Circa Telecom Building Entrance Protection — 25 Pair (Model 1880ENS1-25)
The Circa Telecom 1880ENS1-25 is an indoor building entrance protection unit designed for 25-pair telecommunications applications. It provides reliable surge and overcurrent protection at the point where outside plant cables enter a building, helping to safeguard connected equipment from damaging transients.
Key Features
- 25-pair capacity for mid-size installations
- 710 Connector input interface
- 110 Connector or 66 Block output — flexible termination options
- Compact indoor enclosure: 12.75 L x 4.75 W x 8.75 H inches
- Suitable for indoor building entrance locations
Specifications
- Manufacturer: Circa Telecom
- Model: 1880ENS1-25
- Pair Count: 25
- Input Connector: 710
- Output Connector: 110 Connector or 66 Block
- Dimensions: 12.75 x 4.75 x 8.75 in.
- Installation Type: Indoor
Applications
Ideal for telephone company demarcation points, enterprise telecommunications rooms, and any location requiring building entrance protection for 25-pair copper cable runs. Commonly used by telecom contractors and facility managers to protect PBX systems, data circuits, and voice lines from lightning-induced surges and electrical interference.



