PS Engineering PM3000 11931A, PM3000 11932, PM3000 11933A, PM3000 11934 Operation And Installation Manual

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9800 Martel Road

Lenoir City, TN 37772

PM3000

High-fidelity Stereo Intercom System

Part Number 11931A: 4-Place

and

Part Number 11932: 6-Place with

Operation and Installation Manual

FAA-TSO

C50c

Also includes 11933A, 11934, non-FAA TSO units

Document P/N 200-193-0005 Revision 8, Nov. 2013

PS Engineering, Inc. 2013 ©

Any reproduction or retransmittal of this publication, or any portion thereof, without the expressed written permission of PS Engineering, Inc. is strictly prohibited. For further information contact the Publications Manager at PS Engineering, Inc., 9800 Martel Road, Lenoir City, TN 37772. Phone (865) 988-9800

Standard

CREW Mode

CREW

200-193-0005 Rev. 8, Nov. 2013

Page 1

Section I General Information

1.1 Introduction

The PM3000 is an FAA-TSO approved, panel

mounted, 4- to 6-place high-fidelity stereo intercom system (ICS). Please read this manual completely before installation to minimize the risk of damage to the unit and to become familiar with all the features.

1.2 Scope

This manual contains installation and operational instructions for the following PS Engineering units:

Model Description Part Number

PM3000 Standard 4-place system 11931A

PM3000 6-place system w/CREW 11932

PM3000 4-place w/recorder 11933A

PM3000 6-place w/CREW & recorder 11934

1.3 Description

The PM3000 is a 4- or 6-place (depending on model), panel-mounted intercom with multiple volume and VOX (voice activated squelch) circuits using unified volume and squelch controls for the pilot, and copilot. Passengers volume is adjusted at the headset, after setting a master volume service adjustment on the side of the unit.

With few controls for the pilot to use, the operation of the PM3000 is very straightforward. Yet the unit outperforms its much more complicated competition. Although there is only one volume control knob, when an adjustment is made to the volume control, the crew output amplifiers are being changed simultaneously. Likewise, when the squelch control knob is adjusted, several VOX circuits are being changed at the same time. Since the system is designed to use modern stereo headsets, it is not necessary to balance the volume and squelch controls at the intercom.

A mode switch allows the pilot to select different con-

figurations. The "ALL" mode places all headsets on a party line. In the "ISO" mode, the pilot is isolated

from all others and is connected to the aircraft radio allowing un-interrupted radio communications.

The third mode, "CREW," included in part number

11932 (and 11934), allows the pilot and copilot to be separated from the passengers.

The PM3000 has an automatic fail-safe interconnect to the aircraft radios. If power is disrupted to the intercom for any reason, the pilot's headset is connected directly to the aircraft radio allowing continued radio communications in one earcup.

A 2-color LED is green when power is on and changes to red when a Push to Talk (PTT or microphone key) is pressed.

Provision for entertainment input allows the pilot, copilot and passengers the option to listen to music during flight. During intercom or aircraft radio reception, this music will automatically mute to allow communications without distraction. When the activity ceases,

the SoftMute™ circuit gradually returns the music to

the original listening volume. By depressing the “Mute” control (located on the Squelch knob) once, it is possible to have the music remain at a constant level, regardless of any ICS or radio traffic.

During various phases of flight, the degree of importance of the aircraft radio will vary. Because the "ISO" mode connects the pilot directly to the aircraft radio, select the "ISO" mode when the pilot must have top priority on radio transmissions.

Both pilot and copilot have transmit capabilities over the radio. The PM3000 only allows the voice of the person who presses their PTT to be transmitted over the aircraft radio. If both pilot and copilot press the PTT at the same time, the copilot will override. When either pilot or co-pilot presses PTT, all other microphones are disabled. The pilot can regain priority by switching the unit off.

1.4 Approval Basis

The PM3000, part number 11931A or 11932, is FAA-

approved under TSO-C50c, and RTCA, Inc. DO-214. Due to the fact that there is no TSO for the recorder function in the 11933A and 11934, these units are not TSO-approved. It is the responsibility of the installer to determine the approval basis for these units.

