Distribution and direct central office (DCO).
Distribution and trunk.
Trunk and branch.
Branch and DCO
To connect the direct central office (DCO) to the private automatic branch exchange (PABX) located on a subscriber’s premise.
For large local offices that use two or more groups of toll-connecting trunks.
To connect a local DCO with a toll center for short-haul traffic
To access the worldwide toll system
White and yellow.
Brown and violet.
Orange and slate.
Blue and green
10.5 to 17.5.
16.5 to 20.5.
19.5 to 23.5.
AF Form 103
AF Form 592.
AF Form 1024.
AF Form 2401
Non-commissioned officer in charge.
Avoid the noise from the engine.
Prevent bends and restrictions in ventilator hose.
Prevent exhaust gases from reentering the subterranean structure.
Avoid congestion in work area so safety equipment can be installed.
Ringing in the ears.
Tingling of the skin.
Watering of the eyes.
Dry or cotton mouth.
Derrick winch system
Support structure system.
Manhole retrieval system.
Plastic duct seal.
Fiberglass duct rodders.
Quick-coupling duct rods.
Screw-coupling duct rods
Aid in removing cable from the cable reel stand.
Prevent the cable reel jack from tipping over.
Support the cable reel on the cable reel jack
Break the cable reel on the cable reel trailer.
Over the top of the reel.
From the bottom of the reel.
Over the top of an unattended moving reel.
From the bottom of an unattended moving reel
The clove hitch to slip.
Proper pulling-in speed
The connecting link to catch in the duct
Cable racking system.
Not to obstruct work space.
Not to touch manhole floor.
Lashed cable support.
Grip the cable.
attach the cable to the strand
Terminate the suspension strand.
Support the suspension strand at in-line poles
12 American wire gauge (AWG)
Remove the forward part of the hold-down lever and the strand roller stop.
Open the front cable lifter and adjust it to the highest position
Close the pulling plate guard and the gate of the lasher guard.
Adjust the front vertical cable rollers to their widest opening.
Using lashing-wire grips.
Using cable-lashing clamps.
2 inches of wood
3 inches of concrete
4 inches of brick.
6 inches of well-tamped earth
Standard single offset.
Alternate single offset.
Alternate double offset.
Alternate double offset.
Standard single offset.
Soldered and epoxy.
Soldered and brazed
Epoxy and spring loaded
Soldered and spring loaded
5 to 10 psi.
10 to 15 psi.
15 to 20 psi.
Top of the run.
Middle of the run.
Bottom of the run.
Connects central office equipment.
Provides ground connections.
Connects the outside cable.
Between test fields of adjacent connectors.
Only on stubless connector bases to ground.
To the base of the connector to join it to the main distribution frame (MDF)
Connects between the transverse arm and mounting bracket
3 to 6
6 to 9.
9 to 12
12 to 15
Install a dress loop.
Install a pressure dam
Clamp moisture dam to base.
Wire wrap conductors to pins.
2 to 3.
5 to 6.
8 to 9.
11 to 12
1 3/4 to 2.
1 1/2 to 1 3/4.
1 1/4 to 1 1/2.
1 to 1 1/4.
No metal to insulation contact.
High pressure contact.
10, 16, and 20.
10, 20, and 26.
10, 16, and 26
16, 20, and 26.
Top two, left binding posts.
Top two, right binding posts.
Bottom two, left binding posts.
Bottom tow, right binding posts
Binding post chamber.
Pressure sensitive lock washers.
Color coded tape
Piece of plastic sheath.
Short length of color-coded conductor
Knot tied in the conductors on non-continuous cable.
1 1/4 inches after crimping 25 to 50 pairs.
2 1/4 inches after crimping 25 to 50 pairs.
1 1/4 inches after crimping 50 to 100 pairs.
2 1/4 inches after crimping 50 to 100 pairs.
A base, a connector body and a cover.
An index strip, a connector module, and a cap.
An index strip, a connector module, and a cover.
A connector module, a bridge module, and a half-tap module.
Test entry ports
25-pair conductors in 710-type connectors.
50-pair conductors in 710-type connectors.
25-pair conductors in module-type connectors.
50-pair conductors in module-type connectors.
Top front to bottom.
Bottom front to top.
Top rear to bottom.
Bottom rear to top.
12 American wire gauge (AWG).
6-American wire gauge (AWG) wire to the terminal box.
12-AWG wire to the terminal box.
6-AWG wire between the cable shield and ground lug
12-AWG wire between the cable shield and ground lug.
2 1/2 to 4 1/2 inches
2 1/2 to 6 1/2 inches
4 1/2 to 6 1/2 inches.
6 1/2 to 8 1/2 inches
Type of equipment.
Surface of equipment.
Size of lettering required.
Alarm module number.
Distance to central office
One layer of half-lapped vinyl tape.
One layer of half-lapped glass tape.
Two layers of half-lapped plastic tape
Two layers of half-lapped friction tape
A splice cover.
Two-ply CR tape.
Apply two half-lapped layers of friction tape followed by two half-lapped layers of vinyl tape.
Apply four half-lapped layers of muslin followed by two half-lapped layers of friction tape.
Change out the cured rubber (CR) tape every 48 hours.
Apply a second CR boot.
1/2 pounds per square inch (psi).
2 1/2 psi.
Extends 1/2 inch beyond the DR tape.
Is applied even with the friction tape
Extends 2 inches beyond the rubber cement
Extends 1 inch beyond each end of the opening
Repairable throw, and out-of-service throw.
Wet section throw, and out-of-service throw.
Wet section throw, and damaged section throw
Damaged section throw and repairable throw.
Within 6 inches
Within 12 inches.
Heat shrink tubing.
8 to 9 inch-pounds.
12 to 15 inch-pounds.
8 to 9 foot-pounds.
12 to 15 foot-pounds