Operation Manual

Table Of Contents
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5.30 Technical note - Leased line SETUP (WESTERMO)
This description applies to Westermo TD-32AC / TD-32DC modems.
5.30.1 DIP switch settings.
5.30.2 Connecting the modem to the cabinet.
The modem must be connected to Remote Port 1
1
or Remote Port 2 on the connection inter-
face board in the ILS cabinet. The baud rate for this port must be 9600 bps (this is the default
setting). There is no need to configure any modem init strings in the NM7000 RMS.
5.30.3 Connecting the modem to the PC
The modem must be connected to COM1, 2, 3 or 4. The PC RMM modem connection type
should be set to
Leased line
. The modem init string should be:
AT\N5&D0&C1&L1&WD
(The hangup string is ignored in the DOS version)
SW1: 1234
ILS Modem 0 1 0 1 Leased line, switch off echo and result code. All AT
commands ignored, including +++
PC-Modem 1 000Dial mode, configured from PC-program
SW2: 12345678
ILS Modem 1 0010000Enable SW2:2 to 7. Asynchro-
nous. DTR/DSR disconnected.
PC-Modem 1 0000000Enable SW2:2 to 7. Asynchro-
nous. DTR/DSR not discon-
nected.
SW3: 12345678
ILS and PC 1 00000002-wire connection.
SW4: 12345678
ILS and PC 0 11011009600 bps. 8 data bits. No stop
bits.
SW5: 12345678
ILS-Modem 1 1110000V.32bis, 9600 bps
PC-Modem 1 1110000Auto detect line parameters.
1. It is recommended to use Remote Port 2 on the ILS, because this port has a 16 byte FIFO
that reduces the CPU load caused by the serial communication handling. If the modem must
be connected to Remote Port 1, a cable with RTS (pin 4) connected to DSR (pin 6) both in the
modem-end, must be used. Also, RTS must not be connected in the ILS-end.