Westermo TD-22 - Manual (Page 30)

31 6177-2203
&Xn – Select Synchronous Clock Source
Selects the source of the transmit clock for the synchronous mode of operation. The parameter value
if valid is written to S27 bits 4 and 5.
In asynchronous mode, the transmit and receive clocks are turned OFF. In synchronous mode, the
clocks are turned ON with the frequency of 1200Hz or faster corresponding to the speed that is
selected for modem operation.
&X0 Selects internal timing. The modem generates the transmit clock signal and applies it to
the TXCLK serial interface. (Default.)
&X1 Selects external timing. The local DTE sources the transmit clock signal on the EXC
input of the serial interface. The modem applies this clock to the TXC output at the
serial interface.
&X2 Selects slave receive timing. The modem derives the transmit clock signal from the
incoming carrier and applies it to the TXC output at the serial interface.
Yn – Long Space Disconnect
This command enables/disables the generation and response to long space disconnect. The parameter
value, if valid, is written to S21 bit 7.
Y0 Disables long space disconnect. (Default.)
Y1 Enables long space disconnect. In non-error correction mode, the modem will send a
long space of four seconds prior to going on-hook. In error correction mode, the
modem will respond to the receipt of a long space (i.e., a break signal greater than 1.6
seconds) by going on-hook.
&Yn – Designate a Default Reset Profile
Selects which user profile will be used after a hard reset.
&Y0 The modem will use profile 0.
&Y1 The modem will use profile 1.
Please also refer to AT&W