1.5 Specifications

Input power: 13.8 - 27.5 Volts DC Current : < 200 mA (Externally fused at 1 Amp) Headphone Impedance: 150-1000 Ω (typical) Audio Distortion: <1.2% @ 50mW into 150 Ω load Aircraft Radio Impedance: 1000 Ω (typical) Mic Frequency Response:±3 dB, 350 Hz — 6000 Hz Music Frequency Response: ±3 dB, 200 Hz – 15 kHz Unit weight: 12 Ounces (0.34 kg) Dimensions:

1.25" H x 3.00" W x 5.50" D (3.2 x 7.6 x 14.0 cm) Environmental and technical qualifications: RTCA DO-160C/DO-214 Temperature -20º to +55º C

Page 2

200-193-0005 Rev. 8, Nov. 2013

1.6 Equipment required but not sup-

plied

1.200

0.838 0.838

1.200

A.Interconnecting cables as required (may be ordered

from PS Engineering)

B.Headphones, 150 Ω stereo, as required

C.Microphones, general aviation, as required

D.Interconnect wiring

E.Circuit Breaker 1 Amp.

Optional (see page 8):

2 ¼” Mounting Plate without 2 ¼” Mounting Plate with crew p/n 575-030-0005

crew p/n 575-030-0007

1.7 License Requirements

None

Section II Installation

2.1 General Information

The PM3000 comes with all mounting hardware and jacks for installation. Installation of the PM3000, us-

ing the hardware supplied and available wiring does not require special tools or knowledge other than described in FAA Advisory Circular 43.13-2B. It is the installer's responsibility to determine the approval basis for this installation. An FAA Form 337, or other approval may be required. See Appendix B for example of FAA Form 337.

2.2 Unpacking and preliminary inspection

The PM3000 was carefully inspected mechanically

and thoroughly tested electronically before shipment. It should be free of electrical or cosmetic defect.

Upon receipt, verify that the parts kit includes the following:

PM3000 Installation Kits:

Part Number Description 11931A 11932 11933A 11934

475-442-0002 #4-40 screws, black 2 2 2 2 625-003-0001 Knobs (Soft Touch) 2 2 2 2 575-030-0001 Faceplate (w/crew) 1 1 575-030-0003 Faceplate (no crew) 1 1 425-025-0010 25 pin connector shell 1 1 1 1 425-020-5090 Crimp Sockets 25 25 25 25 625-025-0001 Connector hood 1 1 1 1 475-002-0002 Connector Thumbscrews 1 1 1 1 200-193-0003 Operator's Guide 1 1 1 1 122-001-0000 Drill Template 1 1 1 1 475-003-0002 Insulated Shoulder Washers 9 13 9 13 475-003-0001 Insulated Flat Washers 9 13 9 13 550-001-0002 Stereo Headphone Jack 4 6 4 6 550-001-0003 Microphone Jack 4 6 4 6 550-008-0001 Music Input Jack ⅛” 1 2 1 2 550-005-0001 Playback Plug 3.3mm 1 1

0.250

0.325

2 ea. 0.125

NOT TO SCALE

0.297

2 ea. 0.314

2.3 Equipment installation procedures

Figure 1 Hole Spacing

1. Using the template, drill six holes in the instrument panel in a location convenient to the pilot position (s).

2. Insert the PM3000 from behind the instrument

panel, aligning the holes for the knobs, LED, and switch.

3. Place the aluminum plate over the knob shafts and secure, using the two # 4-40 round head screws provided.

4. Install the knobs over the volume and squelch control shafts.

5. Complete a wiring harness in accordance with Appendix D.

2.4 Cable harness wiring

To complete the installation, a wire harness must be made as shown in Appendix D.

Note:

PS Engineering can make a custom-tailored wiring harness for the installer. All harnesses use Mil-spec quality components with professional techniques, and are fully tested before shipment. Contact PS Engineering for more information, www.ps-engineering.com.

If the aircraft already has pilot headset jacks installed, you may re-use one mono set for the AUX (radio ) jacks but they should be moved to a new location to avoid confusion with the pilot's headphone jacks. In the event the intercom has to be removed for any reason, these jacks provide access to the aircraft radio system. Remove and discard copilot headset jacks if these are monaural.

To connect intercom into the aircraft audio system, parallel the appropriate set of cables from the intercom to the Auxiliary Aircraft Radio Headset Jacks. Finally, install new pilot, copilot and passenger headset jacks

200-193-0005 Rev. 8, Nov. 2013

Page 3

into the aircraft and connect them directly to the ap-

propriate pins of the PM3000. See the wiring diagram

for all details of the wire harness interconnect.

