14
© 2006 PANORAMAdtv ALL rights reserved
RM-2440
User Manual P/N
821574
Rev-
C
Section 3: Technical Information
Tally Control Connector Wiring
A front panel tally LED is associated with each LCD monitor. Interface is provided to the LEDs via the
Tally Control
Connector
on the rear panel (
Item E
, page
10
). Tri-color (RED, GREEN, and YELLOW) tally indications are possible by
activating the red and green LED sections simultaneously. For connection details, see
Figure-3a
below .
Figure 3-b
, on the facing page, shows sample tally connection configurations. You can operate the Tally LEDs by three
methods. The three tutorial examples showing
Dry Closure
(internal power),
Positive True Logic Drive
(external power),
and
Open Collector
(transistors as switches) are illustrated to show basic operation.
The Tally indicators are capable of displaying three colors. Illuminating the RED or GREEN LEDs separately will result in that tally
color. Illuminate the RED and GREEN LEDs simultaneously to achieve a YELLOW tally.
Isolated
Operating the Tally LEDs in an
isolated
configuration (
Figure-3b: Dry Closure
) requires an external (customer provided)
power supply and tally system. If your facility currently has a tally system with companion power source, use this method to
integrate the RM Monitor tallies with your existing tally matrix.
NOTE:
Ensure the LED power supply pr5 to +12VDC.
Non-Isolated
Operating the Tally LEDs in the
non-isolated
configuration (
Figure-3b: Positive True Logic Drive
) uses the
RM
Monitor
internal power supply to provide the tally LED voltage. Connect your tally closures as shown in
Figure-3b
to the
respective
RM Monitor
tally connections.
Audio Indication Module Option
An optional audio indication module (
AIM-1
) is available to enable the use of the tally LEDs to indicate audio presence and loss.
The
AIM-1
module installs onto the
RM
rear panel tally connector and then receives the audio input from a seperate cable. Contact
PANORAMAdtv for more information concerning this option.
Figure-3a:
RM Monitor Tally Control Connector Pin Function
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
DB25 FEM
PC R/A FEM
1
2
390
1/4W 5%
+12V
TALLY CONTROL
TR1
TR2
TR3
TR4
TG1
TG2
TG3
TG4
TC1
TC2
TC3
TC4
1
2
220
1
2
150
3
4
220
3
4
150
5
6
220
5
6
150
7
8
220
7
8
150
1
2
390
1/4W 5%
1
2
390
1/4W 5%
1
2
390
1/4W 5%
1
2
390
1/4W 5%
S
TRn
TGn
TCn
FRONT PANEL LED
ONE PER MONITOR
CIRCUIT IN MON4-3
GREEN
RED
