EverFocus EKR-KB1 operating instructions Video matrix Videotec SW164OSM, DB9

5.11 Video matrix Videotec SW164OSM

5.11.1 Description

Matrix SW164OSM is a product for professional use in applications for security and surveillance and dedicated to the management of video signals. It can be used to control 16 input videos; there are four video outputs, one of which can be managed directly by a VCR. It is used to control the usual switching and alarm management operations. Refer to the matrix manual for further information on this subject.

5.11.2 Connection

5.11.2.1 Cable

The connection between the matrix and the keyboard is made using an RS232 channel, which limits its length to about 15 metres. It is necessary to create a connection cable, which is inserted between DB9 on the back of the keyboard and one of the RJ11 connectors on the back of the matrix.

	L=15 m
DB9		RJjack
EKR-KB1	DB9	RJjack	SW164OSM
RX	2	yellow	TX
TX	3	white	RX
GND	5	red	GND

Alternatively, it is possible to use RS485-RS232 interfaces, which allow a maximum distance between keyboard and matrix of 1200 metres. In this case the connection diagram is as follows:

		RS485	RS232
		L=1200m
	RJjack1		INTERFACE	RJjack2
EKR-KB1	RJjack 1		Interface	RJjack2	SW164OSM
		IN	OUT
RS485A	White	A	RX	yellow	TX
			TX	white	RX
RS485B	Yellow	B	GND	red	GND

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