Operating instructions

Extron • System 8/10 PLUS • User’s Manual
Multiple Switcher Operation
5-5
Star Configuration
Star Connection
In a Star configuration, the output of each slave supplies an input to the master
switcher. There is no slave #0 in a Star configuration. For example, slave #1 is
connected to input #1 of the master switcher; slave #2 is connected to master
input #2, etc. The output of the Master is connected to the projector or display
monitor. The maximum number of inputs available in a Star configuration is 100
when using all System 10 switchers (80 when using all System 8 switchers). The
Star connection scheme is somewhat more complicated to configure, but
provides maximum video bandwidth since the video signal is only routed through
two switchers. Another benefit of the Star configuration is the simple connection
of composite-to-RGB converters and scan doublers.
Looping Instructions
See illustration on the facing page as you do the following:
1. Remove power from all switchers and decide which will become the Master Unit
and which the Slave.
2. Disconnect all communications devices from the Master Unit.
_____ The Slave Unit should never have any communications devices connected,
except a contact closure remote control (if required).
3. On the Master Unit, locate the DIP switches labeled “Address” in the lower right
corner of the rear panel. Set switch #5 up, and #1, #2, #3 and #4 down. (Switch
#4 must be set to the "down" position until Step 9.)
4. On the first Slave Unit, locate the Address DIP switches and set switches #1, 2
and 3 up, and switches #4 and #5 down (for Slave Mode, Slave #1).
5. Connect an RJ11 cable from the “System Intercom Out” connector of the Master
to the “System Intercom In” connector of the Slave #0. If more slave units are
being connected, connect another RJ11 cable from Slave #0 “System Intercom
Out” to Slave #1 “System Intercom In”. Repeat this for each slave unit for the
remaining system loop.
6. Connect the video output of Slave #1 to video input #1 of the Master Unit.
Connect the output of Slave #2 to video input #2 of the Master Unit and so on
until all slaves are connected (10 maximum for System 10; 8 maximum for
System 8).
_____ If there are any inputs left over on the Master Switcher, their numbering will
resume after the last input of the highest numbered slave switcher.
7. Connect any communication devices (e.g., projector control cable, remote
control, etc.) to the Master Unit.
8. Connect the video outputs from the Master Unit to the video inputs of the
projector. Refer to Chapter 3 for details.
9. To save the configuration first turn the Slave On and then turn the Master On
_______ Wait at least 10 seconds for the Master Unit to save the configuration to memory.
10. On the Master Unit, set Address switch #4 to Normal or “Up” position.
11. Make any necessary connections and return all switchers to normal operation.
Address
(#0)