3170-avs.ib.rev5.doc
page 9 of 16
16/10/2007
Signal side:
Because the first switcher is not open circuit at its output, it may not be bridged to the second switcher to form a
10 x 1 matrix. To achieve this result a third switcher is required to switch between the two.
Another AVS-3170 may be used for this purpose or an AMS-3170 changeover switch may be used.
(See AMS-3170 manual for details.)
Control side:
The control signal for the third switcher may be obtained by wiring a discrete diode OR gate from the tally out
connector on the CPS-1050. (See CPS-1050 manual for details.)
LK 1 and LK 2 on the switchers are used to assign the group of inputs that a module will switch.
NOTE:
Always have one at least one switcher configured as
‘Inputs 1-5’
otherwise there will be no switch pulses
and consequently no switching action at all.
Connector PL 5 (data out) on switcher 1 - 5 connects to PL 4 (data in) on switcher 6 - 10 and so on.
Cables may be wired using the connectors provided or may be ordered from IRT using the following part numbers:
GDW-3010 150 mm cable for joining adjacent modules in 3 RU frame.
GDW-3011 300 mm cable for joining modules in 1 RU frames.
Link Settings:
Links LK 1 & LK 2:
These set the crosspoint range of the switcher or control panel as follows:
Inputs
LK 1
LK 2
1 - 5
6 - 10
IN
11 - 15
IN
16 - 20
IN
IN
Link LK 3:
Local / remote control selection. If the switchers on the front of this unit are to be active, then install
LK 3A, otherwise install LK 3B.
Link LK 4:
LK 4A: Always use incoming switch pulses.
LK 4B: Normal selection of switch pulses.