Please see the Why CLACom section for more detailed information.
Features | Product | |||
CLACom | CLACom | Win | Win | |
Number of Functions (1) | 117 | 51 | 17 | 13 |
COM Ports Supported (2) | 255 | 20 | See Note | 24 |
Port Initialization Functions | 12 | 7 | 2 | 2 |
Input (Receive) Functions | 12 | 9 | 1 | 1 |
Output (Send) Functions | 7 | 4 | 1 | 1 |
Buffer Overflow Detection | Yes | Yes | Yes | No |
Error Reporting | Yes | Yes | No | Yes |
Modem Status (3) | Yes | Yes | Yes | Yes |
Modem Control | Yes | Yes | Yes | Yes |
Hardware Flow Control | Yes | Yes | Yes | Yes |
Terminal Emulation | Yes | No | No | No |
File Transfer | Yes | No | No | No |
Printed Manual (4) | Yes | No | No | |
Price | $239 - $254 | $49 | Free | $149 |
- Serial Port Functions only. The 16 Bit Windows API contains 17 functions, the 32 Bit Windows API contains 19 functions. In 32 Bits, Serial Ports are treated as Files, which adds many additional functions. WinEvent supports 4 extra functions in 32 bits that are a single function call in CLACom and in the Windows API (16 and 32 bits).
- This number represents the number of simultaneous Ports that the software supports and is limited by Hardware and Operating System. 16 Bit Windows supports up to 8 Serial Ports, 32 Bit Windows supports up to 255 Serial Ports.
- Modem Status indicates the status of a Device such as whether the Phone is Ringing, the Modem is Connected to another Modem, the Device is Enabled, and whether the Device is able to Receive Data. The last two are important because most devices, not just Modems, use these Control Signals to tell Windows when it should send data. WinEvent considers these functions to be "advanced features".
- There is no definitive Manual for the Windows Communications API. To use the Win API, several books will need to be purchased.
Information derived from manufacturer data sheets and documentation, current as of July 1, 2008.