2.4.1 Electrical Noise Issues

WARNING: You must use individual shielded cables

for the microphone and headphone jacks. Combining these two wires WILL cause loud oscillations and degrade the intercom function. The oscillation is caused by the cross-coupling between the large headphone signal and the small microphone signal. The resulting feedback is a high-pitched squeal that varies with the volume control.

Due to the variety of the radio equipment found in today's general aviation aircraft, there is the potential for both radiated and conducted noise interference.

The PM3000 has a specially designed power supply to

reduce conducted electrical noise on the power bus of the aircraft by at least 50dB. Although this is a very large amount of attenuation, it does not eliminate all noise when the amount is excessive. There must be at

least 13.75 Volts DC present at the PM3000 for the

power supply to work within its optimum regulation. Otherwise, it will not be able to attenuate noise properly.

Shielding can protect the system from radiated noise (rotating beacon, electric gyros, switching power supplies, etc.). However, installation combinations can occur where minor interference is possible. The

PM3000 was designed in an interference -protected

chassis and has internal filter capacitors on all input lines.

Ground loop noise occurs when there are two different return paths for the same signal, such as airframe and ground return wire. Large cyclic loads such as strobes, inverters, etc., can inject audible signals onto the airframe return path. Follow the wiring diagram very carefully to help insure a minimum of ground loop potential. Radiated signals can be a factor when low level microphone signals are bundled with current carrying power wires. Keep these cables separated.

Insulating washers are required headphone jacks to isolate them from aircraft ground. The use of a conductor instead of a shield for ground return eliminates these ground loop paths.

on all microphone and

2.4.2 Power & Dimmer

The PM3000 was designed to work with 12.8 to 27.5 volt DC negative ground systems. The PM3000 must

be externally protected with a one ampere (1A) circuit breaker or fuse.

[11931A & 11933A] Connect Pin 5 to the aircraft

dimmer bus. This will adjust the Power/Xmit LED for

varying lighting conditions. If no connection is made, the LED will be at maximum brightness.

The unit is shipped for 14 VDC dimmer systems. For a 28 VDC aircraft dimmer system, open the PM3000 case and remove the Jumper J2.

2.4.3 Unswitched Audio Input

The PM3000, P/N 11931A & 11933A have two unswitched audio inputs available for 500Ω aviation audio sources. Pin 17 is Unswitched #1, and is also provided to the pilot in Fail-Safe Mode. Unswitched #2 input is Pin 4.

2.4.4 Sidetone

The PM3000 can be modified to produce sidetone (hearing your voice during transmit), if the aircraft radios do not produce it. Contact the PS Engineering factory for details.

2.4.5 Entertainment Input

Stereo entertainment devices can be connected to the

PM3000. Install ⅛" stereo jacks convenient the pilot

and passengers to connect the entertainment devices into the system. PM3000, part number 11931A has a single entertainment input. The part number 11932 will accommodate two inputs, one for the crew, and another separate input that feeds the 4 passengers in CREW mode.

It is possible to use only one entertainment device to

Use only low level output of the entertainment devices

to connect to the PM3000. Maximum signal level on

the input is 2-volts peak-to-peak.

DO NOT USE

OUTPUT LEVELS.

This will cause internal damage.

provide music for both inputs in the 11932 system by connecting the output of the entertainment device in parallel to both the Music #1 and Music #2 inputs. We highly recommend, however, that you install a switch between the entertainment device and Music #1. This will give the pilot and copilot the ability to switch off music while in the CREW mode.

The music device will automatically mute when the ICS or aircraft radio becomes active. The Soft Mute™ feature slowly returns the music to full volume when the activity ceases. Pressing the Mute disable switch

If speaker levels are to be used, install an

Audio Link, p/n 101PL2,

available from Crutchfield (1-800-955-3000).

SPEAKER

Page 4

200-193-0005 Rev. 8, Nov. 2013

(located on the squelch control) in will inhibit this feature. Press again to reactivate SoftMute. Music #2 will never be muted during conversation and is heard only by the passengers while the intercom is in the Crew mode.

