Motorola V.3600 manual Wire Leased Line Operation, Wire Dial-up Operation

AT Commands

Note

The V.3229, V.3227, V.3225, and V.3257 modems use V.33 as the modulation type. The V.3600 must be set up to V.33 to connect to these modems.

2-Wire Operation

In 2-wire operation, the modem is a full-duplex modem able to operate over 2-wire leased or PSTN lines.

2-Wire Leased Line Operation

The 2-wire leased line is connected to the TELSET/LEASED LINE jack; the DIAL jack connects to a 2-wire dial-up line for dial backup. The leased line connects the local and remote modems directly and dialing is not necessary. One of the modems must be configured for forced answer and the other for normal originate. When connected via leased line the modems will connect and begin communicating with each other.

The &L command is used to select private line (leased line) operating mode. The *OR commands select the origination or answer mode when operating in the leased line configuration.

Note

DTR must be held high in 2-wire or 4-wire leased line operation. This is accomplished by DTE control, wiring pin 20 of the digital interface cable high, or by selecting the option IGNORES DTR. If DTR is terminal controlled, loss of synchronization can be corrected by cycling DTR. This makes the modem initiate the 2-wire training sequence. DSR goes off during the training procedure.

2-Wire Dial-up Operation:

Connection to the telephone network is through the DIAL jack. A standard telephone can be connected to the TELSET/LEASED LINE jack for manual dialing.

5-34 V.3600