bgcolor=ccccff> « back to results for ""
Below is a cache of http://www.clearcom.com/support/datasheet_pdfs/datasheets_party_line/data_pl_ps232.pdf. It's a snapshot of the page taken as our search engine crawled the Web.
The web site itself may have changed. You can check the current page or check for previous versions at the Internet Archive. Yahoo! is not affiliated with the authors of this page or responsible for its content.
PS-232 Two-Channel Intercom Power Supply ®
PROFESSIONAL INTERCOM PRODUCTS
by Clear-Com
TERM. A
TERM. B
OFF
OFF
ON
ON
CHANNEL A
CHANNEL B
INPUT
TRIM
PROGRAM
PS-232
Two-Channel Intercom Power Supply
D E S C R I P T I O N
The PS-232 is the most advanced and innovative party-line power supply in
Clear-Coms history.
Featuring a custom-programmed microprocessor to control the power supply, the
PS-232 runs cooler and recovers more quickly under a full load than anything else
on the market. The 1-RU PS-232 can supply up to 2 amps peak at 30 volts DC to
two channels. This is sufficient to power up to 40 beltpacks or 15 speaker stations,
even under the most demanding conditions. Either channel is capable of supplying
up to 2 amps. The full current capacity may be divided between the two channels.
Clear-Coms advanced fail-safe design can sense the difference between a short and
an overload. Should a problem occur, each channels DC overload/fault LED identi-
fies the power supplys response to the problem: solid means an overload is sensed,
but still powered; blinking means power has been temporarily cut off to protect the
power supply. If both channels are operating and one channel has a fault, the other
channel will continue to operate normally. Power is restored to the shorted or over-
loaded channel in a little as .5 seconds. With our exclusive IntelligentFault/Overload
Sensing (IFOS), the PS-232 will dynamically increase this time period before
attempting another reset until the fault or overload is corrected. This function signif-
icantly extends component life. And there is no need to disconnect stations for the
power supply to reset.
In addition to system power, each channel offers a switchable termination and
three parallel XLR connectors, as well as an adjustable program feed. Connection to
remote stations is made with standard 2-conductor shielded mic cable. Program sig-
nal is fed into the system through a rear-panel, balanced TRS connector next to a
global input-level trim control. Individual on/off and program-send levels for each
channel are available on the front panel.
The unit also offers a convenient front panel intercom line jack, switchable to
either channel. This can be quite handy for troubleshooting or simply a time saver
when quick access to either intercom line is needed.
Another feature unique to the PS-232 is a built-in test tone generator. A 440Hz
tone is available on either or both channels and is indispensable for system diagnos-
tics and set-up. Simply flip a switch, set a level, and go.
PS-232 Back Panel
F E AT U R E S
Provides up to 2 amps peak in
only 1RU
Supports up to 40 headset
stations or 15 speaker stations
Exclusive IFOS Intelligent
Fault/Overload Sensing for
system reset
Front panel intercom line jack
selectable for either channel
A+B Link switch for single
channel operation
Balanced program input with
global and individual channel
controls
Universal power supply
accepts 90-240 VAC
Overload/fault indicator for
each channel
Built-in test tone generator for
set up and diagnostics
Switchable terminations for
each channel
Works in parallel with other
power supplies and main
stations
UL Listed and CE certified Clear-Com Intercom Systems:
4065 Hollis Street, Emeryville, CA 94608, USA
Ph: (510) 496-6666, Fax: (510) 496-6699 www.clearcom.com
©2002 Clear-Com Intercom Systems. PL-Pro is a Registered Trademark of Clear-Com. #PS232/302
Like all current Clear-Com Party-Line power supplies, two or more units can
be connected in parallel for increased system capacity or backup redundancy.
Multiple units will automatically synchronize their response to power faults and
overloads. The PS-232 can also operate as a single-channel unit by using the
front-panel A+B link switch. Unitized chassis construction of heavy-gauge alu-
minum and an extra thick front panel create a rugged, durable enclosure able
to withstand the rigors of portable use.
The PS-232 is UL listed and CE certified. Its universal switching power
supply will accept input voltages between 90 and 240 VAC, for trouble-free
use anywhere.
