1/8=64, SW1/9=32, SW1/10=16. Turn off the switches and add the values of the switches that are off to obtain the correct memory address. (Off=1, On=0) |
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
LED1 | Yellow | On | Carrier signal not detected on port A |
LED1 | Yellow | Off | Carrier signal detected on port A |
LED2 | Yellow | On | Carrier signal not detected on port B |
LED2 | Yellow | Off | Carrier signal detected on port B |
LED3 | Green | On | Board is active |
LED3 | Green | Off | Board is not active |
LED4 | Yellow | On | Board has failed |
LED4 | Yellow | Off | Board is operating normally |