Northern Airborne Technology CC250 User Manual
Installation and Operation Manual
CC450-0V2
Communications Controller
SM16
ISSUE 1.11
Northern Airborne Technology Ltd.
1925 Kirschner Road
Kelowna, BC, Canada.
V1Y 4N7
Telephone (250) 763-2232
Facsimile (250) 762-3374
Issued on the authority of Northern Airborne Technology Ltd.
Copyright 1994
CC450-0V2 Communications Controller
Installation and Operation Manual
Prepared By: Checked By: Approved By:
The status of this installation and operation manual is controlled by issue shown on the title page. The
status of each section is controlled by revision shown in the footer of each page. All revisions affecting
sections of this manual have been incorporated into the latest issue.
ISSUE/REVISION RECORD
Manual Issue
Number
1.10 N/A N/A Mar 25, 1994
Section
Revision Number
Revision Description Issue Date
1.11 Section 1 Rev:1.00
Section 2 Rev:1.00
Section 3 Rev:1.00
Manual reformatted and updated Feb 11, 2008
Installation and Operation Manual Page ii
ENG-FORM: 820-0113.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
CC450-0V2 Communications Controller
Installation and Operation Manual
Table of Contents
Installation and Operation
Section Title Page
1 Description
1.1 Introduction ............................................................................................1-1
1.1 Introduction ............................................................................................1-1
1.2 General Information ...............................................................................1-1
1.3 Design Features..................................................................................... 1-1
1.4 Specifications.........................................................................................1-2
1.4.1 Electrical Specifications...................................................................1-2
1.4.2 Physical Specifications .................................................................... 1-2
1.4.3 Environmental Specifications ..........................................................1-2
1.5 Unit Nomenclature .................................................................................1-2
1.5.1 Number of Radios (
1.5.2 Panel Lighting (
1.5.3 Installed Options (
1.5.4 Model Number (
1.5.5 Models Available .............................................................................1-3
2 Installation
2.1 Introduction ............................................................................................2-1
2.2 Unpacking and Inspection......................................................................2-1
2.2.1 Warranty ..........................................................................................2-1
2.3 Continued Airworthiness ........................................................................ 2-1
2.4 Installation Procedures ..........................................................................2-1
2.4.1 Warnings..........................................................................................2-1
2.4.2 Cautions...........................................................................................2-2
2.4.3 Cabling and Wiring ..........................................................................2-2
2.4.4 Post-Installation Checks .................................................................. 2-3
2.4.5 Mechanical Mounting.......................................................................2-4
2.5 Adjustments and Connections ...............................................................2-4
2.5.1 Squelch Logic Threshold Adjustments ............................................ 2-4
2.5.2 Squelch VOX level Adjustments...................................................... 2-5
2.6 Squelch VOX Circuitry and Jumper Settings .........................................2-6
2.6.1 Cover Removal................................................................................2-6
2.6.2 Squelch Disable Logic Polarity Jumpers.........................................2-6
2.6.3 Receive Audio VOX Squelch Circuit Jumpers.................................2-7
2.6.4 Jumper JP101 .................................................................................2-8
2.6.5 Final Checks....................................................................................2-8
2.7 Accessories Required But Not Supplied................................................2-8
2.8 Installation Drawings..............................................................................2-9
n)......................................................................1-3
p) ............................................................................ 1-3
i) .........................................................................1-3
x) ...........................................................................1-3
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ENG-FORM: 820-0113.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
CC450-0V2 Communications Controller
Installation and Operation Manual
Section Title Page
3 Operation
3.1 Introduction ............................................................................................3-1
3.2 General Information ...............................................................................3-1
3.3 Controls and Indicators .......................................................................... 3-1
3.3.1 Power Switch...................................................................................3-1
3.3.2 Transceiver Controls .......................................................................3-2
3.3.3 Mode Selection Switch ....................................................................3-2
3.4 Alert Tones............................................................................................. 3-3
3.5 Voice Store and Retransmit (VSR) [OPTIONAL]................................... 3-3
3.6 System Use............................................................................................ 3-4
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ENG-FORM: 820-0113.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
CC450-0V2 Communications Controller
Installation and Operation Manual
Section 1 Description
1.1 Introduction
This manual contains information on the CC450-0V2 Communications Controllers. All derivative product
information shall be contained in the applicable manual supplement, which may be obtained from NAT as
required.
Information in this section consists of purpose of equipment, features and specifications. Review all
notes, warnings and cautions.
