ARNET CORPORATION
SYNCOM/386, SYNCOM/386I
Card Type | Serial |
Processor | 80386SX |
Processor Speed | 25MHz |
Chip Set | Zilog/AMD |
Maximum Onboard Memory | 5MB RAM |
I/O Options | Serial ports (4) |
Data Bus | 16-bit ISA |

CONNECTIONS | |||
Function | Label | Function | Label |
Four-port daughterboard header | J1 | Two-port daughterboard header | J2 |
USER CONFIGURABLE SETTINGS | |||
Setting | Label | Position | |
| » | Fast Select enabled | JP1 | Pins 2 & 3 closed |
Fast Select disabled | JP1 | Pins 1 & 2 closed | |
BASE I/O ADDRESS | |||||
Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 | |
03Ch | On | On | On | On | |
07Ch | On | On | On | Off | |
0BCh | On | On | Off | On | |
0FCh | On | On | Off | Off | |
13Ch | On | Off | On | On | |
17Ch | On | Off | On | Off | |
1BCh | On | Off | Off | On | |
1FCh | On | Off | Off | Off | |
23Ch | Off | On | On | On | |
27Ch | Off | On | On | Off | |
2BCh | Off | On | Off | On | |
2FCh | Off | On | Off | Off | |
| » | 33Ch | Off | Off | On | On |
37Ch | Off | Off | On | Off | |
3BCh | Off | Off | Off | On | |
3FCh | Off | Off | Off | Off | |

CONNECTIONS | |||
Function | Label | Function | Label |
V.35 or V.24 serial ports via DB-37 | CN1 | Daughterboard header | J1 |
Note: Serial ports are provided via included adapter cable. | |||
PORT 1 TYPE | |||||
Setting | JP1 | JP2 | JP3 | JP4 | JP5 |
V.35 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
V.24 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated are in the closed position. | |||||
PORT 2 TYPE | |||||
Setting | JP6 | JP7 | JP8 | JP9 | JP10 |
V.35 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
V.24 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated are in the closed position. | |||||

CONNECTIONS | |||
Function | Label | Function | Label |
V.35 or V.24 serial ports via DB-62 | CN1 | Daughterboard header | J2 |
Daughterboard header | J1 | ||
Note: Serial ports are provided via included adapter cable. | |||
PORT 1 TYPE | |||||
Setting | JP1 | JP2 | JP3 | JP4 | JP5 |
V.35 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
V.24 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated are in the closed position. | |||||
PORT 2 TYPE | |||||
Setting | JP6 | JP7 | JP8 | JP9 | JP10 |
V.35 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
V.24 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated are in the closed position. | |||||
PORT 3 TYPE | |||||
Setting | JP11 | JP12 | JP13 | JP14 | JP15 |
V.35 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
V.24 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated are in the closed position. | |||||
PORT 4 TYPE | |||||
Setting | JP16 | JP17 | JP18 | JP19 | JP20 |
V.35 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
V.24 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated are in the closed position. | |||||

TWO-PORT BOARD

FOUR-PORT BOARD
CONNECTIONS | |||
Function | Label | Function | Label |
X.21 serial ports via DB-44 | CN1 | Daughterboard header | J1 |
Note: Serial ports are provided via included adapter cable. | |||