EverFocus EKR-KB1 operating instructions Video multiplexer Videotec SP16C

5.14 Video multiplexer Videotec SP16C

5.14.1 Description

The SP16C allows the connection of 16 input videos, which are digitalized and shown as a composite image at output. A spot service monitor supplies the display of one of the inputs.

Communication from keyboard to multiplexer is one-way.

It is also possible to control the multiplexer indirectly, using a new generation video matrix (EKR-8/4, EKR-16/4). This type of control is described in § 5.15 - Controlling the multiplexer using a video device, page 48.

5.14.2 Connexion

5.14.2.1 Cable

	L=1200 m
RJjack1		RJjack2
EKR-KB1	RJjack 1	RJjack 2	SP16C
RS485A	White	Black	RS485A
RS485B	Yellow	Yellow	RS485B

The connection is of the RS485 type (one-way) and the maximum distance between keyboard and multiplexer is 1200 metres.

5.14.2.2 Multiplexer settings

The multiplexer can only be set up using the local multiplexer keyboard.

Set the right baud rate and the multiplexer identification number.

See the respective manual.

5.14.2.3 Keyboard settings

While the keyboard is being set up, the submenu should be set as follows:









5.14.2.4 Operational test

Control of a SP16C multiplexer Four baud rate values are available.

If the keyboard is connected directly with the multiplexer set up in this way using the cable as indicated above, it should be possible to switch the input videos immediately:

•press to select multiplexer unit 1

•press , , to select the input videos.

Each command sent by the keyboard corresponds to the lighting up of an LED on the local multiplexer keyboard.

Warning! If the number of the multiplexer unit does not coincide with the commands sent from the keyboard, they will be ignored.

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