When setting the address (via the dipswitch) use the silkscreen on the printed circuit board. This silkscreen shows a “1” and a “0”
Table 1. Address Switches
Switch Position | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
Bus Connection | SA9 | SA8 | SA7 | SA6 | SA5 | SA4 | SA3 |
Decimal Weight | 512 | 256 | 128 | 64 | 32 | 16 | 8 |
Hex Weight | 200 | 100 | 80 | 40 | 20 | 10 | 8 |
To install the 232CC card as COM1, 2, 3, or 4, follow the switch settings shown in Table 2. To install at another address, follow the switch settings shown in Table 3.
Table 2. Standard Port Addresses
| Base Hex | Binary | Switch Settings |
| Address | Equivalent | MSB LSB |
|
|
| 7654321 |
COM1 | 3F8 | 1111111000 | 1111111 |
COM2 | 2F8 | 1011111000 | 1011111 |
COM3 | 3E8 | 1111101000 | 1111101 |
COM4 | 2E8 | 1011101000 | 1011101 |
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Documentation Number 232CCxx4502 | 33 |
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph