Campbell Hausfeld COM220 Manual Do Utilizador

M0 

Speaker always off 

M1 (default) 

Speaker on during call establishment 

M2 

Speak on during entire call session 

 
S0=0 

Disable Auto Answer 

S0=1 (default)  Answer on second ring 
S0=2 

Answer on third ring 

S0=n 

Answer on (n + 1) ring.  

 

When doing datalogger to datalogger communications with 
the COM220, if more than six rings are specified, the 
datalogger may time out before the modem answers; 
communication will never be established!  Be sure to try 
the set up locally before installing at a remote location. 

To download a new operating system to the COM220, follow these steps: 

1)  You must use an SC532A or an SC532 interface to communicate with the 

modem.  Connect the PC port (called “RS232” on the SC532) to a serial 
port on your computer via an RS232 cable.  Leave the modem 
disconnected for now.  

2)  Make sure that you have the appropriate serial port selected in the left 

panel of the Device Configuration Utility window.  

3)  Click on the Start button. 

4)  In the resulting file open dialogue box that appears, select the file that 

should be sent as the modem's operating system.  Do not attempt to load 
any operating system other than that designed for the COM220 
modem.  

5)  Once you have pressed OK in the file open dialogue box, connect the 

peripheral port on the SC532(A) or SC532 to the CS I/O port on the 
modem with an SC12 cable.  If using an SC532, you will also have to 
apply 12 V to the COM220 via a green connector attached to a power 
supply.  If using an SC532A device, power will be provided to the modem 
by the 12 V adapter connected to the SC532A (NOTE: you must 
highlight/select the operating system file to be sent BEFORE applying 
power to the COM220). 

6)  The program should now send the operating system to the modem.  

Interrupting this process may corrupt the modem operating system.