Panasonic WJ-SX550A Operating Instructions Manual page 10

Activation of crosspoint switches
Timer
Controller
In Matrix Switchers the activation (or closure) of a crosspoint switch is performed by a microprocessor. This microprocessor may
get its commands from one of three sources.
1) From a controller manually operated
2) From an external alarm signal
3) From an internal timer (clock)
Upon receiving a command signal the microprocessor retrieves the sequence pattern, previously stored in memory, and activates
the crosspoint switches in the proper order.
For example:
• Alarm 3 input
• 7th January, 10:00AM e
Matrix Switcher
Sequence Pattern
Memory
s
Micro-processor
e
Camera 3 picture output to Monitor 1
sequence of Camera 1
Crosspoint Switch
SW11
SW12
SW13
SW14
SW15
SW16
SW17
s
SW18
Alarm
Camera 2 Camera 3
-7-
SW21 SW31 SW41
SW22 SW32 SW42
SW23 SW33 SW43
SW24 SW34 SW44
SW25 SW35 SW45
SW26 SW36 SW46
SW27 SW37 SW47
SW28 SW38 SW48
output to Monitor 2
1