COMTROL CORPORATION
HOSTESS I8
Card Type | I/O controller |
Chipset/Controller | NEC Corporation |
I/O Options | Serial ports (8 or 16) |
Maximum DRAM | 8MB |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
100 Pin interface connector | CN1 | Upgrade connector 4 | P1 |
Upgrade connector 1 | J1 | Upgrade connector 5 | P2 |
Upgrade connector 2 | J2 | Upgrade connector 6 | P4 |
Upgrade connector 3 | J4 |
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Note: Connectors J1, J2 and J4 interface with connectors P1, P2 and P4 respectively. | |||
I/O ADDRESS SELECTION | ||||
Address | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
218h | Off | Off | Off | Off |
21Ch | On | Off | Off | Off |
238h | Off | On | Off | Off |
23Ch | On | On | Off | Off |
318h | Off | Off | On | Off |
31Ch | On | Off | On | Off |
338h | Off | On | On | Off |
33Ch | On | On | On | Off |
618h | Off | Off | Off | On |
61Ch | On | Off | Off | On |
638h | Off | On | Off | On |
63Ch | On | On | Off | On |
718h | Off | Off | On | On |
71Ch | On | Off | On | On |
738h | Off | On | On | On |
73Ch | On | On | On | On |
RS-232 MODE SELECTION | |
Port | RS-232 |
JP1-16 | Pins 1 & 2 closed |

RS-422 MODE SELECTION | |
Jumper | RS-422 |
JP1-4/1 | Pins 2 & 3 closed |
JP1-4/2 | Pins 2 & 3 closed |
JP1-4/3 | Pins 2 & 3 closed |
JP1-4/4 | Pins 1 & 2 closed |
JP5-8 | Pins 2 & 3 closed |
JP9-16 | Pins 2 & 3 closed |

RS-485 MODE SELECTION | |
Port | RS-485 |
JP1-16 | Pins 2 & 3 closed |
DRAM CONFIGURATION | |
Size | Bank 0 |
512KB | (2) 256K x 9 |
2MB | (2) 1M x 9 |
8MB | (2) 4M x 9 |