Panasonic KX-TD500 - External Modem Control

General Features
32 Features Guide
External Modem Control
Description
The system supports an external modem (Please refer to 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 Serial Interface (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 initialized with the
default values.
4. The following AT Commands settings 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) at (201)271-3346 for a list of recommended modems.
• Please refer to the modem instructions as the AT Commands depend on the
manufacturer of your model.
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PBX
RS-232C Port 1
To PBX extension
or CO line
Modem
Serial Interface (25-pin)
(RS-232C)