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# QUATECH, INC.
QS-1000
Category I/O Controller
Chipset Controller 16550 UART
I /O Options Supported Serial ports (4)
Maximum Onboard Memory N/A
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| Serial port 1 - | CN1 | Serial port 3 - | CN3 |
| RJ-11 | | RJ-11 | |
|--------------------+----------+-----------------+----------|
| Serial port 2 - | CN2 | Serial port 4 - | CN4 |
| RJ-11 | | RJ-11 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INPUT CLOCK FREQUENCY |
|------------------------------------------------------------|
| Frequency | J1 |
|--------------------------+---------------------------------|
| ê 1.8432MHz | Pins 1 & 2, 4 & 5, 3 & 6 closed |
|--------------------------+---------------------------------|
| 18.432MHz | Pins 2 & 5 closed |
|--------------------------+---------------------------------|
| 9.216MHz | Pins 2 & 3, 4 & 5 closed |
|--------------------------+---------------------------------|
| 3.6864MHz | Pins 1 & 2, 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 1 HANDSHAKE OPTIONS |
|------------------------------------------------------------|
| Setting | J2 |
|---------------------------------+--------------------------|
| RTS/CTS handshake, DTR/DSR | Pins 1 & 2, 4 & 5, 3 & 6 |
| loopback | closed |
|---------------------------------+--------------------------|
| RTS/CTS loopback, DTR/DSR | Pins 1 & 4, 2 & 3, 5 & 6 |
| handshake | closed |
|---------------------------------+--------------------------|
| RTS/CTS loopback, DTR/DSR | Pins 1 & 4, 3 & 6 closed |
| loopback | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 2 HANDSHAKE OPTIONS |
|------------------------------------------------------------|
| Setting | J3 |
|---------------------------------+--------------------------|
| RTS/CTS handshake, DTR/DSR | Pins 1 & 2, 4 & 5, 3 & 6 |
| loopback | closed |
|---------------------------------+--------------------------|
| RTS/CTS loopback, DTR/DSR | Pins 1 & 4, 2 & 3, 5 & 6 |
| handshake | closed |
|---------------------------------+--------------------------|
| RTS/CTS loopback, DTR/DSR | Pins 1 & 4, 3 & 6 closed |
| loopback | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 3 HANDSHAKE OPTIONS |
|------------------------------------------------------------|
| Setting | J4 |
|---------------------------------+--------------------------|
| RTS/CTS handshake, DTR/DSR | Pins 1 & 2, 4 & 5, 3 & 6 |
| loopback | closed |
|---------------------------------+--------------------------|
| RTS/CTS loopback, DTR/DSR | Pins 1 & 4, 2 & 3, 5 & 6 |
| handshake | closed |
|---------------------------------+--------------------------|
| RTS/CTS loopback, DTR/DSR | Pins 1 & 4, 3 & 6 closed |
| loopback | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT 4 HANDSHAKE OPTIONS |
|------------------------------------------------------------|
| Setting | J5 |
|---------------------------------+--------------------------|
| RTS/CTS handshake, DTR/DSR | Pins 1 & 2, 4 & 5, 3 & 6 |
| loopback | closed |
|---------------------------------+--------------------------|
| RTS/CTS loopback, DTR/DSR | Pins 1 & 4, 2 & 3, 5 & 6 |
| handshake | closed |
|---------------------------------+--------------------------|
| RTS/CTS loopback, DTR/DSR | Pins 1 & 4, 3 & 6 closed |
| loopback | |
+------------------------------------------------------------+