D-Link KX-TDA100 User Manual download pdf (Page 216)

3.2 Connection

216 Installation Manual

External Modem Connection

After connecting the Hybrid IP-PBX and the external modem, set the power switch of the external modem

to "ON", then the external modem will be initialised with the default values.

The following AT command 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

• Use an RS-232C straight cable for connection between the Hybrid IP-PBX and external modem.

• An AT command (for initialisation, enabling automatic answer, etc.) can only be programmed by

KX-TDA Maintenance Console. "AT&F0Q0E0V1S0=1X0&D0" is stored as the default value.

• For more information about the AT command, refer to the external modem's instructions.

To RS-232C port (25-pin)

RS-232C Port

(9-pin)

To trunk/Hybrid IP-PBX extension

port assigned as the trunk destination

Modem

External Modem Hybrid IP-PBX

Signal Name Pin No. Signal Name

SD (TXD) 2

RD (RXD) 3

DR (DSR) 6

ER (DTR) 20

2 RD (RXD)

3 SD (TXD)

4 ER (DTR)

6 DR (DSR)

Pin No.

1 2 ... 211 212 213 214 215 216 217 218 219 220 221 ... 249 250

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D-Link KX-TDA100 User Manual Page 216