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Bosch Security Systems | 2004-12 | Version 3
EN | 7LTC 0435 & LTC 0455 | Installation Manual
• Video-iris and DC-iris lenses are recommended for the best
picture performance.
• The camera automatically detects the type of lens used, and
optimizes performance accordingly.
• A spare male lens connector is provided if required.
Note:
If a short circuit is detected on the lens connector, the on-screen
display (OSD) failure message 'LENS SHORT CIRCUIT' is shown.
The lens circuit is automatically disabled to avoid internal damage.
Remove the lens connector and check the pin connections.
Back focus adjustment
• Camera accepts both C and CS-
mount lenses.
1. Unlock the back focus locking
button.
Pin Video iris lens DC iris lens
1 Supply (11 V, 50 mA max.) Damp-
2 Not used Damp+
3 Video signal 1 Vpp, 1 kΩ Drive+
4 Ground Drive-
CAUTION
• To avoid damaging the CCD sensor when using a C-
mount lens, turn the 'green' back-focus ring counter
clockwise until it stops ('Back focus adjustment')
before mounting the lens.
• Lenses weighing more than 0.5 kg (1.1lbs) must be
separately supported.