1.2 General Information
The CC450-0V2 is a compact, easy to install communications controller. It is designed to provide RELAY
and/or SIMULCAST operation for up to 4 transceivers. With these functions, the aircraft can become an
airborne repeater or a multi-frequency transmitting platform. When used to its potential, the CC450-0V2
provides increased efficiency and reduced workload for communication operations.
The CC450-0V2 Communications Controllers were designed to meet the requirement for expanded
operation of aircraft communications systems. Its modes of operation are: RELAY, SIMULCAST or
BOTH. All controllers are available with a Voice Store and Retransmit (VSR) option to increase single
radio capability.
RELAY operation is used when transmissions from one party must be re-transmitted from the aircraft to
reach groups on different frequencies or frequency bands, and when line-of-sight transmissions are not
possible.
SIMULCAST operation is used when a single transmission must reach groups operating on different
frequencies or frequency bands.
BOTH operation includes both RELAY and SIMULCAST functions, with priority given to the SIMULCAST mode.
Voice Store and Retransmit operation is used when two parties are unable to communicate directly due to
obstacles or distances that affect the transmission path. The transmission from one party is stored and
then retransmitted on the same channel to the other party.
1.3 Design Features
The CC450-0V2 requires only 0.75" of panel space and is available with +5 or +28Vdc panel lighting.
All audio inputs and outputs are transformer-coupled to provide full isolation from the existing audio
system. Bi-coloured annunciators on the front panel illuminate to indicate a RX or TX condition for each radio.
The Controller generates alert tones at the beginning and end of each transmission to indicate to the
operator that the CC450-0V2 is active.
In-band Voice Store and Retransmit option allows RELAY operation on one transceiver. This is
accomplished by storing RX audio (up to 16 seconds for the -xx1, or 60 seconds for the -xx2) in the
controller and then retransmitting the message out on the same radio.
Voice Activated Squelch Disable (squelch VOX) is provided for interfacing transceivers without a Squelch
Disable Output (only available on RT1 and RT2 for –xx1 models).
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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
CC450-0V2 Communications Controller
Installation and Operation Manual
1.4 Specifications
1.4.1 Electrical Specifications
Input power +28 Vdc
Supply Current 600 mAdc (Max)
Lights Current 80 mAdc (Max) @ +28 Vdc
400 mAdc (Max) @ +5 Vdc
Inputs (Each RT) MIC HI, MIC LO, PTT, RX AUDIO HI and LO,
SQUELCH DISABLE
Outputs (Each RT) MIC HI, MIC LO, PTT
Serial Ports One Serial Port (RS232)
Annunciators: Power On - Green
RT1 to RT4 Status - Green (TX) I Orange (RX)
1.4.2 Physical Specifications
Height 0.74" (18.8 mm)
Depth behind panel 6.24" (158.5 mm) excluding connectors
Width 5.75" (146.1 mm)
Weight 1.1Ib (500 g)
Connectors One Male 37-Pin Dmin
One Male 15-Pin Dmin
Dummy Plug (Included in install kit) One Male 37-Pin Dmin
Mounting Panel Mount using 2 Dzus Fasteners
1.4.3 Environmental Specifications
Operating Temperature -40°C to + 70°C
Storage Temperature -55°C to + 85°C
Altitude 25,000 feet
Humidity 95% Non-condensing
1.5 Unit Nomenclature
Variants of the CC450 series Communications Controller are identified as follows:
CCn50-pix
x = Other Options
n = Number of Radios
p = Panel Lighting
i = Installed Options
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CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
CC450-0V2 Communications Controller
Installation and Operation Manual
1.5.1 Number of Radios (n)
The digit immediately after the CC identifier indicates the number of radios that can be controlled by the unit.
2 = Two-Transceiver Model (No longer in production)
4 = Four-Transceiver Model
1.5.2 Panel Lighting (
p)
The digit in the first position of the unit suffix indicates the panel lighting voltage.
0 = +28 Vdc Lights
5 = +5 Vdc Lights
7 = +28 Vdc NVG Compatible Lights
Note: NVG compatible lighting may be available. Contact NAT for more information.
1.5.3 Installed Options (
i)
The digit in the second position of the unit suffix indicates any installed options.
0 = No Options
V = With Voice Storage Option
1.5.4 Model Number (x)
The digit in the third position of the unit suffix indicates the model number.
