Video Multiplexer Sp16C; Description; Connexion - Videotec DCK Manuel D'instructions

5.11 Video mu ltiplexer SP16C

5.11.1 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 from the SM series
(SM42A, SM82A, SM84A, SM164A). This type of control is described in § 5.12 - Controlling the multiplexer
using a video device, page 31.

5.11.2 Connexion

5.11.2.1 Cable
The connection is of the RS485 type (one-way) and the maximum distance between keyboard and multiplexer is
1200 metres.
5.11.2.2 Multiplexer se ttings
The multiplexer can only be set up using the local multiplexer keyboard.
See the respective manual.
5.11.2.3 Keyboard set tings
While the keyboard is being set up, the
follows:




It is only possible to connect one keyboard to each SP16C, and therefore the identification number of the
keyboard is of no importance.
5.11.2.4 Operational t est
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
Each command sent by the keyboard corresponds to the lighting up of an LED on the local multiplexer
keyboard.
DCK RJjack 1
RS485A
RS485B

Control of a SP16C multiplexer
Four baud rate values are available.

, , to select the input videos.
RJjack 2
White Black
Yellow Yellow
Page 29
SP16C
RS485A
RS485B
submenu should be set as
MNVCDCK_0441