Applications

 Telephone lines

 DSL lines

Features

 Three stage protection

 RJ-11 jacks

 Industrial grade weatherproof die cast

aluminum enclosure with mounting

brackets

Description

The ALW-DSLJ is HyperLink’s outdoor version of its HGLN-DSL protector. This high

performance 3-stage lightning protector provides superior protection for Telephone

and DSL lines. Shared phone lines carry the ring voltage for standard telephones.

The unit protects against both differential and common mode transients.

The first stage is comprised of a differential gas discharge tube. Stage two is a pair

of current limiting series resistors and the final stage is a low capacitance diode

array. The use of three terminal differential gas discharge tubes provides superior

protection against surges. The second stage series resistance limits the power

dissipation of the fast diode clamp array in the third stage. This allows time for the

slower but higher power gas tubes to flash over. The diode array clamps the

leading edge of fast transients to safe levels until the high power gas tubes turn

on. This eliminates the damaging leading edge spike that single stage gas tube protectors let leak through. The 3-stage design

can handle higher-level transients than a protector that uses only diodes.

For more complete surge protection of data lines, the use of two units is recommended, one at

each end of the line.

Industrial Grade Weatherproof Enclosure

This protector features an industrial grade die cast aluminum enclosure with gasketed cover

and concealed mounting holes. It includes an aluminum mounting kit and hardware. PG16

cable glands are provided on the enclosure as well as an external ground clamp to provide a

tie point for earth ground. The cable glands are large enough to allow a RJ11 connector to

pass through, so pre-terminated cables can be used.