COMTROL CORPORATION
HOSTESS 554 RJ45
Card Type | Serial |
Chipset | 16554 |
I/O Options | Serial ports (4) |
Data Bus | 16-bit ISA |
Card Size | Full-height, half-length |

CONNECTIONS | |||
Function | Label | Function | Label |
Serial port 1 | J1 | Serial port 3 | J3 |
Serial port 2 | J2 | Serial port 4 | J4 |
USER CONFIGURABLE SETTINGS | ||
Setting | Label | Position |
Interrupt mask enabled | SW2/1 | On |
Interrupt mask disabled | SW2/1 | Off |
SERIAL PORT 1 CONFIGURATION | |||||
Setting | JP2/A | JP2/B | JP2/C | JP2/D | JP2/E |
RS-232 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
RS-422 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
Note:Pins designated are in the closed position. | |||||
SERIAL PORT 2 CONFIGURATION | |||||
Setting | JP3/A | JP3/B | JP3/C | JP3/D | JP3/E |
RS-232 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
RS-422 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
Note:Pins designated are in the closed position. | |||||
SERIAL PORT 3 CONFIGURATION | |||||
Setting | JP4/A | JP4/B | JP4/C | JP4/D | JP4/E |
RS-232 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
RS-422 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
Note:Pins designated are in the closed position. | |||||
SERIAL PORT 4 CONFIGURATION | |||||
Setting | JP5/A | JP5/B | JP5/C | JP5/D | JP5/E |
RS-232 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
RS-422 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
Note:Pins designated are in the closed position. | |||||
BASE I/O ADDRESS SELECTION | |||||||||
Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 | |
0000h | On | On | On | On | On | On | On | On | |
0020h | Off | On | On | On | On | On | On | On | |
0040h | On | Off | On | On | On | On | On | On | |
0060h | Off | Off | On | On | On | On | On | On | |
0080h | On | On | Off | On | On | On | On | On | |
| » | 0280h | On | On | Off | On | Off | On | On | On |
1F60h | Off | Off | On | Off | Off | Off | Off | Off | |
1F80h | On | On | Off | Off | Off | Off | Off | Off | |
1FA0h | Off | On | Off | Off | Off | Off | Off | Off | |
1FC0h | On | Off | Off | Off | Off | Off | Off | Off | |
1FE0h | Off | Off | Off | Off | Off | Off | Off | Off | |
Note: A total of 512 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/8 is the Most Significant Bit and switch SW1/1 is the Least Significant Bit. The switches have the following decimal values: SW1/8=4096, SW1/7=2048, SW1/6=1024, SW1/5=512, SW1/4=256, SW1/3=128, SW1/2=64, SW1/1=32. Turn off the switches and add the values of the switches that are off to obtain the correct memory address. (Off=1, On=0) | |||||||||
INTERRUPT SELECTION | ||||||||
Setting | JP1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 | SW2/7 | SW2/8 |
2 | Pins 1 & 2 | On | Off | Off | Off | Off | Off | Off |
3 | Pins 1 & 2 | Off | On | Off | Off | Off | Off | Off |
4 | Pins 1 & 2 | Off | Off | On | Off | Off | Off | Off |
5 | Pins 1 & 2 | Off | Off | Off | On | Off | Off | Off |
7 | Pins 1 & 2 | Off | Off | Off | Off | On | Off | Off |
10 | Pins 1 & 2 | Off | Off | Off | Off | Off | On | Off |
11 | Pins 1 & 2 | Off | Off | Off | Off | Off | Off | On |
12 | Pins 2 & 3 | Off | Off | Off | Off | Off | Off | Off |
Note:Pins designated are in the closed position. | ||||||||