A & E S P E C I F I C AT I O N S
The EIA standard 1-RU rack-mountable two-channel intercom power supply
shall have rear-panel connections for two intercom channels, each with three
male 3-pin XLR connectors and a termination switch. The rear panel shall also
have a TRS balanced line-level program input, program-level trim pot and IEC
type AC input connector. The front panel shall have program send level, pro-
gram On/Off switch, and an overload LED for each channel. It shall also have a
power On/Off switch, power On LED, A+B link On/Off switch, A+B link on
LED, test tone On switch, male 3-pin XLR intercom line connector, and an
A/B channel-select switch for that connector. The power supply shall be capable
of supplying up to 2 amps to any one channel with a total unit maximum cur-
rent capacity of 2 amps peak at 30 VDC.
The built-in test-tone generator shall produce a steady tone of 440 Hz,
+/- 8%. The units power supply shall work with any AC wall voltage between
90 and 240 VAC, 50 or 60 Hz. Two or more PS-232 units wired together shall
automatically synchronize any protection circuit and subsequent system reset
response to circuit shorts or overloads. The units fault/overload restore timing
will be based upon thermal modeling of the power supply circuitry and will
adjust the power-restore times appropriately.
The dimensions shall be 19 W x 5.25 D x 1.75 H (483mm x 133mm
x 44mm); weight shall be 4.5 lbs. (2.05kg). The power supply shall be known
as the Clear-Com PS-232.
PS-232
Two-Channel Intercom Power Supply
P S - 2 3 2 B L O C K D I A G R A M
S P E C I F I C AT I O N S
POWER SUPPLY
Type: Switching, with post filters and overload
reset circuitry
Output Voltage: 30 volts DC
Output Current:
Channel A; 1 amp contiuous, 2 amps peak
Channel B; 1 amp contiuous, 2 amps peak
Total; 2 amps peak
Short Circuit Reset Time: 0.5 to 20 sec.
depending upon recent overload activity
Hum & Noise: < -70 dBV
Station Capacity: 50 headset stations or 15 speaker
stations, distributed over both channels
PROGRAM AMPLIFIER
(Transformerless, balanced differential input)
Input impedance: > 100 k Frequency Response: 150 Hz -18 kHz +_ 2 dB
Line Level Input: -20 dBV
SYSTEM SPECIFICATIONS
Termination Impedance: 200 , switchable
Intercom Line Length:
5,000 ft. maximum (single channel)
500 ft. for crosstalk < -50 dB
(with multi-channel stations)
System Frequency Response: 150Hz -18 kHz +
_ 2 dB
REAR PANEL CONNECTORS
Intercom: (6) XLR-3M (3 per channel)
Program: (1) 1/4 TRS
AC Power: (1) IEC 320 connector
REAR PANEL CONTROLS
(2) Termination on/off; (1) program input level
FRONT PANEL CONNECTOR
Intercom: (1) XLR-3M (selectable channel A or B)
FRONT PANEL CONTROLS &
INDICATORS
(1) Intercom Select switch; (2) Program On-Off
switches; (2) Program Send Level controls;
(1) Test Tone switch; (1) A+B Link switch;
(1) Power On switch; (2) Overload lights;
(1) A+B Link light; (1) Power On light
POWER REQUIREMENTS
90 - 240 VAC, 50 - 60 Hz, 60 VA
ENVIRONMENTAL
32 - 122o F (0 - 50o C)
DIMENSIONS
19 W x 1.75 H x 5.25 D
(483 mm x 44 mm x 133 mm)
WEIGHT
4.5 lbs. (2.05 kg)
Specifications are subject to change without notice.
Voltage
Regulator
90 - 240
VAC
Power
Program
Trim
Switching
Power Supply
Module
Program
Input
Channel A
Power
Controller
Channel A
Voltage
Sensor
Channel A
Current
Sensor
Channel B
Power
Controller
Channel B
Voltage
Sensor
Channel B
Current
Sensor
Ch B
Term
Ch A
Term
Microprocessor
Overload
Channel
A
Overload
Channel
B
Filter
440 Hz
A + B
Link
Test Tone
On / Off
B
Send Levels
A
Channel
B
Channel
A
Program
On / Off
A
B