ERL aco COMO PRO Installation And User Manual Download Page 3

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Panel Installation

•  The surface mounting cover protects the system from adverse 

weather conditions especially water 

•  Setting the cameras height around 1.6m from the ground is 

a good starting point, however in order to obtain the optimal 
view experimenting with height and location is recommended 

•  Avoid locations where the camera lens is exposed to direct, 

perpendicular, light rays from sunlight, street lights and other 
light sources

•  In order to get the best tightness it is recommended to cut out 

only the holes that are necessary to mount the panel.  There is 
a thin foam gasket on the front surface of the 

fl

 ush mounted 

box.  Pay attention when screwing the panel front so that it 
adheres to the gasket evenly and with its entire surface

Master and Secondary Panel Assembly

Connecting two panels is possible in a Master and Secondary setup 
Jumper positions should be set on each panel main board:

•  Master Panel: J1 Jumper = Open (Master)
•  Secondary Panel: J1 Jumper = Closed (Secondary

In a Single panels installation the J1 Jumper should be set to Master:

•  Secondary Audio panels can be connected directly to the +DC 

Power and - DC Power GND and Line terminals

•  Secondary video panels should be connected using the VIDEO-

SW2 MINI-60 camera switch

NOTES: 

•  The master panel always has priority of all functions, opening 

doors, activate a call, standby mode

•  The panel that initialises the call will automatically connect to 

the caller.  The receiver will only be able to unlock the door that 
the calling panel operates

•  If a second call is attempted from another panel while the 

fi

 rst 

panel is in use, the caller will hear an engaged  tone

Panel Volume Settings 

The panel default volume settings are set at the factory but can be 
easily changed using the dials situated on the panel main board.

•  

MIC adjusts the sensitivity of the panel microphone

•  

SPK adjusts the panel volume

•  

BEEP adjusts the panel beeps

HOLE 1

Flush mounting box main wire feed

HOLE 2

Additional module slot - break o

  to use

HOLE 3

For mounting in a steel column or similar structure 
Maximum wall thickness 32 mm - additional set of 
gaskets and screws should be used

HOLE 4

Auxiliary holes are for temporary mounting, e.g. 
using nails in a soft material such as Styrofoam

HOLE 5

Panel mounting holes for 

fl

 ush 

fi

 tting.  Appropriate 

screws, wall plugs and gypsum should be used

HOLE 6

Surface box mounting holes. Screw housing bolts 
evenly into the assembly box using a 3 mm Allen 
key

HOLE 7

Surface mounting box cable entry slot

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