Electrical connections, Back focus adjustment – Philips LTC0500 User Manual
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Electrical Connections
7.1 AC MAINS POWER SUPPLY
Mains Voltage models:
LTC0500/50 CCIR
LTC0500/60 EIA
Power cable & inner conductors
Camera models /50 are fitted with 2 wire power cable with Euro plug.
•
Brown: Live, Reference line lock
•
Blue: Neutral
Camera models /60 are provided with 2 wire power cable with
polarized US plug.
•
Black: Live, Reference line lock
•
White: Neutral.
Voltage Range: rated 100-240 V AC.
Power dissipation: <8 W.
7.2 LOW VOLTAGE AC/DC INPUT TERMINAL
Low voltage models:
LTC0500/10 CCIR
LTC0500/20 EIA
Camera models -/10 & -/20 are equipped with screw terminals
Note:
Power supply input terminals are isolated from video
output terminals.
24 V AC Power Supply
Connect the 24 V AC wires to the camera- input terminal.
•
Pin 1: Live, Reference line lock
•
Pin 2: Neutral
Voltage Range: rated 12-28 V AC
Power dissipation: <8 W.
Start-up current: <1 A.
12 V DC Power Supply
Connect the 12 V DC wires to the camera- input terminal.
The supply connection is polarity independent.
Voltage range rated: 11 – 36 V DC
Power dissipation: <8 W.
Start-up current: <1 A.
24 V AC
12 V DC
1
2
-
+
~
+
-
~
Video
Sync
Balance
RS232
Video
Sync
Balance
RS232
1 2
Mains voltage models:
LTC0500/50 CCIR
LTC0500/60 EIA
Low voltage models:
LTC0500/10 CCIR
LTC0500/20 EIA
6
Back focus adjustment
The back focus screw is an ‘endless’ screw that turns the back focus ring.Turning the
screw in either direction will move the sensor chip back and forth from C mount position
to CS mount position.
A:
Back Focus (Fine adjustment)
B:
CS Mount, (Turn till focus)
C:
C Mount, (Turn till focus)
Instructions for back focus adjustment:
1. Set the lens distance to infinity.
2. Switch on the power supply to the camera, and switch on your monitor.
3. Aim the camera at an object which is over 15 meters away.
4. Adjust the back focus by turning the screw until the picture on the monitor is sharp.
Note:
This adjustment is most accurate with the iris fully open.
Mode
Digital Camera
LVL
BLC
Shut
LL
Phase
A
B
C
C - CS
LENS
Mount
24 V AC
12 V DC
1
2
-
+
~
+
-
~
Low Voltage connector
polarity independent
Ref Line lock