84
9 Modem/Com2 (Optional)
The DLX can be optionally equipped with an internal modem:
•
L834 (PSTN modem LGO 834) at housing for panel mounting only
•
MOD (PSTN modem UniMod) at 19”-rack and housing for panel mounting
•
ISDN (ISDN modem)
•
ETH (Ethernet connection)
Note: If the modem is replaced with another (optional) interface (e.g. RS232,
RS485, M-Bus, fiber-optic interface…) then a relevant text string
(modeminitstring) must be entered here, such as D9600, D4800, D2400…
9.1 PSTN Modem
The PSTN modem works according to CCITT recommendations and sup-
ports the following modes:
•
V.21 Full duplex, 300 Baud
•
V.22 Full duplex, 1200 Baud
•
V.22bis Full duplex, 1200 and 2400 Baud
•
V32 Full duplex: 4800, 7200 and 9600 Baud
•
V32bis Full duplex: 4800, 7200, 9600 and 14400 Baud
9.1.1 Default settings for the integrated modem
•
&F0 Load factory setting 0
•
S0=1 Respond after one ring
•
&D0 Ignore DTR
•
\N3 Auto-Reliable-Mode with error correction according to
V.42/MNP4 and data compression according to V.42bis/MNP5.
If you use an older modem without error correction at your PC, then it
is recommended to use the setting \N0 (normal mode, no error correc-
tion), as this will shorten the time required to establish a connection.
•
Q1 No feedback messages
•
&W0&W1 Save user settings in non-volatile memory
The modem will respond after the first detected ring (S0=1). The transmis-
sion speed between the modems will be adjusted automatically (\N3 or
\N0). These settings are stipulated in DLXPARA as the modem initialization
string and can be adjusted at any time.
For more detailed information please consult the manual shipped with the
modem.
To Next Page
Loading...