2.4.6 Passenger Volume Adjustment

The 6-place PM3000 (11932, 11934) has adjustments for passenger volume control. These are accessed through the left side of the unit (viewed from the front). There is a separate volume control for the left and right channels. The left adjustment is toward the front, and clockwise adjustment reduces passenger volume.

2.4.7 Internal Recorder (11933A, 11934 only)

PM3000 part number 11933A and 11934 have an internal recorder that stores recent incoming radio messages. A 3.5 mm jack is provided on the rear of the intercom unit to interface this function. Install a momentary, normally open (NO), switch in a location convenient to the pilot, and wire to the 3.5 mm plug (included) across the tip and sleeve contacts. Closing this switch will activate the playback. A low-current rated switch is recommended.

2.4.8 Monaural installations

The PM3000 can be installed as a monaural intercom. Connect the RIGHT channel to the headsets (this contains failsafe audio). Do NOT combine left and right headphone outputs.

2.4.9 External PTT hook-up

Part of the installation includes the installation of PTT (Push-to-Talk) switches that allow radio transmissions from pilot and copilot positions.

There are three configurations that can be used. You must select the case that best fits your installation. NOTE

: Only the person who presses their PTT switch

will be heard over the radio.

CASE I-The PTT is built into the pilot and copilot

yokes

Simply install the plugs from the headset into the aircraft headphone jacks. Then use the yoke mounted PTT to transmit. No other action is required.

CASE –II Built in PTT only on the pilot side

This configuration requires a modified external PTT switch plugged into the copilot's mic jack. (See Appendix A) When the copilot's PTT is depressed, this activates an internal relay that switches the mic audio to the aircraft radio from the pilot to the copilot.

Case III -No built in PTT switch at all.

Two built-in PTT must be installed or two external, modified PTT switches will be required for both the pilot and copilot. Modifications to the PTT may be required. (See Appendix A)

2.5 Post installation checkout

After wiring is complete, verify aircraft power is ONLY on pin 13 of the connector, and airframe ground on pin 1. Other voltages may be present on the incoming mic lines. Wiring errors can cause serious internal damage and void PS Engineering's warranty.

1. Apply power to the aircraft and avionics.

2. Plug headsets into the pilot, copilot and passenger

positions.

3. Verify that the pilot position can transmit and re-

ceive with the PM3000 in the OFF position (left

hand knob controls on/off by push on-push off).

4. Push the volume knob to switch the PM3000 on.

Rotate the volume clockwise, about half way. Ver-

ify that the Pwr/Xmt light comes on green. If the

LED is red, immediately switch off the avionics, and troubleshoot the PTT installation.

5. Verify that the pilot can transmit and receive on the

communications transceivers.

6. Verify proper intercom operation for pilot, copilot

and passengers. For more information, consult Section 3.

7. Verify proper transmit and receive operation on the

copilot position, noting that the copilot PTT switch allows proper transmission.

8. Verify proper Intercom system operation in the

ALL, ISO (and CREW in part number 11932,

11934) modes.

9. Verify that the intercom system does not adversely

affect any other aircraft system by systematically switching the unit on and off, while monitoring the other avionics and electrical equipment on the aircraft.

10. Recorder Check Out (11932A, 11934 only) Tune

a communications radio to an active 2-way channel, (not AWOS or ATIS). Listen for a radio transmission. When it is concluded, press the “Playback” button and verify that the last message plays in the pilot headset.

200-193-0005 Rev. 8, Nov. 2013

Page 5

Section III OPERATION

With the installation is complete, turn the PM3000 on

by pushing the volume control. This also engages the automatic fail-safe system. The intercom volume control does not control the volume of the aircraft radio, allowing an additional degree of aircraft radio listening flexibility.

intercom volume to be balanced independently. The volume control affects the music level for the pilot and copilot positions.

By turning the control clockwise, the audio level will

increase. The PM3000 has individual output amplifi-

ers for each headset in the system and provides plenty

of audio output power. NOTE: Volume level will not

change with the number of headset installed.

Music # 2 passenger volume in CREW mode (11932 and 11934) version is a fixed level, and controlled locally by the headphone volume control or music device.

3.2 Adjusting the Squelch Control

Figure 2 PM3000 (11931A, 11933A) front panel

controls

channels off (silent) while the pilot, copilot or passengers are not speaking. This reduces background noise from the aircraft. Only when someone speaks will their microphone turn on, allowing the audio to pass through the system. Although there is just one squelch control, there are actually three separate squelch threshold circuits. One circuit each for the pilot, copilot, and passengers. Only the microphone actually in use is open, reducing noise in the system.

