UTC Fire and Security Kidde AirSense SynaG Series Installation Manual page 23

Operating mode
NBN S 21-100
NEN 2535
Output termination
Output termination is required at all times, whether the output is used or not. The
type of termination depends on the output class, as shown in Table 14 below.
Table 14: Termination required for output classes
Output class
Class B (default)
Class A (EN 54-13)
See "Input and output specifications" on page 69 for details on voltage and
current ratings.
Output polarity
All outputs are polarity sensitive. Observe polarity or install a 1N4007 diode or
equivalent to avoid inverted activation issues.
Connecting sounders or other notification devices to supervised outputs
Depending on the operating mode, up to four sounder or notification device
circuits can be connected. See Table 12 on page 16.
Connecting fire routing equipment to supervised outputs
Connect fire routing equipment as shown in Table 15 below.
Table 15: Connecting fire routing equipment
Operating mode
EN 54-2
EN 54-2 Scandinavia
NEN 2535
Note: Fire routing in EN 54-2 operating modes makes no distinction between
automatic and manual alarms. If this feature is required, install a 2010-1-SB
expansion board and use separate outputs for each alarm type.
SynaG Series Installation Manual
OUT1/OUT2
Evacuation sounders
Sounders
Output termination
All outputs require a 15 kΩ end-of-line resistor for termination. If
an output is not used, the end-of-line resistor must be installed
across the unused output terminals (see Figure 4 on page 10).
All outputs require a 4.7 kΩ, 1/4W, 1% end-of-line resistor for
termination. If an output group (OUT1/2, OUT3/4) is not used, the
end-of-line resistor must be installed across the unused output
terminals (see Figure 5 on page 11).
Output Class
Class B (default)
Class A (EN 54-13)
Class B (default)
Class A (EN 54-13)
OUT3/OUT4
Warning sounders
Fire routing
Fire routing
(automatic)
OUT4
OUT3, OUT4
OUT3
OUT3, OUT4
Chapter 2: Installation
Fire routing (manual)
OUT4
OUT3, OUT4
OUT4
OUT3, OUT4
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