Technical Manual

D C U M a i n t e n a n c e a n d O p e r a t i o n M a n u a l 1
CHAPTER
1
P RODUCT S PECIFICATIONS
The following table summarizes the specifications of Aclara’s DCU .
Input power for AC-powered units 120 VAC, single phase, 60 Hz, 1 A (maximum amperage)
Input power for DC-powered units 12-28VDC, 7 A (max)
AC powered DCU 2/2+ average
power consumption
AC DCU 2 - 72 kWh/year
AC DCU 2+ - 88 kWh/year
Timekeeping source GPS
450 MHz band antenna port
output power
+33 dBm (2W) (conducted)
Maximum 450 MHz band
transmitter duty cycle
10% @ 25°C ambient
450 MHz band receiver sensitivity The system shall provide a receive sensitivity (measured at
antenna port) of less than -114 dBm to support a 10
-5
BER
Frequency band 450 - 470 MHz
Note: The DCU is configurable to operate in numerous specific 12.5 kHz channels within the
450-470 MHz band.
Transmission rate 4800 BAUD - provides 4800 bps when operated with
2GFSK modulation and 9600 bps with 4GFSK modulation
Antenna impedance 50 Ohm
Antenna gain Long-range antenna (Laird) gain is 7.15 dBi; standard-range
antenna (EM Wave) gain is 5 dBi
Altitude Tested per MIL_STD-810G to an altitude of 7000ft.
Operating temperature range -40° to +85°C
Earthquake immunity GR-63-CORE Seismic test - Zone 4
Power outage ride-through
capability
3 days @ 25°C when batteries are fully charged
Weight of DCU chassis without
battery
34 pounds
Weight of battery 38 pounds
IEEE1613 compliance UL 60950-1; Safety Class 1
UL 61000-4-3
UL 61000-4-6, Class 1 Recovery (RF susceptibility)
Ethernet Connectivity RJ45 connection
10/100 Mbps speed
Fiber Connectivity Single mode
1300/1310nm wavelength
SC with UPC polish connection
100 Mbps speed