SM57 Rev. 4.10
DA80 Series DigiVOX™ Digital Intercom Manual
2.3.4
Cabling and Wiring
All unshielded wire should be Tefzel MIL-M-22759 or equivalent. 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
wiring diagrams in Section 2.6 as required.
Group the mic audio shields
separately from all other audio
shields.
Utilizing Raychem solder sleeves,
create up to 6 shield pigtails in the
wiring harness, as shown in the
Interconnect
Diagram
(DA80\
xxx
\403-0, Rev 1.00 or
higher, where
xxx
represents the
model of the unit under
consideration). Each pigtail
should be no more than 3.0" long.
Bring the pigtails through the
rubber grommet and strip off 0.5"
of insulation.
Bend the stripped portion back
onto the grommet as shown and
sandwich the pigtails between the
connector hood and the grommet.
Raychem
Solder Sleeves
Rubber
Grommet
Stripped
Pigtail
Metal Hood
Note
: The hood is a ‘two-piece’ unit, and is assembled after the wiring is complete.
All wiring should be at least 24 AWG, except power and ground lines, which should be
at least 20 AWG. Ensure that all ground connections are clean and well secured.
To prevent system failure or inadequate equipment protection, supply power from a
dedicated 2.0 A circuit breaker.
Oct 13, 2004
Page 2-3
ENG-FORM: 805-0104.DOT
PROPRIETARY AND CONFIDENTIAL TO NORTHERN AIRBORNE TECHNOLOGY LTD.
