SPS Specifications, Continued

SPS Current Consumption

•The bulk supply (rated at 9A max) which feeds 24V Sig, 24V Card, 24V Aux also supplies the SPS Card including the on board IDNet, and the battery charger. The charger is disabled during alarms so as to make the 9A available on the other busses. (See the following table for the SPS current).

•+24V Sig is used to supply the NACs. It can be made accessible for other use by configuring a NAC as an auxiliary power output (normally energized).

•The battery circuit is checked every 29 seconds. The battery test is programmed via custom control for a 1 hour test once per week.

•The battery is connected to the charger but is normally disconnected from the bulk supply. During mains fail or the 1 hour battery test, the battery gets connected to the bulk supply.

•The IDNet output is 30V in the normal condition so as to prolong battery standby. When it is necessary to activate large numbers of output devices on IDNet peripherals (such as piezo sounders), the output voltage is increased to 35V to provide sufficient voltage at the end of line to activate piezo sounders. The higher voltage state is an alarm condition for the purpose of standby battery calculation.

The following table summarizes battery standby capabilities for the SPS. Voltage assumed is 24 V, which is the rated battery voltage for lead-acid type batteries.

Table 4-2. SPS Current Specifications

 

 

Standby Conditions

 

 

Current

 

 

 

 

 

 

 

 

 

 

 

• No alarms (NACs normal)

 

 

175 mA

 

 

• IDNet LED ON, no IDNet devices connected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Add to above for each additional set of 50 IDNet devices in

 

 

40 mA

 

 

standby, with IDNet at 30 V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total current for fully loaded IDNet channel (250 devices) in

 

 

 

375 mA

 

 

 

 

standby

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Alarm Conditions

 

Current

 

 

•

3 NACs ON

 

185 mA

 

 

•

IDNet LED ON, no IDNet devices connected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Add to above for each set of 50 IDNet devices in alarm, 20

 

80 mA

 

 

LEDs ON

 

 

 

 

 

 

 

 

 

Add to above for each set of 50 IDNet devices in alarm, LEDs

 

50 mA

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total current for a fully loaded IDNet channel (250 devices) in

 

 

475 mA

 

 

 

 

alarm, 20 LEDs ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes:

•Additional standby conditions: Trouble relay activated, power trouble LED on, IDNet LED on, battery charger off, auxiliary power load = 0 mA

Continued on next page

4-3

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Tyco 4100U-S1 installation manual SPS Current Specifications Standby Conditions, Alarm Conditions Current
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4100U-S1 specifications

The Tyco 4100U-S1 is a sophisticated and robust fire alarm control panel known for its reliability and advanced features, catering primarily to commercial and industrial applications. This system represents the latest in fire safety technology, providing comprehensive protection for a wide range of environments.

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