20 pairs Subscriber Terminal Block STB Drop Wire distribution box
without protection
Terminal Housings are a family of enclosures that may be used to
environmentallyprotect 10, 15, 20, 25 or 30 terminal blocks. Each
housing includes a standard DIN rail for mounting terminal
blocksalong with all grounding hardware. A sufficient amount of
room is provided for making drop wire terminations while thehousing
features a small, compact and visually appealing design. Housings
may be ordered with or withoutterminals, pre-stubbed or without
stub wiring. Rubber grommets are included at all drop wire cable
entry and exit ports.
The STB module provide a connection point between an exchange-side
cable pair and
a distribution pair. It incorporates a 10-point plug in module to
provide continuity
and a range of other options.
Multi-Serivce terminal housings are especially functional in that
up to 20 pairs may be terminated inside the enclosure while up to
200 pairs may be “looped through”, a technique that eliminates the
need for an additional joint or closure in close proximity to the
terminal housing.
Features
Rugged, compact design.
Molded from high impact and UV resistant plastic.
Lightweight and cosmetically appealing.
All metal parts of non-corrosive materials
All bonding and grounding hardware included.
Rubber grommets included for all cable entry/exit ports.
Standard DIN rails included.
DIN rail doubles as an earth point.
Easy access to both sides of the terminal blocks.
Minimum twenty year life cycle tested.
Configurations
Fully populated, protected or unprotected terminals are
preinstalled and cable ready.
It is especially recommended for:
1. Outdoor connections where the enviromental conditions are
extremely agressive.
2. Terminations where user development characteristics require
future flexibility in terms of the type of protection or filtering
capabilities.
Current conducting capacity
20 A, 10 A per conductor for 10 minutes at least, without causing
deformation to the module
Insulation resistance
Dry atmosphere: >1010 Damp atmosphere(ASTM D618, procedure F):
>1010 Salt fog:(ASTM B117) >109
Immersion in water: (15 days in 3% NaCl solution) TELCORDIA
TR-NWT-000975 (Formerly Bellcore)>109
Contact resistanceRmaterial + Rbridge contacts + Rwire contacts
<10 m
Increase in contact resistanceAfter climatic tests: <2.5 m After
50 reinsertions: <2.5 m
Dielectric strength >3,000 Vdc for 1 minute
Mechanical characteristics
Protector ground contactTinned hard brass Continuity contactTinned
hard brass
Plug-in module bodyFlame retardant (UL94) fiber-glass reinforced
polycarbonate
Plug-in module sealantGel O ring EPDM
Internal Configuration Continuity AS STB 260 V GDT230 V GDTAS-STB-P
