Citadel TouchStar TS3000, User Manual

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TS3000/TS4000 TouchStar Systems User Manual
Serial Communication Ports
The TouchStar provides two serial ports, labeled COM1 and
COM2. These ports are used to connect devices such as serial
printers, a mouse, an external modem, or to make a serial
network connection. If factory configured to do so, either serial
communication port can also support a serial bar code scanner.
Each is a 9-pin (DB9), DOS-compatible, RS232C serial port, each
with its own address. Each port occupies two input/output
locations. The maximum supported data rate for serial channel
operation through any of these ports is programmable up to
115.2Kbaud. The serial controller tied to these ports conforms to
the UAR/T industry-standard PC16550 device architecture
(including 16-byte FIFOs) with fully independent baud rate
generation.
Port Base I/O IRQ
COM1 03F8 4
COM2 02F8 3
Table 3. Serial Port Configuration
Figure 9. Serial Port (DB9) Connector Pinout
Pin Signal
1 DCD; data carrier detect
2 RXD; receive data
3 TXD; transmit data
4 DTR; data terminal ready
5 GND; ground
6 DSR; data set ready
7 RTS; request to send
8 CTS; clear to send
9 RI; ring indicator
Table 4. Serial Port Connector Pinout
2 - INSTALLATION & MAINTENANCE