Technical Reference for ZyXEL omni.net series

The fax may achieve a14400 bps transmission speed. The character format is 8 bit data, no parity, and 1 stop bit. Start and stop elements are removed from the transmit data and added to the receive data. Both transmit and receive data are buffered. Flow control using XON/XOFF (DC1/DC3) or RTS/CTS is provided.

Fax Command Sets

Besides the AT commands supported by omni.net LCD, there are additional AT commands for internal fax/modem usage for a control speaker (ATMn and ATLn), data compression (AT&Kn), modem dial out (ATDMs), fax command sets (EIA Class 1 fax commands), etc.

The omni.net LCD+M internal modem supports Class 1 command set for the fax function. The Class 1 protocol uses the modem to transmit the fax data only. The connected computer handles the complete organizational overhead for this protocol. The available Class 1 commands are listed first in this chapter.

Command

 

Value

 

Description

 

 

+FCLASS=n

 

 

 

Service class selection

 

 

 

 

 

 

 

+FTS=n

 

0-255

 

Stops transmission and pauses, in 10ms units.

 

 

 

 

 

 

 

+FRS=n

 

0-255

 

Waits for silence, in 10ms units.

 

 

 

 

 

 

 

+FTM=<MOD>

 

 

 

Transmits data with a <MOD> carrier.

 

 

 

 

 

 

 

+FRM=<MOD>

 

 

 

Receives data with a <MOD> carrier.

 

 

 

 

 

 

 

+FTH=<MOD>

 

 

 

Transmits HDLC data with a <MOD> carrier.

 

 

 

 

 

 

 

+FRH=<MOD>

 

 

 

Receives HDLC data with a <MOD> carrier.

 

 

 

 

 

 

 

 

Table 60. Fax Command Sets A Command

Internal Fax/Modem AT Command Set Summary

ATDMs: Dials (number and options) that follows for the internal fax/modem

ATI1, ATI9: Displays information about product.

ATLn (n=0-3, default: 1): Speaker volume control, the higher the value, the higher the volume.

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