Allen&Heath GL4000 SERVICE MANUAL - Manual (Page 98)

ALLEN & HEATH Section D - 2 L4DSM2
TECHNICAL DESCRIPTION
The ALLEN & HEATH RPS11 power supply is purpose designed for the GL4000 range of sound reinforcement
consoles.
CONSTRUCTION
All metal chassis for rack mounting in a 19" by 3U space. The unit comprises of a 16swg steel front panel with integral
top cover and a separate 16swg steel chassis base on which all the main components are mounted.
INSTALLATION
The RPS11 is designed to occupy 3U (5.25 inches) of rack space. An important consideration when rack mounting the
unit is the need for natural convection of air flow over the whole unit. Good ventilation below the unit, in the floor or
back of the rack, will ensure a path for continuous air flow. Other equipment in the rack which is known not to produce
a significant amount of heat should be mounted below the unit. Equipment which also relies on good air flow within
the rack (i.e. most power amplifiers and other power supplies) should be given due consideration and some space should
be provided between such units and between the RPS11 unit. Forced convection, by means of a fan-tray, may be
desirable in this situation.
The RPS11 can be operated as a free standing unit without requiring any special cooling arrangement, but should not
be covered in any way. Always stand the unit on a firm flat surface well away from any soft furnishings.
THE POWER SUPPLY AND CONSOLE EARTHING
The RPS11 is a linear power supply which, like other linear supplies, produces DC voltages by rectifying, smoothing
and regulating AC voltages from the secondary windings of a mains transformer. This unit connects to the local AC mains
supply and provides the regulated DC operating voltages required by the GL4000 console. The RPS11 DC output lead
is terminated at both ends with an inline 10 pin round connector. A male connector at one end and a female connector
which plugs into the console DC INPUT at the other. Near to the console DC INPUT connector is an earth terminal
labelled CHASSIS GROUND. This terminal is connected to mains earth via the DC power cable of the RPS11.
THE CHASSIS METALWORK IS ALWAYS CONNECTED TO MAINS EARTH VIA THE EARTH WIRE IN
THE MAINS PLUG. DO NOT REMOVE THE EARTH WIRE CONNECTION IN THE MAINS PLUG !
SPECIFICATION
AC MAINS INPUT VOLTAGE RANGES: 100V - 120V, 220V - 240V @ 47Hz to 63Hz single phase
POWER CONSUMPTION: 320VA 300W
DC OUTPUTS: +16V @ 5A, -16V @ 5A, +48V @ 200mA
OUTPUT NOISE & RIPPLE: < 1mV (peak to peak)
DC Output Socket Pin Connections
Pin 1 = +16 Volts
Pin 3 = -16 Volts
Pin 4 = CHASSIS 0V
Pin 5 = AUDIO 0V
Pin 10 = +48 Volts
Pins 2, 6, 7, 8, 9, = not connected
Overall Dimensions
Front Panel Chassis (Maximum External)
19 inch 3U (482mm x 133mm) Height: 135mm including feet (5.31 inches)
Width: 419mm (16.50 inches)
Depth: 235mm (9.25 inches)
Weight : 9.5Kg (21 pounds)