21 Safety Bus Manual — P/N LS10177-000HI-E:B 02/21/2019
System Components SB-SIM Module
3.2 SB-SIM Module
This module can control eight supervised inputs for conventional sensors or detectors with safety-
related functions. This can include automatic, manual, waterflow, and sprinkler supervision
devices. All the channels can be individually reset and are tested every 30 seconds during opera-
tion. It is used to control conventional fire detectors and NO/NC contacts in general.
3.2.1 Technical Specifications
3.2.2 Visual Indicators
The front panel of the module features 19 LEDs that indicate the following conditions:
NOTE: During the startup sequence, the yellow and red LEDs blink 3 times, then the seven red LEDs
L1-L7 will go on for 2 seconds to indicate the module address in binary format (L1=1, L2=2, L3=4,
L4=8, L5=16, L6=32, L7=64). At this point, the eight yellow LEDs L1-L8 will begin to blink rapidly until
the module is configured by the panel.
• Number of input channels:
8 individually configurable
• Wiring:
Class B Style C
• Alarm threshold:
2 programmable thresholds from 4 to 120mA
• Short-circuit threshold:
programmable from 4 to 131mA
• Open Circuit threshold:
1mA
• Channel test:
performed every 30 seconds
• Power supply voltage:
24VDC
• Current consumption in stand by:
115mA
• Operating temperature:
0 to 49 °C (32 to 120.2 °F)
• Storage temperature:
-55 to 85 °C (-67 to 185°F)
• Max humidity:
0-95% non condensing
• Protection rating:
IP30
• Mounting:
T35 DIN rail
• Dimensions:
53 x 167 x 100 (W x H x D mm) (2.1” x 6.6” x 4”)
• Weight:
approx. 600g (21 oz.)
• Connections:
2.5mm² removable terminal blocks
• Max. Line Impedance:
20 ft (6.096 m) in the same room, in conduit
• Max. Line Impedance Input Channels 1-8:
50 ohms
• Ground Fault Impedance:
</500 ohms
• Max distance between two modules:
20 ft (6.096 m) in conduit
Tag Color Mode Condition
RUN Green
On Solid Normal operation
Off Module failure or no power
LK1-Fault Yellow
Off Communication on Link LK1 present
Blinking Link LK1 towards board interrupted
On Solid Communication failure on Link LK1
LK2-Fault Yellow
Off Communication on Link LK2 present
Blinking Link LK2 towards board interrupted
On Solid Communication failure on Link LK2
L1-L8 Red
Off Channel in normal state
Blinking Channel in pre-alarm
On Solid Channel in alarm
L1-L8 Yellow
Off Channel in normal state
Blinking Channel fault (module or line)
On Solid Channel disabled
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