Drop Wire Modules
VR
Features

The box consists of a body and cover which houses a stub block. Provision for wall mounting is incorporated in the body of the box.

The lid has various opening positions, which can be selected according to the amount of working space available, and is also fitted with a seal to limit water entry.

Grommets are provided for drop wire access (2 x 2 for small pair-counts and 2 x 4 for 30 pairs and above).

The box locking mechanism is mounted through the cable stub and is effective on closing the box; to open the box again a special key or a screwdriver is required depending can be manufactured from 5 to 30 pairs in units of 5 and a terminal for pilot pairs may also be provided. The ground terminals of each pair are electrically connected to the cable shielding and to an external ground terminal. The unit is sealed with resin and the cable-block connection is sealed with heat-shrinkable tubing.

The terminal block is manufactured separately and then screwed into the box. Blocks.


Description


Products Specifications
Contact characteristics
Drop wire connector:Gauge range 0.4 to 1.2mm
insulation diameter:5.0mm max
Pair connector:Gauge range 0.4 to 1.2mm
insulation diameter:3.0mm max
Current conducting capacity
20A 10A per connector for 10 minutes at least without causing deformation of the module ( if 20A up to 30A is required, this is possible using a different GDT)
Insulation resistance
Dry atmesphere>10^12 Ω
Damp atmesphere(ASTMD618)>10^12 Ω
Salt fog(ASTMB117)>10^12 Ω
Immersion in water>10^12 Ω
(15 days in 3% NaCi solution)
Increase in contact resistance
After climatic tests<2.5m Ω
After 50 reinsertions<2.5m Ω
Dielectric strength>3000 Vdc for 1 minutes
Mechanical characteristics
Pair/drop qire housing screwSpecial passivated direct+lacquered zamac alloy
Drop wire housing bodyTransparent polycarbonate
BodyFlame retardant (UL 94) glass-fiber reinforced polycarbonate
Insertion contactsTinned phosphor bronze
Ground contactsCu-Zn-Ni-Ag alloy
Lower sealantEpoxy resin
Upper cable sealantSilicone filled
Pair/drop wire bearing coverPolycarbonate
Continuity contactsTinned hard brass
Pair/drop wire bearing coverPolycarbonate
Plug-in module bodyFlame retardant (UL 94 V0)glass-fiber reinforced polycarbonate
Plug-in module sealantGel
"O"-RingEPDM
SpringStainless steel
Cable/drop wire membranceThermoplastic rubberC


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Application

● STB is a high reliability connection module, designed to with stand all existing climates.

● Watertight by design, it provide the best service for the following applications:

Interface boxes UG/Aerial Networks

Distribution points

Customer termination devices.

● Fits on DIN 35 rails

● Very compact, overall dimensions allow to replace existing won protected solution by a high reliability solution

● No special tool required, only by standard screw driver.


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