Visonic Inc. DUO220EAM Manual De Usuario

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Increasing the vertical angle at a certain height will increase 
the coverage range. 
 
• 
Do not install the DUO 220 in places where one of the two 
detector circuits alarms constantly or intermittently, due to 
environmental interference. 
• 
Special advice to DUO 220AM users: It is desirable to mount 
the unit in locations where inadvertent approach to less than  
1 m (3 ft) from the detector is unlikely to occur.  
3.2 Direct Mounting 
The unit can be installed directly on the wall or in a corner using 
the mounting knockouts. Optional swivel brackets permit greater 
flexibility when adjusting the coverage area (see Para. 3.3).  
A.
  Loosen and remove the screw at the bottom of the case  
(Fig. 1) and then take the cover off. 
B. Punch out the appropriate mounting and wiring knockouts in 
the base. 
 Note: For wall surface mounting, use the two elongated 
knockouts at the middle of the base. For corner mounting, use 
two diagonally opposite knockouts at the angled sides of the 
base (Fig. 3).
 
Figure 4. Optional Swivel Brackets 
 
3.4 Wiring 
Connect wires to the terminal block in the following order (Fig. 5): 
 
Figure 5. Terminal Block Wiring 
 
Terminal:
 TAMP (tamper switch) 
Connect to: A normally closed 24-hour tamper zone of the 
control panel.  
Figure 3. Printed Circuit Board Layout 
Details: When the cover is removed, the tamper switch opens. 
C. Select the mounting location in accordance with the 
guidelines in Para. 3.1. 
Terminal: NC  (alarm relay) 
Connect to: Normally closed burglar protection zones of the 
control panel.  
D. Temporarily remove the PC board from the base. Take care 
not to lose the fastening screw. 
Details: Upon alarm or power failure, the output relay’s normally 
closed contacts open. 
E.  Use the base as a template for marking the drilling points. 
F. Drill the mounting holes and insert masonry anchors if 
required. 
Terminal: TRB (trouble output) 
Connect to: 24-hour trouble zone, parallel to an E.O.L. resistor 
(see Figure 5). 
G. Pass the wires through the punched-out wiring inlet(s) and 
mount the base in place using two screws. 
Details:  The TRB open collector output will be grounded upon 
detector malfunction or upon masking (DUO 220AM), causing 
disturbance in the trouble zone of the associated alarm system.  
H.  Seal all openings in the base with RTV to prevent insects from 
entering the unit. 
I.  Remount the PC board and secure it with its vertical 
adjustment screw. 
Alternative: a buzzer or an interface relay may be connected 
across the TRB output and the 12 VDC (+) terminals. 
3.3 Optional Swivel Brackets 
Terminals: 12 V  (+)  and (–) 
 
Connect to: A power source within the range of 9 to 16 VDC. 
Take care not to reverse the polarity.   
The BR-1 is a general purpose swivel bracket used for vertical 
and horizontal positioning of the DUO 220. With the BR-1, the 
unit can be tilted down from 0° to -30° and swiveled 45° left or 
right (see Fig. 4). 
Details: It is advisable to connect the power source only after all 
other connections have been completed and rechecked. Discon-
nect the AC mains from the alarm control panel and verify that 
the voltage supplied to the detector is above 9 Volts with the 
backup battery as the only power source. 
The BR-2 is a swivel bracket kit for room corner installations. It 
consists of the BR-1 and a corner adapter.  
The BR-3 is a swivel bracket kit for ceiling installations. It consists 
of the BR-1 and a ceiling mounting adapter. 
IMPORTANT: To comply with CE safety requirements, connect to 
CE-approved control panels with current-limited DC output. 
 
Caution! When a swivel bracket is used, the effective detection 
range may differ from that indicated in Table 3 (Para. 5.1).
 
Note: Use RTV to seal the base opening(s) to prevent insects 
from entering the detector.
 
DE1823