Handbook

Axell Wireless Limited
Technical Literature
WMATA CRCS Redundant Antenna System
General Overview
Document Number 60-228701HBK Issue No. 3 Date 28/05/2010 Page 58 of 114
4.10. PSU Housing Shelf 96-300090
This is a 1U, 19” Rack Mount shelf housing two, 960W, fan cooled, AC mains driven PSU modules (96-
300091) the outputs of which are combined to provide a 24V DC supply to the other chassis in the system.
The DC leads connected to the output terminals (annotated “B” and “C” in section 4.10.2.) are terminated
with right-angle XLR female connectors which mate with corresponding panel mounting male XLR
connectors on the front panels of those units which require a DC input.
4.10.1. PSU module 96-300091 Specification
Output
DC Voltage
24V
Rated Current
40A
Current Range
0 ~ 40A
Rated Power
960W
Ripple & Noise (max.)
200mVp-p
Voltage Adj. Range
23.2 ~ 24.8V
Voltage Tolerance
±1.0%
Line Regulation
±0.5%
Load Regulation
±0.5%
Setup, Rise Time
1000ms, 60ms/230V AC at full load
Hold Time (Typ.)
16ms/230V AC at full load
Input
Voltage Range
90 ~ 264V AC
127 ~ 370V DC
Frequency Range
47 ~ 63Hz
Efficiency (Typ.)
87%
AC Current (Typ.)
10.5A/115V AC
5.5A/230V AC
Inrush Current (Typ.)
Cold Start 50A
Leakage Current
<1.1mA / 230VAC
Protection
Over Load
105 ~ 125% rated output power
Protection type : Constant current limiting, recovers automatically
after fault condition is removed
Over Voltage
26.4 ~ 32.4V
Protection type : Shut down o/p voltage, re-power on to recover
Over Temperature
75 5°C ±C (TSW1) Detect on heatsink of power transistor
85 5°C ±5°C (TSW2) Detect on heatsink of power diode
Protection type : Shut down o/p voltage, recovers automatically
after temperature goes down