Bosch EX49N Installation Instructions Manual page 21

PTT Bracket
VRB
Adjustment
Knobs (2)
Tilt Adjustment
Loosen the two adjustment knobs on the PTT
bracket and tilt the lens to the desired viewing
angle. The adjustment knobs are also used to
position the lens for proximity to the dome. See
Figure 4-3 on page 16 for lens rotational
adjustment.
FIGURE 4 – 2
Directional Adjustment, Tilt and Vertical
PTT Locking Knob
Camera/LED Array
Module
15
Optional
Camera
Heater
Board
Vertical
Adjustment