With the engine running, set the squelch control knob by slowly rotating the squelch control knob clockwise

This VOX operated intercom keeps all microphone

Figure 3 PM3000 (11932, 11934) front panel con-

trols

until you no longer hear the background noise in the earphones. When the microphone is positioned properly near the lips, normal speech levels should open

3.1 Adjusting the Volume

The PM3000 volume control knob adjusts the loud-

ness of the intercom and music only. The volume control on the PM3000 does not

affect the volume level of

the channel. When you have stopped talking, there is a delay of about one half second before the channel closes. This prevents squelch closure between words, and helps eliminate choppy intercom conversations.

the aircraft radio. This allows the aircraft radio and

Mode Pilot Hears Copilot Hears Passenger Hears Comments

Isolate A/C Radio,

Pilot Sidetone (during radio trans-

mission)

Copilot and passenger intercom,

Music #1

Passenger and Copilot intercom,

Music #1

This mode allows the pilot to communicate with the ground without the copilot or passengers bothered by the conversations. Copilot and passengers continue to communicate and listen to music #1

All Pilot,

Copilot, A/C Radio, Passengers, Music #1

Crew (11932 11934 only)

Pilot, Copilot, A/C Radio Entertainment #1

Copilot, Pilot, A/C Radio, Passengers, Music #1

Copilot, Pilot, A/C Radio Entertainment #1

Page 6

Passengers, Pilot, Copilot, A/C Radio, Music #1

Passengers, Entertainment #2

This mode allows all on board to hear radios as well as communicate on the intercom. Music and intercom is muted during intercom and radio communications

A second music source is automatically enabled for the passengers. Rear music not muted.

200-193-0005 Rev. 8, Nov. 2013

3.3 Mode Select

The center switch is a mode control that allows the pilot to tailor the intercom function to suit flight conditions. Regardless of configuration, the pilot will always hear the aircraft radio. NOTE: If there is a

power failure to the PM3000, or if the power switch is

turned off, the copilot will not hear the aircraft radio. Only the pilot is connected directly to the aircraft radio.

ISO (Up Position): The pilot is isolated from the inter-

com and is connected only to the aircraft radios. He will hear the aircraft radio reception (and sidetone during radio transmissions). Copilot and passengers will hear themselves and music but not the aircraft radio traffic.

ALL (Middle position): All parties will hear the air-

craft radio, intercom, and music. However, during any ICS conversation, the music volume automatically mutes. The music volume increases gradually back to the original level after communications have been completed.

CREW (11932, 11934 only) (down position): Pilot

and copilot positions will hear aircraft radio and music number one. Passengers will only hear other passenger’s intercom, and music number 2. Music number two will not mute during intercom conversation.

3.4 Music Mute Control

Normally, any radio traffic or intercom conversation will mute the music heard in ALL mode, or for the front in CREW. However, when the crew desires uninterrupted music, the PM3000 can be placed in the Karaoke Mode, for singing along. Press the right knob (squelch) once to activate Karaoke mode, so the music will not be muted. Press again to restore the SoftMute function.

Local oscillators and other internal signals from

CD or radio equipment can cause undesired inter-

ference with VHF navigation and communication

equipment.

Before takeoff, operate the entertainment device to

determine if there is any adverse effect on aircraft

systems. If any unusual operation is noted in flight,

immediately switch the entertainment device off

3.5 Internal Recording System (11933A, 11934 only)

This records the last radio messages, storing up to 60 seconds of received radio phrases. Only the pilot will hear the playback. The last message received will be the first one played back. This function is intended to

help the pilot determine is a radio call was meant for him, and not to store clearance or ATIS.

To play back the last recorded message, press the switch labeled “Playback” installed in the aircraft. To cancel the playback, press and hold the playback button for two seconds. The next time the button is pressed, the earlier message will be heard. If the radio becomes active while a message is playing, the message playback will stop. The new audio will not be stored. Press play to restart the message you were playing.

A radio signal of more than 1 VRMS is needed to trigger the IRS. Therefore, if the IRS does not seem to be recording, increase the aircraft radio volume.

