

Dimensions in Inches (millimeters) are subject to change without notice.

SERIES 390

BacNav™ OFS

Assembly Instructions

SERIES 390

BacNav™ OFS

Assembly Instructions

3/8" ±1/8" (Electrical)

1/2" ±1/8" (Fiber-optic)

Calculate Length

For Contact

Termination

To Rear Of

Connector Shell

Connector-coupling-nut

Engagement Length

Main Body Assembly

Overall Length

Eective Main Body

Assembly Length

Connector

Length

The Following suggested assembly procedure serves as a guide for proper assembly and installation of Glenair P/N 390G084

Compression-nut and

Gland-nut Assembly

Main Body

Assembly

Loosen with 7/64” Hex-Wrench

to Reposition Angle

O-ring

(If Applicable)

Insert-retainer

(If Applicable)

Braid/Kevlar® Folded

Back Flat Over Cable

Tape

Contacts/OFC's

Step 1

Cut cable to desired length, making sure to include contact

termination length and desired service loop length (Note:

service loop not applicable for ber termination.)

Step 2

Slide BacNav OFS backshell assembly onto cable-end being

terminated. Slide insert-retainer and o-ring or adapter (as

applicable) onto cable following the backshell. (Note: Adapter

may be coupled to backshell.) Unscrew and separate intermediate

compression nut and gland assembly from main body assembly.

(See gure 1)

Step 3

Prepare cable end for termination.

a. Determine cable jacket strip length. For precise

determination, it is recommended to terminate a connector

using a minimum strip length, then mark the cable jacket

at the required distance behind the main body assembly.

Length will include contact termination length, desired

service loop length (not applicable for ber) and eective

main body assembly length (includes installed adapter

length if present). (See gure 2)

b. Remove outer cable jacket exposing cable-shield (braid) or

Kevlar® strength members (ber-optic applications).

Shielded electrical cable applications: Remove any water-

block material from cable-shield. Trim cable shield to 3-4

inch length (optional) then fold back at over outer cable

jacket and tape down.

Fiber-optic applications: Leave Kevlar® strength members

long, fold back over outer cable jacket and tape down

(See gure 3)

Step 4

Prepare conductor/bers and terminate contacts/OFCs according

to specic connector requirements.

Step 5

Insert contacts/OFCs into connector according to specic connector

requirements.

Step 6

Move backshell main body assembly (with adapter if present,

or insert-retainer/o-ring if present) towards cable end to mate

with connector. Position insert-retainer and o-ring if applicable,

then thread backshell/adapter-to-connector coupling nut onto

connector ensuring proper alignment/orientation with respect

to connector master-key, and verifying proper engagement of

clocking teeth or splines as the coupling nut is hand tightened.

(See Figure 4)

Step 7

Verify cable jacket strip length, and terminate cable-shield/

Kevlar® strength members. (Refer to banding tool instructions for

additional details).

Shielded electrical cable applications: End of cable jacket should

measure " ± " from conical end of main backshell body assembly

to cable jacket (with service loop length contained inside backshell).

(See gure 2) Un-tape cable-shield and fold forward over conical

end and banding platform, ensuring even 360° distribution.

Prepare termination-band and installation tool, positioning

over shield in the center of the banding platform. (See gure 5)

Complete band termination, ensuring cable jacket end remains

” ± ” from conical end of main backshell body. (See gure 6)

Fig. 4

Fig. 6

Fig. 5

Assembly Overview

Fig. 1

Fig. 2

Fig. 3



Dimensions in Inches (millimeters) are subject to change without notice.

Mil-Spec Connectors and Components Aimed at

Reducing Downtime and Improving Performance

Glenair innovations in composite thermoplastic materials and unique

backshell assemblies, optimize shield termination performance

SUPERSEAL™ RJ45 CONNECTORS

• Superior sealing—IP68 when mated—for complete

system protection against water, sand and dust

• Shielded/grounded coupler designs in both receptacle

and plug connectors

• Crimp, solder-cup, PC tail, and Quadrax contact/wire

termination options

• RJ45 plug and/or jack interface options available in

Cat 5e or Cat 6a in D38999, D5015 and D26482 type

packages

• Series 970 contacts are

precision-machined using

high conductivity copper

alloy.

