Pelco C2900M-B(1/03 manual Use As Transparent Data Port, Data Port Pin Assignments In RS-232 Mode

Use As Transparent Data Port

The serial interface offers a transparent serial data channel between the receiver and the transmitter. A typical application for transparent data is remote control of peripheral equipment (for example, a dome system with PTZ functions). You also can use this channel to control remotely any external device with a serial interface. The serial data is transferred in parallel to the video and audio data.

Transmission of transparent data is enabled only after a video connection has been established. Also, the RS-232 interface for the transparent data port does not support hardware flow control.

For proper operation, you must configure the following in a way that they fit the associated unit: baud rate, parity of the interface of the PelcoNet NET104A Transmission System unit, and number of data and stop bits. Use a web browser to configure these parameters at the unit with the configuration side.

The transparent data interface is used to control PTZ cameras remotely, to transmit data transpar- ently between two units, or to control equipment connected to a PC COM port. Transmission of transparent data is possible only when the units are connected. Only the data transmitting signals are provided at this port.

					Pin	Name	Direction	Description
VIEWED FROM SOLDERING					1	–		N.C.
					2	RXD	Input	Receive Data
SIDE OF PLUG
					3	TXD	Output	Transmit Data
1	2	3	4	5
					4	–		N.C.
					5	GND		Ground
					6	–		N.C.
6	7	8		9	7	–		N.C.
					8	–		N.C.
					9	–		N.C.

Figure 20. Data Port Pin Assignments In RS-232 Mode

32 C2900M-B (1/03)