Installation Manual Part 1

FCC ID: CDG-ARTU

MAGNASTAR

EXHIBITC

C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM

Measure cable RF loss at 900 MHz if test equipment is available.

Note: The total RF cable path loss from the ARTU to the ANTENNA should not exceed 3 dB. The two

different RF paths include the combination of the Antenna and Receive cables or the Antenna and

Transmit cables. The lengths of the RF cables are limited by this requirement.

Aircraft Power Cable

Prior to installation of the ARTU. verify the power cable installation for proper interconnection and correct

voltages. Calculate the voltage drop based on wire gauge and rated system current. Required check list

for this cable is:

POWER CABLE CHECK LIST

a) Visually inspect cable for bent or damaged pins.

b) Continuity check for proper pin-to-pin interconnection between cable connectors.

c) Check for open circuit condition between each pin and the back shell.

d) Check for open circuit condition between each pin and all other connector pins.

e) Apply aircraft power to the Power Cable. Check for correct voltage on the proper pins.

f) Check for ground connection on the proper pins.

g) Check for the absence of ground or aircraft power on all other connector pins.

RJ-11 Cables

Prior to installation of a FAX or Modem to a Handset. check the RJ-11 cable for proper interconnection. A

required check list for this cable is:

a) Visually inspect cable for bent or damaged pins.

b) Continuity check for proper pin-to-pin interconnection between cable connectors.

c) Check for open circuit condition between each pin and all other connector pins.

MagnaStar Maintenance Terminal (MMT Cable)

Note: Do not permanently connect the MMT cable to the ARTU. This connector port is for

checkout and troubleshooting only. For normal operation, disconnect the MMT cable and replace

the dust cover on the ARTU MMT connector.

With the MMT cable connected. after power up. the ARTU will not start running its operational software

until instructed to do so by the MMT unit.

4.3

Connector Kit Drawings

The connector kit drawings provide detailed instructions for constructing the interface cabling using the

parts provided with an individual unit in the connector kit. The connector kit drawings are shipped with

each unit and are provided in the installation manual for reference. The connector kit drawings included

in the installation manual are as follows:

744434 - TMU Connector Kit. use:

ARTU Connector Kit Drawing - 744319

743425 - AIU Connector Kit Drawing

744319 - ARTU Connector Kit Drawing

744321 - CDBR-1 Connector Kit Drawing

744428 - CDBR-2 Connector Kit Drawing

4-2

ReYB