TS-SER4
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| Product Page | |
| Documents | |
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| Schematic | |
| Mechanical Drawing |
Overview
The TS-SER4 is a PC/104 expansion card with four serial ports using the PC standard 16C550 type UARTs (with 16-byte FIFOs). All four COM ports support RS-232 levels and two of these COM ports can optionally support RS-422/ RS-485 levels.
A flexible interrupt sharing design allows for a large number of COM ports using a minimum number of interrupts. An interrupt status register allows rapid identification of the interrupt source.
This product uses a multi-layer PCB with power and ground planes to minimize noise and EMI issues. The TS-SER4 only requires a single 5V power supply.
Getting Started
See your SBC's PC104 section for information on the ISA 16550 driver and getting a connection to the COM device.
Serial Ports
The two serial ports that are labeled COM_A and COM_B support RS-232 levels only. The two serial ports labeled COM_C and COM_D support a subset of RS-232C handshakes lines that is sufficient for the vast majority of applications. In addition these two ports can optionally have RS-485/RS-422 drivers. The table below shows these ports.
COM/IO Selection
| JP14 | JP15 | JP18 | COMA | COMB |
|---|---|---|---|---|
| On | On | On | 2e8 | 3e8 |
| On | Off | On | 2f8 | 3f8 |
| Off | On | On | 260 | 268 |
| Off | Off | On | Disabled | Disabled |
| On | On | Off | 250 | 258 |
| On | Off | Off | 220 | 228 |
| Off | On | Off | 210 | 218 |
| Off | Off | Off | Disabled | Disabled |
| Note: | JP18 is shared with the parallel port |
Parallel Port
The parallel port is a standard PS/2 mode bidirectional port. It can be assigned to 5 different I/O locations or disabled completely. The parallel port can use interrupts 7 and 9. To select the desired interrupt, simply install a jumper on the associated pins in the IRQ jumper block.
| JP16 | JP17 | JP18 | LPT Address |
|---|---|---|---|
| On | On | On | 278 |
| On | Off | On | 378 |
| Off | On | On | 3bc |
| Off | Off | On | Disabled |
| On | On | Off | 278 |
| On | Off | Off | 27c |
| Off | On | Off | 37c |
| Off | Off | Off | Disabled |