Section IV Warranty and service

4.1 Warranty

In order for the factory warranty to be valid, the installations in a certified aircraft must be accomplished by an FAA-certified avionics shop and authorized PS Engineering dealer. If the unit is being installed by a non-certified individual in an experimental aircraft, a factory-made harness must be used for the warranty to be valid.

PS Engineering, Inc. warrants this product to be free from defect in material and workmanship for a period of one year from the date of sale. During this oneyear warranty period, PS Engineering, Inc., at its option, will send a replacement unit at our expense if the unit should be determined to be defective after consultation with a factory technician.

This warranty is not transferable. Any implied warranties expire at the expiration date of this warranty. PS Engineering SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. This warranty does not cover a defect that has resulted from improper or unreasonable use or maintenance as determined by us. This warranty is void if there is any attempt to dissemble this product without factory authorization. This warranty gives you specific legal rights, and you may also have other rights, which may vary from state to state. Some states do not allow the exclusion of limitation of incidental or consequential damages, so the above limitation or exclusions may not apply to you.

200-193-0005 Rev. 8, Nov. 2013

Page 7

4.2 Factory Service

The PM3000 is covered by a one-year limited war-

ranty. See warranty information.

Call PS Engineering, Inc. at (865) 988-9800 before you return the unit. This will allow the service technician to provide any other suggestions for identifying the problem and recommend possible solutions.

Information is also available by visiting www.psengineering.com/support.shtml

Units that arrive for repair without a method of payment will be returned via UPS COD.

After discussing the problem with the technician and you obtain a Return Authorization Number, ship product to:

NOTE: PS engineering will not be responsible for any units sent by US Mail.

PS Engineering, Inc. Service Department 9800 Martel Road Lenoir City, TN 37772 (865) 988-9800 FAX (865) 988-6619

Appendix A — PTT Modifications

When received from the manufacturer, an aftermarket PTT switch opens the mic audio path to the "ring" connection of the PTT mic plug. When the PTT is between the intercom and the headset, the intercom function will not work until the PTT switch is depressed. A simple modification can be performed to allow proper intercom operation. NOTE: This mod does not alter normal operation. Modified portable PTT switches are available from PS Engineering. Call 1-800-ICS-AERO to order.

Interface to existing aircraft radios in accordance with manufacturer’s installation manual and in

compliance with practices listed in AC43.13-2B,

Chapter 2. All wires are Mil-Spec 22759 or

27500. No connection to the aircraft dimmer bus is required. Power is supplied to the unit through a 1A circuit breaker (type and part number total electrical load does not exceed % of the electrical system capacity with the PM3000 added.

Aircraft equipment list, weight and balance amended. Compass compensation checked. A copy of the operation instructions, contained in PS

Engineering document 202-193-xxxx, revision (x), (date) , is placed in the aircraft records. All work

accomplished listed on Work Order .

), and

Appendix C, Instructions for continuing airworthiness

The PM3000 is considered an “on-condition” mainte-

nance item. It is checked prior to each flight during normal operation. There are no additional considerations for continuing airworthiness other than the practices detailed in AC 43.13-1B, Chapter 11. This includes inspecting the unit to be sure it is securely fastened in its location, and that the wiring harness is not chafed or pinched, and remains secure. All panel jacks should be checked at each periodic inspection to ensure that they are tight and not in contact with other items behind the instrument panel.

Appendix B- Instructions for FAA Form 337

One method of airworthiness approval is through

an FAA Form 337, Major Repair and Alteration (Airframe, Powerplant, Propeller, or Appliance)

In the case of the PM3000, you may use the following text as a guide.

Installed x-place intercom, PS Engineering PM3000, part number 1193(_) in ( location )

station .

stalled per PS Engineering Installation Operators Manual p/n 200-193-xxxx, revision x, dated ( ).

This unit is FAA-Approved under TSO C50c for audio amplifiers, and meets environmental tests outlined in RTCA DO-160C as appropriate or this aircraft.

