Wiring The Contact/Tally Connectors - Extron electronics SW HD 4K PLUS Series User Manual

Wiring the CONTACT/TALLY Connectors

To enable input switching via contact closure, connect a push-button contact closure device
to a Contact connector (see
To identify the currently selected input when the front panel buttons are not visible, connect
a device such as an LED to the CONTACT/TALLY connector (see
to the +V connector (see
the corresponding Tally Out pin shorts to ground, activating the connected indicator.
The
connectors, each with two pairs of pins labeled C and T.
C T C T +V
2 2 3 3
Figure 7.
Each pin pair is labeled with the number of the HDMI input associated with it. (For example,
in figure 7,
these connectors as follows:
1.
2.
3.
4.
Using a Show Me cable:
The CONTACT/TALLY connectors can also be used with Extron
Show Me cables. The diagram at right shows how to wire a Show
Me cable to a contact input. For each Show Me cable:
•
•
figures 2 and
figures 2 and
panel contains one (SW2) or two (SW4) female captive screw
CONTACT/TALLY
1 1
CONTACT / TALLY REMOTE
1 2 3 4
RS‑232
C T C T
Tx Rx G
4 4
Contact/Tally and Remote RS‑232 Ports
, the number
1 1
SW2 models — Wire and connect the provided 5-pole plug to the 5-pole
CONTACT/TALLY captive screw connector on the rear panel.
SW4 models — Wire and connect the provided 5-pole plug to the CONTACT/TALLY
connector on the left (containing pin pairs 1 and 2), and wire and connect the provided
4-pole plug to the connector on the right (pin pairs 3 and 4).
Connect contact input and tally output devices to the pin pair for each input:
To enable input switching via contact closure, connect a push-button contact
•
closure input device to pin
3-pole RS-232 connector.
To identify the currently selected input when the front panel buttons are not visible,
•
connect an indicator device, such as an LED, to tally output pin
of pins ( ).
3
When the input you are using is selected, the corresponding tally out pin shorts to
ground, which activates the connected indicator.
Insert the power wires for the contact indicator devices into the
Press the button on the contact closure device to switch the connected input to the
output.
Connect the red pigtail to the
being used.
Connect the black pigtail to the
3, , on page 5).
G
3, ). When the input you are using is selected,
D
5 5
indicates the contact and tally pins for input 1.) Wire devices to
(see figure 7, ) and to the
C 2
pin corresponding to the input
C
pin of the same input.
T
SW HD 4K PLUS Series • Installation
figures 2 and 3, ) and
G
(ground) pin ( ) of the
G 5
of the same pair
T
connector ( ).
4
+V
CONTACT/TALLY
Connector
1 2
Black
C T C T +V
Red
Show Me
Cable
9