KE LOGEM LGH 28.8D1, Operation Manual, Page: 153 / 200

153 Operation Manual V.34 - Modems, Version 07/97
Chapter 7
If the modem is equipped with the optional dial backup board it supports
only 2 wire leased line operation via the switched line interface.
Please refer to the appendix for further information concerning the
telephone access connectors and pin allocations.
During AT mode the leased line operation mode is selected using the
command AT&L(n).
7.2.2 2 Wire Leased Line
The standard version of the modems allows for modem operation at a 2
wire leased line using the switched line interface. In this case line switching
is performed using the TAE6N jack. The signal is connected to the pins 1
and 2. Such point to point connections allow for transmission ranges of
about 10 km dependent from the implemented cable and the line routing.
Example 1:
Two terminal equipments are to be connected via a leased line.The DTE
parameters are preset as follows:
data format: 8 data bits, no parity, 1 stopbit
speed: 38400 bit/s
data flow control: hardware handshake RTS/CTS
data protection: MNP 4
data compression: none
line switching: depends from S1 (DTR)
Applications