D2W-05 L-COM | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 2
Technical content
L-com, Inc. 50 High St., West Mill, 3rd Floor, Suite #30 North Andover, MA 01845 www.L-com.com E-mail: sales@L-com.com Phone: 1-800-343-1455 Fax: 1-978-689-9484 © L-com, Inc. All Rights Reserved. L-com Global Connectivity and the L-com logo are registered marks. HyperLink Wireless brand Differential Data Line RS-422/485 and T1/E1/J1 Lightning Surge Protector - Model: AL-D2W-05 Applications and Features Applications: Protection of RS-422/485, RTDs and T1/E1/J1 Lines Features: Three-Stage Protection Superior to diode or TVS only based designs Impact and weather resistant enclosure with locking hinged cover Screw Terminal Blocks
Description
The AL-D2W-05 is HyperLink’s outdoor version of its HGLN-D2-05 protector. This high performance 3-stage lightning protector provides superior protection of differential or balanced digital or analog lines from transients and surges. The units will protect two pairs of differential data or analog signal/control lines. The first stage is comprised of a diffe rential 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 common and differential mode protection against conducted transients versus the use of lower cost two terminal tubes. 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 fl ash 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 diode array’s low capaci tance assures that the suppressor will not degrade the high- speed signals. 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. Outdoor Use The compact weather resistant housing features a lockable hinged cover and mounting holes are provided on the rear of the enclosure for mounting. The two cable grommets may be adjusted to cable size and are removable. Application Note: Not for use with T1 line with Ring or DC Power.
L-com, Inc. 50 High St., West Mill, 3rd Floor, Suite #30 North Andover, MA 01845 www.L-com.com E-mail: sales@L-com.com Phone: 1-800-343-1455 Fax: 1-978-689-9484 © L-com, Inc. All Rights Reserved. L-com Global Connectivity and the L-com logo are registered marks. Specifications Mechanical Specifications Enclosure Material Polycarbonate Enclosure Color Gray Grounding Lug (2) 12 AWG Max. Operating Temperature -40 C (-40 F) to +80 C (+176 F) Weight .40 lb. (.18 kg) Dimensions 4.75 x 4.06 x 2.81 (inches) 120.6 x 103.1 x 71.3 (mm) RoHS Compliant Yes Electrical Specifications Connectors (2) Screw Terminal Blocks Pinout Line 1: Pins 1 / 2 Line 2: Pins 4 / 5 Stage 1 Clamping Voltage ± 90 volts Stage 2 Resistance 3.3 Ohms Stage 3 Clamping Voltage ± 7.5 volts Guaranteed Quality This product is backed by L-com's Limited Warranty.