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1.3 System Features
External Modem Control
Description
The system supports an external modem (see Notes) plugged into the RS-232C Port 1. The
system communicates with the remote terminal at data rate of up to 19,200 bps and enables
remote system maintenance through an external modem. A pre-assigned AT Command (see
Notes) can be sent to an external modem automatically when it is plugged into the RS-232C
Port 1. The extension user is also allowed to control the external modem by sending the pre-
assigned AT Commands.
Conditions
• To connect an external modem to your system, perform the following procedures:
1.
Connect the modem to the system with the EIA (RS-232C) cable.
2.
Connect the modem to an extension port which is assigned as the DIL 1:1 destination. Or
connect the CO line directly to the modem.
3.
Set the power switch of the modem to "ON," then the modem will be initialised with the
default values.
4.
The following AT Command programming may be required for the modem.
• The Data Terminal Ready (DTR) signal should be ignored.
• The Data Terminal Equipment (DTE) / Modem flow control should be turned off.
• The data compression should be disabled.
• Error Correction is not necessary.
Notes
• Not all modems will be compatible. Please contact the Panasonic Bulletin Board
System (BBS).
• Please refer to the modem instructions as the AT Commands depend on the
manufacturer of your model.
To PBX extension
or CO line
• The connection chart for the external modem (25-pin) is as follows:
32
RS-232C Port 1
Modem
Serial Interface (25-pin)
(RS-232C)
M
AL
AR
E
F LIN
N
OF
RU
ST
EM
ID
SY
R HY
BR
PE
L SU
ITA
DIG
PBX
Features Guide
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