IMPORTANT SAFETY INSTRUCTIONS!
Please read this very carefully before operating this unit
Read ALL instructions carefully before using this unit.
Do not operate this unit near water, in the rain, or where there is
moisture. If this warning is ignored a serious electrical shock or death
may occur.
Do not attempt to service this unit. No user serviceable parts inside.
Refer servicing to qualified, ISP approved service personnel.
Never remove or defeat the ground connection on the power cord of
this unit.
Care should be taken to avoid spilling any foreign objects or liquid
into this unit.
Failure to follow these instructions may void the warranty.
INTRODUCTION
Thank you for your purchase of the ISP Technologies High Definition Distributed System
MASTER CONTROL MODULE. This product provides a new level of performance in
distributed audio systems allowing greater system flexibility and easy installation of
distributed sound. All outputs and control connections are made via Cat5 RJ45
connections making installation of systems faster and easier using the Master Control
Module.
PRECAUTIONS
NOTE: IT IS VERY IMPORTANT THAT YOU READ THIS SECTION TO PROVIDE
YEARS OF TROUBLE FREE USE. THIS UNIT REQUIRES CAREFUL HANDELING.
All warnings on this equipment and in the operation instructions should be adhered to and
all operating instructions should be followed.
Do not use this equipment near water. Care should be taken so that objects do not fall
onto and liquids are not spilled into the unit through any openings.
The power cord should be unplugged from the outlet when the unit is left unused for an
extended period of time.
DO NOT ATTEMPT TO SERVICE THIS EQUIPMENT. THIS EQUIPMENT SHOULD BE
SERVICED BY QUALIFIED SERVICE PERSONNELL ONLY. DO NOT MAKE ANY INTERNAL
ADJUSTMENTS OR ADDITIONS TO THIS EQUIPMENT AT ANY TIME. DO NOT TAMPER
WITH INTERNAL ELECTRONIC COMPONENTS AT ANY TIME. FAILURE TO FOLLOW THESE
INSTRUCTIONS WILL VOID THE WARRANTY OF THIS EQUIPMENT, AND MAY CAUSE A
SHOCK HAZZARD.
OPERATION
The HDDS Master Control Module is the Master control center for distributed sound
systems using the HDDS technology. The Master Control Module includes six zones
that can be used independently or can be linked to work together allowing the system
designer the flexibility to set up any system with the desired configuration. The block
diagram below shows the basic configuration of the Master Control Module.
Front Panel Controls
1. Zone 1 Master Level Control
2. Zone 1 Link Indicator (when lit Zone 1 is linked to Zone 2)
3. Zone 2 Mater Level Control
4. Zone 2 Link Indicator (when lit Zone 2 is linked to Zone 3)
5. Zone 3 Master Level Control
6. Zone 3 Link Indicator (when lit Zone 3 is linked to Zone 4)
7. Zone 4 Mater Level Control
8. Zone 4 Link Indicator (when lit Zone 4 is linked to Zone 5)
9. Zone 5 Master Level Control
10. Zone 5 Link Indicator (when lit Zone 5 is linked to Zone 6)
11. Zone 6 Mater Level Control
12. Zone 6 Link Indicator (when lit allow zone 6 to link to another Master Control
Module Zone 1
13. Power LED, illuminates when the power is switched ON
14. Main Power Switch
Rear Panel
1. Zone 6 connections
2. Zone 5 connections
3. Zone 4 connections
4. Link Out (allows connection to an additional Master Control Module)
5. Power Inlet for IEC power cord
6. Zone 3 connections
7. Zone 2 connections
8. Zone 1 connections
9. Link In (allows connection to an additional Master Control Module)
Principles of the Master Control Module operation:
Each of the six zones of the Master control Module allow input of a balanced audio
signal and a front panel Master Level Control for each zone. As can be seen in the
previous block diagram all level control is provided by a voltage controlled amplifier.