Installed per AC43.13-2B, In-

Optional 2 ¼” Mounting Plate without crew –575-030-0007 Optional 2 ¼” Mounting Plate with crew 575-030-0005 (shown)

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200-193-0005 Rev. 8, Nov. 2013

Appendix D– Wiring Information

DB 25 Unit Connectors

12345

14 15 16 17 18

Ground

Pass 2 Mic Hi

Copilot Mic Hi

Pass 1 Mic Hi

A/C Radio Input

Lighting Control

Copilot PTT

Unswitched Input 2

Unswitched Input 1

12345

14 15 16 17 18

6789

19 20 21 221023 24

Pilot PTT

Music Lo

Pass 1 Audio (R)

Pass 2 Phones (R)

Pass 2 Phones (L)

Pilot Phones (R)

Copilot Phones (R)

Pass 1 Audio (L)

Pilot Phones (L)

Copilot Phones (L)

6789

19 20 21 221023 24

11 122513

Music Input (R)

A/C Radio PTT

Music Input (L)

Power (11-33 VDC)

Pilot Mic Audio Hi

A/C Mic Audio Hi

11 122513

Ground

200-193-0005 Rev. 8, Nov. 2013

Pilot PTT

Pass 2 Mic Hi

Copilot Mic Hi

Copilot PTT

Pass 1 Mic Hi

A/C Radio Input

Pass 4 Mic Hi

Pass 3 Mic Hi

Music Input 2 (R)

Pass 2&4 Phones (R)

Music Input 2 (L)

Pass 2&4 Phones (L)

Pilot Phones (R)

Copilot Phones (R)

Pass 1&3 Audio (R)

Pass 1&3 Audio (L)

Pilot Phones (L)

Copilot Phones (L)

A/C Radio PTT

Music Input 1 (R)

Music Input 1 (L)

Pilot Mic Audio Hi

Recorder Playback Connection (11933A, 19934)

Page 9

Power (11-33 VDC)

A/C Mic Audio Hi

PM3000 (11932, 11934) w/Crew, 6-place wiring diagram

PM3000 Sub-D DB-25 Male

Power In Ground

A/C Radio Phone Audio Hi A/C Radio Phone Audio Lo

A/C PTT A/C Mic Audio Hi A/C Mic Audio Lo

Pilot Phones (L) Pilot Phones (R) Pilot Phones Lo

1 14

12 25

22 9

To Aircraft Radio Phone Audio Hi

AUX Headphone Jack

To Aircraft Radio Phone Low

Pilot Headphone Jack

11-33 VDC13

Aux Mic Jack

Aircraft Radio PTT

To Aircraft Radio Mic Audio Lo

To A/C Radio Mic Audio Hi

Copilot Phone Audio (L) Copilot Phone Audio (R) Copilot Phone Audio Lo

Pass 1 & 3 Phone Audio (L) Pass 1 & 3 Phone Audio (R) Pass 1 Phone Audio Lo

Pass 2 & 4 Phones Audio (L) Pass 2 & 4 Phones Audio (R) Pass Phones Audio Lo

Pass 1 Mic Audio Hi Pass 1 Mic Audio Lo

Pass 2 Mic Audio Hi Pass 2 Mic Audio Lo

Copilot Mic PTT Copilot Mic Audio Hi Mic Audio Lo

Pass 3 Mic Audio Hi Pass 3 Mic Audio Lo

Pass 4 Mic Audio Hi Pass 4 Mic Audio Lo

Pilot Mic PTT Pilot Mic Audio Hi Pilot Mic Audio Lo

Music #1 (L) Music #1 (R)

19 6

10 23

21 8

20 7

16 3

24 11

Copilot Headphone Jack

Passenger 1 Headphone

Passenger 2 Headphone

Pass 1 Mic

Pass 2 Mic

Pilot Mic Jack

Entertainment #1 Input

SEE NOTE 6

Copilot Mic Jack

Pass 3 Mic

Pass 4 Mic

Pilot PTT

Passenger 3 Headphone

Passenger 4 Headphone

Copilot PTT

SEE NOTE 6

Music #2 (L) Music #2 (R)

Notes:

