Insys ISDN Terminal Adapter 4.0 11-02-01-02-00.015 Manuale Utente

Functions 

31 

Version 2.02 – 01.04 

 

 

grams, or in BTX operation, or e.g. using XMODEM transmission protocol, any XON or 
XOFF characters appearing randomly would disturb the operation. 
It depends of the setting of the INSYS ISDN TAs with the command AT&K, whether the 
INSYS ISDN TA supports the XON/XOFF data flow control procedure. 
It depends on the respective software, which runs on the PC, whether the XON/XOFF 
data flow control is supported. 
AT commands to control the serial data transmission 

AT&K 

select data flow control between PC and INSYS ISDN TA 

AT&R 

RTS/CTS behavior 

The INSYS ISDN TA uses a Flash-EPROM for software updates to store the operational 
software. This software can be updated from a local PC via the COM port. Please follow 
the following steps to update the INSYS ISDN TA:

  

 

•  Get the latest software release for the INSYS ISDN TA from your supplier. 
•  Start a terminal emulation on your PC with the capability to run an X-MODEM file 

transfer (i.e. HyperTerminal). 

•  Set the baudrate to 115.200 baud, choose the parameter 8N1 and hardware flow 

control (handshake). 

•  Enter the command AT – the response is OK 
•  Enter the command AT**FLASH