6
The table below summarizes battery standby capabilities for the SPS. Voltage assumed is 24 V,
which is the rated battery voltage for lead-acid type batteries.
Table 2. SPS Current Specifications
Standby Conditions Current
No alarms (NACs normal)
IDNet LED ON, no IDNet devices connected
175 mA
Add to above for each additional set of 50 IDNet devices in standby,
with IDNet at 30 V
40 mA
Total current for fully loaded IDNet channel (250 devices) in standby 375 mA
Alarm Conditions Current
3 NACs ON
IDNet LED ON, no IDNet devices connected
185 mA
Add to above for each set of 50 IDNet devices in alarm, 20 LEDs ON 80 mA
Add to above for each set of 50 IDNet devices in alarm, LEDs OFF 50 mA
Total current for a fully loaded IDNet channel (250 devices) in alarm,
20 LEDs ON
475 mA
Notes:
Additional standby conditions: Trouble relay activated, power trouble LED ON, IDNet
LED ON, battery charger OFF, auxiliary power load = 0 mA
Additional alarm conditions: Trouble relay activated, power trouble LED ON, IDNet
LED ON, battery charger OFF, auxiliary power load = 0 mA, NAC alarm load = 0 mA,
IDNet = 35 V
The table below summarizes battery standby capabilities for the RPS. Voltage assumed is 24 V,
which is the rated battery voltage for lead-acid type batteries.
Note: The ratings given below do not include notification appliance or auxiliary power loads. Add
the alarm load for each NAC and any auxiliary power loads to the RPS board rating shown
in the table.
Table 3. RPS Current Specifications
Conditions Current
Standby; no alarms (NACs normal) 150 mA
Alarm; 3 NACs ON 185 mA
The modules are rated to operate at ambient temperatures between
0 C (32 F) and 49 C (120 F).
The modules are rated for operation at 90 F (32 C), 93% non-condensing relative humidity.
Introduction to the SPS and RPS,
Continued
SPS Current
Consumption
RPS Current
Consumption
Environmental
Operating Range
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