1. All wire must conform to MIL-22759 or 27500. Minimum 24 gage shielded wire.

2. Use 2-, and 3-, conductor with shield as indicated.

3. Use insulating washers on all jacks. Jacks must be electrically floating.

4. Connect shields at intercom end only

5. AUX headphone and microphone jacks are required.

6. For 11931 and 11933, do not connect passenger 3 & 4, or Music 2 inputs.

17 4

Page 10

Entertainment #2 Input

SEE NOTE 6

200-193-0005 Rev. 8, Nov. 2013

PM3000 (11931A& 11933A) 4-Place Standard Intercom (Without Crew) Wiring Diagram

PM3000 Sub-D DB-25 Male on unit

Power In Ground

A/C Radio Phone Audio Hi A/C Radio Phone Audio Lo

A/C PTT A/C Mic Audio Hi A/C Mic Audio Lo

Pilot Phones (L) Pilot Phones (R) Pilot Phones Lo

Copilot Phone Audio (L) Copilot Phone Audio (R) Copilot Phone Audio Lo

Pass 1 Phone Audio (L) Pass 1 Phone Audio (R) Pass 1 Phone Audio Lo

Pass 2 Phones Audio (L) Pass 2 Phones Audio (R) Pass Phones Audio Lo

1 14

12 25

22 9

21 8

20 7

19 6

To Aircraft Radio

Phone Audio Hi AUX Headphone Jack

To Aircraft Radio Phone Low

Aux Mic Jack

Pilot Headphone Jack

Copilot Headphone Jack

Passenger 1 Headphone

Passenger 2 Headphone

11-33 VDC13

Aircraft Radio PTT

To Aircraft Radio Mic Audio Lo

To A/C Radio Mic Audio Hi

n e i

o t

(

)

Pass 1 Mic Audio Hi Pass 1 Mic Audio Lo

Pass 2 Mic Audio Hi Pass 2 Mic Audio Lo

Copilot Mic PTT Copilot Mic Audio Hi Mic Audio Lo

Pilot Mic PTT Pilot Mic Audio Hi Pilot Mic Audio Lo

Music (L) Music (R) Music Lo

Unswitched Audio 1

Unswitched Audio 2

Lighting control

16 3

10 23

24 11 18

Pass 1 Mic

Pass 2 Mic

Copilot Mic Jack

Copilot PTT

Pilot Mic Jack

Pilot PTT

Entertainment Input

See note 8

Unswitched

See note 6

Audio 1

Unswitched Audio 2

Dimmer Connection (14/28V)

Note 9: CONNECTIONS FOR P/N 11931A & 11933A ONLY

See Note 7

200-193-0005 Rev. 8, Nov. 2013

Page 11

RTCA DO-160C Environmental Qualification: Form Nomenclature: Intercom, stereo, panel mounted

Unit Type: PM3000 Part Number: 11932 FAA TSO Number: C50c

Manufacturer: PS Engineering Incorporated 9800 Martel Road Lenoir City TN 37772

Conditions Section Conducted Tests Temperature and Altitude

Low Temperature High Temperature In-flight Loss of Cooling Altitude Decompression Overpressure

Temperature variation

4.0

4.5.1

4.5.2

4.5.4

4.6.1

4.6.2

4.6.3

5.2 Equipment tested to Category C

Equipment tested to CAT A1 &

-20° C Storage, -15°C Low Operating

+85°C Storage, +70°C High Op-

erating

Not Applicable, no cooling re-

quired

Humidity

Shock

Operational

Crash Safety

Vibration

Explosion

Waterproofness

Fluids Susceptibility

Sand and Dust

Fungus

Salt Spray

Magnetic Effect

Power input

Voltage Spike

Audio Frequency Susceptibility

6.0 Equipment tested to Category A

7.0 Equipment tested to Operational

7.2 Equipment tested to Operational

7.3 Equipment tested to Operational

8.0 Equipment tested to Category M

9.0 Category X, not tested

10.0 Category X, not tested

11.0 Category X, not tested

12.0 Category X, not tested

13.0 Category X, not tested

14.0 Category X, not tested

15.0 Equipment tested to Category Z

16.0 Equipment tested to Category B

17.0 Equipment tested to Category B

18.0 Equipment tested to Category B

Induced Frequency Susceptibility

Radio Frequency Susceptibility

Radio Frequency Emission

Lightning Induced Transient Susceptibility

Lightning Direct Effects

Icing

Page 12

19.0 Equipment tested to Category B

20.0 Equipment tested to Category J

21.0 Equipment tested to Category B

22.0 Equipment tested to Category K

23.0 Category X, not tested

24.0 Category X, not tested

200-193-0005 Rev. 8, Nov. 2013

PS Engineering PM3000 11931A, PM3000 11932, PM3000 11933A, PM3000 11934 Operation And Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual