T470 Part A User’s Manual © Jed Micro Pty Ltd
Page 5
Function No / Name
Relay Function / Suggested Use
05: 1 Relay Close Down / Open
for Up
Uses one line which closes to drive screen down (and stop with a limit
switch) at Display-device On/Off key activation (or manually via a
“Screen” button). Relay stays on for entire time. Screen travels up when
relay opens, again stopping with limit switch. A “Screen” button can
raise or lower the screen at any time before or during the Display-device
on time.
Note 1: This option can also be used to control functions for
power, lighting, or audio, with automatic or manual actioning.
Note 2: Relay-3 has a voltage output of 5 volts when “On”, which is
compatible with screens needing a “trigger” signal.
09: 1 Pulse Down / 1 Pulse Up
(No automatic)
Drive screens (manually via a “Screen” button) of type which needs a 2-
second contact closure (on the first line to a common ground) to lower
the screen, and a contact closure (on a second line to ground) to raise
it. Assumes limit switches set travel. The “Screen” button can raise or
lower the screen at any time before or during the Display-device on
time.
0a: 1 Relay Close Down / Open
for Up (No automatic)
Uses one line which closes to drive screen down (and stop with a limit
switch) manually via a “Screen” button. Relay stays on for entire time.
Screen travels up when relay opens, again stopping with limit switch.
The “Screen” button can raise or lower the screen at any time before or
during the Display-device on time.
21: On with On press/Off at
end of Cool-down
This is designed to drive a dipper which drops on relay closure and
withdraws on relay open. This allows full cool-down while projector is
descended. Can also be used for system power control (but not
display).
22: On with On Press (5
second display delay / Off at
end of Cool-down
This is designed to control power to the actual display device. Power is
switched on by the relay activation, and then 5 seconds later the ON
command is sent to the display device. The relay deactivates at the end
of cool-down.
23: On with On press/Off with
Off button
This is designed to drive a dipper which can withdraw while projector
cools.
24: On at End Warm-up/Off
with Off button
Relay controls room lighting.
25: On at End Warm-up
(Undim on Blank On)/ Off with
Off Button
Relay controls room lighting, with room lighting returning to normal
when the display is blanked.
30: Momentary Mode, Key A
Relay operates only when key is down, releases when key released.
LED illuminates when key pressed. Can control external devices with
momentary-contact switch input, e.g. a switcher, VC system, etc.
31: Momentary Mode, Key B
32: Momentary Mode, Key C
33: Momentary Mode, Key D
34: Run Toggle Mode Key A
Run Toggle mode (Push On/Push Off) Relay operates only when LED
is lit. Only operates in Run mode. Can be used for a variety of control
tasks.
35: Run Toggle Mode Key B
36: Run Toggle Mode Key C
37: Run Toggle Mode Key D
38: Anytime Toggle Mode key
A
Anytime Toggle mode (Push On/Push Off) Relay operates only when
LED is lit. Operates anytime. Can be used for a variety of control tasks.
39: Anytime Toggle Mode key
B
3a: Anytime Toggle Mode key
C