1 = 16 seconds of RX Audio stored
2 = 60 seconds of RX Audio stored
1.5.5 Models Available
Some of the models currently available are as follows:
CC450-001 Four-transceiver model, 16 seconds Voice Storage, +28 Vdc panel lighting
CC450-0V1 Four-transceiver model, 16 seconds Voice Storage, +28 Vdc panel lighting
CC450-0V2 Standard Four-transceiver model, 60 seconds Voice Storage, +28 Vdc panel lighting
CC450-5V2N Four-transceiver model, 60 seconds Voice Storage, +5 Vdc NVG suitable panel lighting
CC450-7V2 Four-transceiver model, 60 seconds Voice Storage, +28 Vdc NVG compatible panel lighting
Section 1 ends
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Installation and Operation Manual
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CC450-0V2 Communications Controller
Installation and Operation Manual
Section 2 Installation
2.1 Introduction
Information in this section consists of unpacking and inspection procedures, installation procedures, postinstallation checks and installation drawings. Review all notes, warnings and cautions before installation.
2.2 Unpacking and Inspection
Unpack the equipment carefully and locate the warranty card. Inspect the unit visually for damage due to
shipping and report all such claims immediately to the carrier involved. Check that all items listed below
are present before proceeding and report any shortage immediately to your supplier:
- Warranty Card
- Operators Manual
- Certificate of Conformity or Release Certification
2.2.1 Warranty
Complete the warranty card information and send it to NAT Ltd. when installation is complete. If you fail
to complete the warranty card, the warranty will be activated on shipment date from NAT Ltd.
Note: An appropriately rated facility, e.g. Certified Aircraft Repair Station, shall install this
equipment in accordance with applicable regulations. NAT Ltd’s. warranty is not valid unless
an authorized NAT Ltd. Dealer installs the equipment. Failure to follow any of the installation
instructions, or installation by a non-certified individual or agency will void the warranty, and
may result in a non-airworthy installation.
2.3 Continued Airworthiness
Maintenance of the CC450-0V2 Communications Controller is ‘on condition’ only. Periodic maintenance
of this product is not required.
2.4 Installation Procedures
2.4.1 Warnings
WARNING:
High volume settings can cause hearing damage.
Set the headset volume control to the minimum volume setting prior to
conducting audio tests, and slowly increase the headset volume to a
comfortable listening level.
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2.4.2 Cautions
Do not bundle any lines from this unit with transmitter coax lines. Do not
bundle any logic, audio, or DC power lines from this unit with 400 Hz synchro
wiring or AC power lines. Do not position this unit next to any device with a
strong alternating magnetic field, such as an inverter, or significant
audio interference will result. In all installations, use shielded cable exactly
as shown and ground as indicated. Significant problems may result from not
following these guidelines.
Microphone signals run through the CC450-0V2 unit. If the controller is
removed, a Dummy Plug (included with the Installation kit) must be installed
on the harness plug P101. Failure to install the Dummy Plug will prevent
transmitting from all transceivers connected to the CC450.
Ensure proper antenna ground plane and sufficient antenna spacing between
transceivers that will be used in RELAY operation. If enough power is
transmitted from an adjacent antenna to the receiving transceiver's antenna, the
receiver may stop functioning. Spurious receiver responses from transceivers
with weak front ends, such as handheld units, will also be minimized with proper
ground plane and antenna spacing.
CC450-0V2 Communications Controller
Installation and Operation Manual
CAUTION:
CAUTION:
CAUTION:
2.4.3 Cabling and Wiring
All wire shall be selected in accordance with the original aircraft manufacturer's Maintenance Instructions
or AC43.13-1B Change 1, Paragraphs 11-76 through 11-78. Unshielded wire types shall qualify to
MIL-W-22759 as specified in AC43.13-1B Change 1, Paragraphs 11-85, 11-86, and listed in Table 11-11.
For shielded wire applications, use Tefzel MIL-C-27500 shielded wire with solder sleeves (for shield
terminations) to make the most compact and easily terminated interconnect. Follow the connector map in
Section 2.7 as required.
Coaxial cable shall be selected in accordance with MIL-C-17 unless otherwise specified. Do not use coax
cable with PVC insulation. Teflon dielectric cable is encouraged at or above VHF frequencies or where
cable runs exceed 8 feet. Note that at VHF frequencies, cables losses due to long cable runs and tight
bends may reduce the ERP (Equivalent Radiated Power) by greater than 50%.
Allow 3" from the end of the shielded wiring to the shield termination to allow the connector hood to be
easily installed. Reference the interconnect drawing in Section 2.7 for shield termination details. Note
that the hood is a "clamshell" hood, and is installed after the wiring is complete. Aircraft harnessing shall
permit the unit to be lowered from the panel for easy access to all side adjustments. Do NOT mount the
unit until all adjustments have been performed.
Maintain wire segregation and route wiring in accordance with the original aircraft manufacturers
Maintenance Instructions. Coaxial cables shall be routed separately from existing wire bundles in the
aircraft to minimize electromagnetic coupling effects.
