STICK-ON® SERIES
Model ST-PD5U
Power Supply Distributor
ANYWHERE YOU NEED...
• Distribution of 24 Vdc Power
• Soft Start from Switching Supply
• Remote Distributed Power
• Up to 5 Power Distribution Points
• Voltage Presence Indication
• Reverse Voltage Protection
You Need The ST-PD5U!
The ST-PD5U is part of the group of versatile STICK-ON products from Radio Design Labs. The durable
adhesives provided with the ST-PD5U permit permanent or removable mounting. Numerous available
mounting accessories, brackets and rack-mount chassis are optionally available.
APPLICATION: The ST-PD5U is the ideal choice where power distribution from a current-limited
switching power supply is needed. It is suitable for powering up to five modules from a single power
supply. The current limiting circuitry in many switching power supplies will cause the supply to shut down
upon power-up when a high current capacitive load is connected. Upon application of power, the
ST-PD5U ramps the voltage up, charging any load capacitance as quickly as possible, then switching full
voltage to the load. If reverse polarity is connected to the input, the ST-PD5U disconnects the load until
the condition is corrected.
In system design, various modules are frequently operated from a single power supply. Good engineering
practice requires that the power wiring to each module originate at the power supply output.
The ST-PD5U serves as the power source for each of five modules. A single ST-PD5U can provide power
to RDL’s floating modules. A separate ST-PD5U can provide power to ground referenced modules.
(Do not attempt to intermix floating and ground referenced modules from a single ST-PD5U.)
Note: If using a linear power supply, distribute the voltage to multiple modules using an RDL ST-PD5.
Wherever power distribution from a switching power supply is needed, the ST-PD5U is the ideal choice.
Use the ST-PD5U combined with other RDL RACK-UP
products as part of a complete audio/video system.
®
, STICK-ON, TX™, or FLAT-PAK™ series
RDL • 659 N. 6th St. • Prescott, AZ., USA 86301 • (928) 443-9391 • FAX (928) 443-9392 • www.rdlnet.com
STICK-ON® SERIES
Model ST-PD5U
Power Supply Distributor
F
A
U
L
T
PWR IN
OUTPUTS 2A TOTAL
A B
C
D E
P
O
W
E
R
PS-24U2
Floating Modules
(DO NOT GROUND SUPPLY NEGATIVE!)
F
A
U
L
T
PWR IN A
OUTPUTS 2A TOTAL
B
C
DRE
P
O
W
E
S
INPUT
E
N
S
AUDIO CONTROLLED RELAY
PWR
MIC LEVEL MIXING AMPLIFIER
INPUTS
1
2 3
S
SHOWN DE-ENERGISED
L
A
V
E
LINE LEVEL
OUTPUT PWR
D
E
L
A
Y
G
LINE LEVEL
A
INPUT OUTPUT
I
N
G
INPUT
A
I
N
PHNTM
Installation/Operation
L
E
V
E
L
1
MIC LEVEL
OUTPUT
SWITCHABLE LOW-NOISE
MICROPHONE PREAMPLIFIER
DUAL AUDIO OSCILLATOR
F1 1 KHZ F2 10KHZ
F1 100 HZ F2 400HZ
FREQ 1
A B A B
SLOW GAIN CONTROL AMP
GATED OUTPUT
C
LINE
T
R
L
LINE LEVEL
OUTPUTS
BIPOLAR SUPPLY
GROUND INPUT
PWR
PWR
MIC
EN55103-1 E1-E5; EN55103-2 E1-E4
Typical Performance reflects product at publication time
exclusive of EMC data, if any, supplied with product.
Specifications are subject to change without notice.
MIC AND LINE AUDIO MIXER
INPUTS
2
1
MIC
LINE
AUDIO DISTRIBUTION AMPLIFIER
LINE LEVEL BALANCED OR UNBALANCED
INPUT
MASKING NOISE SOURCE
PWR
PINK OUTPUT
OUTPUTS
12
MICLINE
LINE LEVEL
OUTPUT PWR
3
G
A
I
N
PWR
INPUTS
FREQ 2
L
E
V
POWER
E
L
2
G
A
I
L
E
V
E
L
N
RANDOM NOISE GENERATOR
G
P
O
A
I
N
WHITE OUTPUT
LINE
MIC
W
E
R
+
OUTPUT
+10dB
P
O
W
E
R
GAIN
+24dB
+
24 VDC
PS-24U2
Ground-Referenced Modules
INPUT LOOP OUT
1
INPUT LOOP OUT INPUT LOOP OUT
INPUT LOOP OUT
2
3 4
MADE IN U.S.A.
RDL
CONTROL INPUTS
OFF 4321
CONTROL OUTPUTS
VIDEO OUT
4321
24 VDC
TYPICAL PERFORMANCE
Dimensions: Height: 1.55 in. 3.94 cm
Width: 3.00 in. 7.62 cm
Depth: 0.65 in. 1.65 cm
Input/Output Voltage: 24 Vdc regulated, not exceeding 2.0 A (intended for use with PS-24U2 and
PS-24U2A power supplies)
Note: For linear power supplies, use the ST-PD5
Radio Design Labs Technical Support Centers
U.S.A. (800) 933-1780, (928) 778-3554; Fax: (928) 778-3506
891-1040E
Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287
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