The VCA output is followed by a differential line driver which drives the outputs A, B
and C on the rear panel of the Master Control Module. Each output A, B and C combine
the balanced audio signal with two 22VAC signals and a ground reference to feed the
externally connected powered speakers connected to output A, B and C. Each zone
also includes a Remote Zone Level port, which allows an external level control and
adjustment for each of the six zones.
Zone Control
Each Zone has a front panel Master Level control
(1) and a Link indicator light (2).
When the rear panel link button is pushed in the
front panel link light will illuminate indicating that
the zone has been linked with the next zone in the
Master Control Module. When linked to the next
zone the Master Level control will now control the
level of both zones and the second zone level
control will not have any effect on the level.
Zone Level Control
The front panel Master Level control will adjust the level of the zone and will also set
the maximum level of each zone. Each zone also includes a rear panel remote zone
port, which allows connection of a remote zone level control.
NOTE: The front panel Master Level control is the Zone MASTER and sets the maximum
level while the rear Remote Zone level control connected to the rear port will only allow
adjustment from a minimum setting to the maximum level set on the front panel Master
Level. This allows the Master Control Module to be placed in a location where access to
the Master Levels can be restricted and yet allows Remote Level access at a remote
location.
Rear Panel Zone Input / Outputs and Link control
Zone 1 of the rear panel is shown below. Each zone includes a link button, which links
the zone to the next zone in sequential order. This means that Zone 1 can be linked to
Zone 2 and Zone 2 can be linked to Zone 3 etc. When Zone 1 is linked to Zone 2 the
Master Level and Remote Level of Zone 1 control both Zone 1 and Zone 2 and the
Master Level and Remote Level for Zone 2 will not function. By linking all zones on the
Master Control Module Zone 1 Master Level and Remote Level will adjust the levels for
all six zones in the Master Control Module.
The Audio input signal for each Zone is connected via a Phoenix style connector on the
rear of each zone. Note that this is a balanced audio input where the connections are
the same as a professional XLR as:
1 = GROUND
2 = POSITIVE + AUDIO
3 = NEGATIVE – AUDIO
Each Zone has a separate and independent balanced audio input. Note that even when
the Zone is linked to the previous zone the audio input does not link, this allows the
installer to build stereo Zones if desired. If stereo operation is desired you can, for
example, connect left audio to Zone 1 and right audio to Zone 2. By linking Zone 1 and
Zone 2 you can control both zones as a stereo pair and mentioned above
NOTE: Pushing the Link button on the rear of the Zone will illuminate the link LED on
the front panel of the unit indicating that the zone is linked to the following zone.
All outputs A, B and C are provided via standard RJ45 connectors and are intended to
connect to the HDDS powered speakers via Cat5 cable. Note: when connecting to
Plenum rated ceiling speakers use only proper plenum rated Cat5 cable.
Zone Outputs
Each of the three Zone outputs A, B and C are capable of delivering up to 8 amps of
continuous output current to the externally connected speakers. Each Zone output has
internal resettable fuses in both of the two AC power outputs. Each AC power signal
uses two wires in the Cat5 cable. The two AC power signals that feed power down the
Cat5 cable will open if more than 5 amps per AC line is exceeded. If the resettable
fuses open on one of the three outputs the unit will need to be powered down for more
than 30 seconds to reset the internal fuses.
SPEAKER POWER:
The HDDS system distributes low voltage Alternating Current over the Cat5 cable plus
high level balanced audio and is capable of greater than 30 watts continuous power per
speaker. Each of the three outputs A, B and C are capable of delivering up to 7 amps
of output current. With a typical power per speaker of 10 watts each speaker will
consume on the order of 400mA, which means that 12 ceiling speakers would require
4,800mA of current. Installed systems that require more output power per speaker
simply require that the number of speakers per output A, B and C be reduced so as not
to exceed the maximum of 7 amps available. The current consumption at full power
(30 watt continuous) will require over 1 Amp of power per speaker. In order to allow
the full 30 watts of power where higher output levels are desirable the number of
speakers per A, B and C outputs on each zone needs to be limiting the maximum
number 5. Reducing to 20 watts of power per speaker, a maximum of 8 speakers per
output can be connected to each A, B and C zone output. With longer runs of cable
exceeding 150 feet the cable voltage drop will start to become a design factor. The
Cat5 cable will start to limit the total power capability once you exceed 75 feet of cable.
