Panasonic KX-TDA600 Installation Manual page 298

2.14.1 Connection of Peripherals
An ON condition of circuit DR (DSR) indicates the printer or the PC is ready. Circuit DR (DSR) ON does
not indicate that communication has been established with the printer or the PC.
•
Request To Send (RTS):...(output)
This lead is held ON whenever DR (DSR) is ON.
•
Clear To Send (CTS):...(input)
An ON condition of circuit CS (CTS) indicates that the printer or the PC is ready to receive data from the
unit. The unit does not attempt to transfer data or receive data when circuit CS (CTS) is OFF.
•
Frame Ground (FG)
Connects to the unit frame and the earth ground conductor of the AC power cord.
PC/CTI Server (via USB version 2.0)
The PBX is equipped with a USB interface. This interface provides communication between the PBX and a
PC or a CTI server.
The PC is used for system programming, diagnostics and external system database storage (save/load)
functions.
The CTI server is used for connecting PCs on a LAN to provide third party call control CTI. The CTI connection
uses the CSTA Phase 3 or TAPI 2.1 protocol.
Note
The operating system of the PC or CTI server required for third party call control depends on your CTI
application software. For details, refer to the manual for your CTI application software.
CAUTION
To protect the system, keep the following in mind:
1.
Make sure that both connector cases (frame ground) of the USB cable are conductive. If they are not
conductive, make sure that both connector cases of the cable are firmly connected.
2.
If this is not possible, connect the frame of the PBX to the frame of the PC/CTI Server using an earthing
wire in order to prevent difference in the electrical potentials.
Pin Assignments
2
1
298 Installation Manual
No. Signal Name
1 VBUS
2 USB D-
3 USB D+
4 GND