HRK3-HB-8
V
IA
L
ITE
HD
3U
CHASSIS
H
ANDBOOK
17
5.1.1
Specification
HPS-3
HPS-3-DC
Description
Wide input range AC power supply
Wide input range DC power supply
Dimensions, internal (W x H)
6HP * 3U
Dimensions, external (W x H x D)
188 x 129 x 30 mm
Weight
0.6kg
Input Supply Power
110V or 230V nominal at 50/60Hz
88 - 264V absolute range
20
– 72Vdc
Fuse
Internal, 4 A / 250 Vac
Internal, 10 A / 125 V
Efficiency
75%
84%
Switch on current
<20A @ 230Vac
<6.5A @ 20V input
Output voltage
12.0 +/ -0.5Vdc
Output ripple
50mV
Maximum input current
1.6A
6.5A
Maximum output power
100 W single PSU
180 W dual PSUs
Minimum load power
12 W
Inlet air temperature
-10 to +50
C
Derating >+50
C
1.5% /
C, absolute maximum 70
C
3% /
C, absolute maximum 70
C
Hot-swapping and Dual Redundant
Yes
Output overload
Built in overload protection switches output OFF and automatically restarts at 110% nominal current
Output over voltage protection
19Vdc
Status Indicators
Front panel
GREEN
power LED
Rear Panel alarm outputs
Power Good on
J1 “Alarm Concentrator” connector
12V = Normal operation; 0V = Alarm
MTBF @40
C
270 000 hours at 100% load
5.2
19” Chassis Power Requirements
The exact power requirements of modules are given in the module handbooks, however the details below maybe used to approximate the
power output requirements from the chassis mounted PSUs. The input power requirements can be calculated by using the power supply
efficiency given in section 5.1.1
Single Transmitter
2.0 W Typical per slot, excluding LNA/LNB power
Single DWDM Transmitter
3.2 W / 4.0W / 6.0 Typical per slot at 25/50/70°C
, laser types “D”, “E” and “K”, excluding LNA/LNB power
Single Receiver
1.5 W Typical per slot
Dual Transmitter
4.0 W Typical per slot, excluding LNA/LNB power
Dual Receiver
2.6 W Typical per slot
Transceiver
3.3 W Typical per slot, excluding LNA/LNB power
Amplifier
2.4W Typical per slot
Serial Digital
0.7W Typical per slot
Switch
0.4W Typical per slot
Splitter
0.4W Typical per slot
Ethernet
1.9W Typical per slot
SNMP controller
4.0 W Typical per slot
Alarm and Load
1 W Typical, plus 0/3/6/9/12 W load, per slot
Redundancy load module
1 W Typical, plus 0/3/6/9/12 W load, per slot
LNA/LNB feed
up to an additional 14.6 W per slot, if used (efficiency 89% typically and 80% minimum).
AC to DC efficiency
see section 5.1.1
DC to DC efficiency
see section 5.1.1
5.3
Redundancy load module, HRL
The redundancy load module ensures that when redundant power supplies are used, there is enough current for both power supplies to be
active. The module can provide a maximum load of 12 watts, this load can be switched in 3 watt steps. It can be fitted into a standard 5HP
slot.
The module can provide a maximum load of 12 watts, but this load can be switched in 3 watt steps
Load
0 / 3 / 6 / 9/ 12 watts switched
Control
via switch selection, using four DIP switches
Setting*
1 or 2 modules fitted all four switches ON
3 or 4 modules fitted three switches ON
5 or 6 modules fitted two switches ON
7 or 8 modules fitted one switch ON
9 or more modules fitted
* These calculations assume the lowest possible power consumption to meet the minimum load specification; a more accurate calculation
can be made by either using the modules datasheets or the estimates in section 5.2.