Where maximum power output is critical a more precise calculation can be done by
following the speaker consumption guide.
Linking Zones
The picture below shows Zone1 linked to Zone 2, Zone 3 linked to Zone 4 and Zone 5
linked to Zone 6. This configuration will allow either mono or stereo control of a pair of
Zones. Each zone on the rear of the Master Control Module.
External Link IN / OUT
The Master Control Module provides external linking to additional Master Control
Modules by Cat5 connection via the Link In and Link Out connectors on the rear panel.
If more Zones are required in a system or more speakers in one large zone connection
from one Master Control Module to additional Master Modules is simply done by
connecting the Link output from the controlling unit to the Link in on another unit.
Pushing the zone 6 link button one the first Master Control Module will link Zone 6 of
the first Master to Zone 1 of the second Master Control Module. This will allow Zone 1
on the first Master Control Module to control all 12 Zone outputs if all link buttons are
pushed in linking on all Zones.
Cat5 Connections
The figure below shows the connections for each output A, B and C of each zone.
Connections are done via standard Cat5 cables where pins 1 through 8 are connected
common to the same pins 1 through 8 at each end. As shown below two wires in the
Cable are use for balanced audio and 6 wires are used for power with two providing
ground and two for each of two 22VAC power signals fed down the cable.
Remote Level Control Connections
The figure below shows the connections used for the external Remote Zone Level
Control. The Master Control Module feeds 10VDC down a Cat5 cable are sets the zone
level based on the DC Voltage that appears on pin 5 of the Cat5 cable. The level
adjustment is done with an internal Voltage Controlled Amplifier VCA which means that
a simple DC voltage is used to set the remote level eliminating the need to feed low
level audio down a long run of cable.
HDDS MASTER CONTROL MODULE SPECIFICATIONS
POWER CONSUMPTION: 10 AMP MAXIMUM @120VAC
AUDIO INPUT: Balanced 20k input impedance
Pin 1 = GND
Pin 2 = Audio +
Pin 3 = Audio -
OUTPUT PER ZONE: 7 AMP CONTINUOUS 10 AMP PEAK
MAX TOTAL OUTPUT CURRENT: 33 AMPS
LEVEL CONTROL: INTERNAL VCA CONTROL
REMOTE CONTROL LAW: 10VDC – OVDC 1V / 10DB
WEIGHT: 18LBS
WARRANTY AND SERVICE
The unit, parts and workmanship are fully guaranteed to be free of defects under
normal use and service for a period of 3 years from the date of purchase.
Any damage resulting from the misuse or the failure to follow the precautions and
instructions will void the warranty.
In the event that the unit needs to be repaired, please return the unit to ISP
Technologies directly. Simply repack the unit, send a copy of the original receipt, a
note stating the problem, and send it to:
ISP Technologies, LLC
5479 Perry Drive Unit B
Waterford, MI 48329
Attn: Repair Dept.
All shipping charges must be fully prepaid.
ISP will not be responsible for any damages incurred in shipping of any unit. Any claim
will need to be settled with the shipping company.
The warranty will be voided if the serial number has been tampered with in any way.
The warranty card must also be filled out and returned in order to activate the
warranty.
Should you have any questions for the repair department prior to returning the product
please call 1-(248)-673-7790
NOTE: This Product is covered under the following patent 6,831,514 with other patents
pending:
ISP TECHNOLOGIES, LLC
5479 PERRY DRIVE SUITE B
WATERFORD, MI. 48329
248-673-7790
FAX: 248-673-7696
WWW.ISPTECHNOLOGIES.COM
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