• Stamped and formed spring

(“Louverband”) installed

into socket contact.

• Spring is made from 6 mil beryllium copper (BeCu).

• Louverband spring provides many points of electrical

contact with the mating pin

• Testing shows, Louverband contact system outperforms

conventional aerospace-grade contact systems.

Metal and composite solutions

Glenair is the world leader in the supply of shield termination

backshell technology to the aerospace industry. Our expertise

extends from conventional conductive metal-shell solutions to

innovative lightweight composite solutions such as the Swing-

Arm with its integrated EMI/RFI shield sock or special Do-Drop-

In insert.

POWERTRIP™ CONNECTORS

EMI/RFI SHIELD TERMINATION COMPONENTS

Band-Master™ ATS provides quick, easy,

cost-effective and reliable termination

of metallic shielding or fabric braid to

connectors and backshells.

 Precision hand-held tool and bands deliver reliable,

repeatable performance

 Single piece stainless steel bands in various sizes

and lengths

 Clamp both small and large diameters easily and

reliably

 Pneumatic banding tool for high-speed mass

production

 Qualified for both military and commercial aviation

Band-Master® ATS, Band

SERIES 390

BacNav™ OFS

Assembly Instructions

Fiber-optic applications: End of cable jacket should measure

½” ± ” with ber-optic conductors pulled taught (See gure 2).

Un-tape Kevlar® strength members and fold forward over conical

end and banding platform, ensuring even 360º distribution.

Prepare termination-band and installation tool, positioning over

cable jacket. Ensuring bers are pulled taught, remove all slack

from Kevlar® strength members as they are dressed forward

over the main backshell body intermediate compression-nut

threads. Holding Kevlar® strength members tightly around the main

backshell body intermediate compression-nut threads, move band

and tool into position over banding platform (See gure 7). Tighten

termination band allowing the Kevlar® to pull the cable jacket end

towards the conical end of main backshell body a minimum of ¼”

when the band is fully tightened (See gure 8).

IMPORTANT! This procedure ensures the Kevlar® strength member

is pre-loaded and adequate fiber slack is provided inside the

backshell. (See gures 7 and 8)

Step 8

Trim cable-shield or Kevlar® strength members to the end of

the intermediate compression-nut threads. Note: If desired,

some extra length of cable-shield or strength members may be

tucked away in the pocket behind banding platform under the

intermediate compression-nut threads. (See gure 8)

Step 9

Move intermediate compression nut and gland assembly

into place and thread onto main body assembly. Tighten all

threaded couplings including connector to adapter/backshell

coupling nut, adapter to backshell coupling nut (if applicable),

intermediate compression-nut, gland nut and cable clamps (if

applicable) to appropriate torque values, refer to SAE AIR6151

for appropriate torque values. (See gure 9)

Fig. 9

Fig. 7

*IMPORTANT: Do not pull

F/O conductors beyond

Taught causing preload

On F.O.C. Spring component

Fiber-optic

Conductors

Pulled Taught

(No Slack)*

Kevlar Strength

Members

Pulled Taught

(No Slack)

Hold Kevlar

Firmly In

This Area

Band In

Ready

Position

1/2"±1/8"

Before

Tightening

Band

Fig. 8

Remaining Kevlar

Trimmed and

Tucked In This Area

Completed

Band

Termination

1/4"±1/8" After

Tightening Band

Proper Termination Will

Leave Approx 1/4" Slack In

Fiber-optic Conductors

Kevlar Strength Members

Must Remain Taught

(No Slack)

MIL-DTL-38999 MIL-DTL-5015 MIL-DTL-26482