Samsung DX-408, Installation Manual

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3-8
Chapter 3
Additional Equipment Connection
CTM-CTI Module
This feature is applicable to the DX-408i digital key system only.
The CTM module is required to support CTI Computer Telephony Integration (1
st
Party TAPI)
in the system. The CTM has a PC interface (DB9) and a DLI connection, which can be
connected to any DLI port of the DX-408i digital key system.
A PC can be connected to the module via the DB9 (9 pin serial) connector. Connect the CTM
module to a PC and a DX keyset as below.
1 Connect each CTM module to a DLI port via the modular jack marked 'DLI IN'.
2 Connect the CTM module to a DX keyset via the modular jack marked 'KTS OUT'.
A CTI software package , Samsung Smart Control, is supplied with each CTM.
The CTM module should not be used outdoors.
The pin connections from the CTM to the PC are as follows.
CTM PC
COM1
COM2
9PIN 25PIN
TXD(2) --------------------------------------- RXD(2) RXD(3)
RXD(3) --------------------------------------- TXD(3) TXD(2)
GND(5) --------------------------------------- GND(5) GND(7)