Installation manual

Page 7
Installation Manual Pyramid AC Receiver
PCB POWER CONNECTIONS
CON1 is used for PCB power connection. This power controls the switching of the relays, the video gain and lift and the
lens functions. The AC power for the Pan/Tilt head and auxiliaries is connected separately to CON5.
The PCB requires a +12V DC, 1A class 2 power supply. The necessary connections have already been made on the
boxed variants, including a grounding wire which is connected from the negative terminal of CON1 to the external terminal
block (Figure 3). On PCB versions, connect the 12V DC as shown in Figure 3.
G
R
O
U
N
D
I
N
G
W
I
R
E
NEUTRAL
LIVE
G
R
O
U
N
D
I
N
G
W
I
R
E
+
-
+
-
+
FUSED
SIDE
NON-
FUSED
SIDE
-
Figure 3 - PCB Power Connections
CONNECTING THE PRESET FEEDBACK POTENTIOMETERS
If you are using a preset Pan/Tilt head and lens, then CON2 provides the supplies and feedback connections for the
potentiometer wiper circuits. The direction of the feedback is automatically calculated when the test routine is invoked
(see Testing on page 18), this means it is not necessary to wire the pots in a specific direction.
Referring to Figure 4, connect CON2 to the preset pots on the Pan/Tilt head and the lens. Connect any unused feedback
inputs to ground. Make a note on your module description sheet of the preset connections and the type of lens.
CON2
TEST
BUTTON
10A
FUSE
5
V
+
T
I
L
T
F
B
P
A
N
F
B
F
O
C
U
S
F
B
Z
O
O
M
F
B
G
N
D
Figure 4 - CON2 Connections
CAUTION
The maximum power that can be drawn from the +5V supply on CON2 is 30mA. DO NOT use this supply for any
purpose other than for supplying feedback pots.