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AL-CAT5SJW – Outdoor 10/100 Base-T CAT5 Lightning Surge Protector, Shielded RJ45 Jacks

  • 802.3af Modes A and B Power-Over-Ethernet and Reverse Polarity PoE compatible
  • Impact and weather resistant enclosure with locking hinged cover
  • Protects 4 data pairs
  • Shielded RJ45 jacks
  • Supports use of shielded CAT5 cable

6 in stock

SKU: AL-CAT5SJW Categories: , Tags: , , ,


The Protector AL-CAT5SJW is a Compact Weather Resistant Lightning Protector which provides lightning and surge protection for CAT5 data applications. The unit is fully compatible with industry-standard Power-over-Ethernet (PoE) devices and 10/100 Base-T Ethernet networks, providing protection to both Ethernet data pairs as well as the PoE DC power feed. The unit supports both modes A and B of the 802.3af standard for of supplying DC power. Power can be fed up the CAT5 data pairs, 1-2, 3-6 or using the two unused pairs, 4-5, 7-8.

High speed semiconductors clamp any voltage, positive or negative on the wires. The limits are +/- 58 volts on the four cable pairs. The design utilizes Thyristor diode technology which has superior power handling capability compared to TVS or Zener diode based designs. The unit is compatible with both normal and inverted polarity voltage PoE equipment.

The compact weather resistant housing features a lockable hinged cover and break-away holes are provided on the rear of the enclosure for mounting. The cable grommet may be adjusted to cable size and are removable.

To help reduce the effects of EMI interference, the AL-CAT5SJW features shielded RJ45 jacks.

This unit supports normal and reverse polarity PoE used in some Cisco Access Points. It is compatible with devices with or without Power-over-Ethernet (PoE) functionality.


**Call To Order In Quantity**

Additional information

Weight 5.0 lbs


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  • 10/100 Base-T Ethernet Equipment
  • Wireless Access Points & Bridges
  • Wireless Client Adapters
  • IP Cameras with PoE


Electrical Specifications

  • Ethernet Connectors: (2) Shielded RJ45 Jacks
  • PoE Clamping Voltage: 58 Volts

Mechanical Specifications

  • Enclosure Material: PVC
  • Enclosure Color: Gray
  • Ground Lug: 12 AWG Max.
  • Operating Temperature: -40 C (-40 F) to +80 C (+176 F)
  • Weight: .27 lbs. (.12 kg)
  • Dimensions (WxHxL): 3.06 x 1.93 x 4.06 (inches), 78 x 49 x 103 (mm)
  • RoHS Compliant: Yes

Ordering Information:

HyperLink / HY03 AL-CAT5SJW