Unless otherwise noted, all wiring shall be a minimum of 22 AWG, except power and ground lines, which
shall be a minimum of 20 AWG. Check that the ground connection is clean and well secured, and that it
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CC450-0V2 Communications Controller
Installation and Operation Manual
shares no path with any electrically noisy aircraft accessories such as blowers, turn and bank instruments
or similar loads. Power to this unit must be supplied from a separate circuit breaker or fuse (fast blow),
and not attached to any other circuit breaker without additional protection. Verify that the selected circuit
breaker size and wire gauge are adequate for the installation using the techniques specified in
AC41.13-1B Change 1, Paragraphs 11-47 through 11-51 and 11-66 through 11-69.
Microphone signals run through the CC450-0V2 unit. If the controller is removed, a Dummy Plug
(included with the Installation kit) must be installed on the harness plug P101. Failure to install the
Dummy Plug will prevent transmitting from all transceivers connected to the CC450.
Ensure proper antenna ground plane and sufficient antenna spacing between transceivers that will be used
in RELAY operation. If enough power is transmitted from an adjacent antenna to the receiving transceiver's
antenna, the receiver may stop functioning. Spurious receiver responses from transceivers with weak front
ends, such as handheld units, will also be minimized with proper ground plane and antenna spacing.
2.4.4 Post-Installation Checks
2.4.4.1 Voltage/Resistance Checks
Do not attach the CC450-0V2 until the following conditions are met.
Check the following:
a) P101 pin <18> for appropriate lights voltage.
b) P101 pin <19> for +28 Vdc relative to ground.
b) P101 pins <4>, <8>, <12>, <23>, <27>, and <31> for shield ground (below 0.5 Ω).
c) P101 pins <35>, <36> and <37> for continuity to ground (less than 0.5 Ω).
d) P102 pin <14> for chassis ground (less than 0.5 Ω).
2.4.4.2 Power On Checks
Power up the aircraft’s systems and confirm normal operation of all functions of the CC450. Refer to
Section 3 (Operation) for specific operational details.
WARNING:
High volume settings can cause hearing damage.
Set the headset volume control to the minimum volume setting prior to
conducting audio tests and slowly increase the headset volume to a
comfortable listening level.
Upon satisfactory completion of all performance checks, make all required log book entries, electrical
load, weight and balance amendments and other documentation as required by your local regulatory
agency before releasing the aircraft for service.
Section 2 Rev: 1.00 Issue 1 Page 2-3
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CC450-0V2 Communications Controller
Installation and Operation Manual
2.4.5 Mechanical Mounting
The CC450-0V2 requires a standard Dzus rail assembly with an opening width of 5.0” and a front
clearance width of 5.75”. The height requirement is 0.75”. Be sure that adequate clearance is allowed for
the cable connections at the rear of the unit.
Note: Ensure that proper mechanical support is provided under the chassis. Due to the shallow profile of
the unit, the Dzus fasteners should not be relied upon for complete mechanical support. NAT Ltd
recommends that it should be mounted above another unit, such as a control head, to provide
better mechanical support.
2.5 Adjustments and Connections
CAUTION
Incorrect setting of these adjustments may cause improper operation of
the CC450-0V2 during relay operations.
These adjustments have been factory set to operate correctly with NAT NT-Series, NTX-Series, NPXSeries and NCT-Series, Wulfsberg Flexcomm, and Wulfsberg RT9600/7200 transceivers. For any
other manufacturer's radios, consult NAT Ltd.
2.5.1 Squelch Logic Threshold Adjustments
The Squelch Logic Threshold settings control the voltage at which the CC450-0V2 recognizes that the
Squelch Disable line has gone active (the transceiver is receiving). It is normally set to 1.0 Vdc Active Lo
or grounded signal.
2.5.1.1 'Active Lo' Squelch Disable
a) Put all the CC450-0V2 Transceiver Select switches in the down (inactive) position.
b) Power up the CC450-0V2 by putting the Power switch in the up (ON) position
c) Turn the Squelch Logic Threshold Adjustment fully counterclockwise (ccw).
d) Slowly turn the adjustment clockwise (cw) until the stops are reached or the RX/TX annunciator on
the CC450-0V2 lights ORANGE.
e) Take note of the adjustment position
f) While depressing the Squelch Test button for the respective transceiver, rotate the adjustment ccw until
the stops are reached or the RX/TX annunciator goes out.
g) Take note of the adjustment position
h) Release the Squelch Test button.
i) Position the adjustment half way between the positions reached in steps e) and g).
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