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MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111
Issue 1
February 1998
Programming with SPM
Page 2-15Connecting the PC
2
Local Modem Connection 2
For a local modem connection, you must use a modem (either connected to, or
built into, the PC) to access the internal modem in the control unit. Connect the
modem to an 012 or 016 module in the control unit, as shown in Figure 2–3
.
The internal modem operates at speeds of 1,200 and 2,400 bps.
Figure 2–3. Local Modem Connection
Remote Modem Connection 2
For a remote modem connection, you must use a modem (either connected to, or
built into, the PC) to access the internal modem in the control unit. You must also
use a dial-up connection, as shown in Figure 2–4
. See “Accessing SPM” on page
2–16 for details on accessing SPM with a remote modem connection.
The internal modem operates at speeds of 1,200 and 2,400 bps.
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8 M
LX (Digital) Telep
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1
2
PROCESSOR
RS-232
012
Port
Serial
Communications
Port
MODEM