CellSpanSIGNAL BOOSTER
Application Scenarios

Elevators & Stairwells

Coverage for lift cars, shafts, stairwells and emergency phones.

Site-specific configurationOEM / ODMInstallation supportRequest a SolutionRecommended Signal Booster Solutions
Elevator interior requiring mobile and emergency-call coverage

Application Overview

An elevator car is a metal enclosure, and the shaft and stairwell often have no usable outdoor signal. Coverage usually requires a dedicated antenna in the car or shaft, connected through the traveling cable or a suitable cable route. Emergency phones need particular attention because a call that fails inside a lift is a safety issue, not just a convenience issue.

Metal car blocking outdoor signal
Shaft and stairwell with no usable signal
Traveling cable and lift interfaces
Emergency phone reliability
Lift safety rules and maintenance access
Coverage on every floor, not only at the lobby
Elevator interior requiring mobile and emergency-call coverage

Typical Installation Layout

A typical installation uses an outdoor donor antenna, a booster or fiber repeater, a distribution network and indoor service antennas.

  1. 1

    Confirm the outdoor donor and the elevator vendor’s interface rules before design.

  2. 2

    Place a service antenna in the car or shaft and route the cable through the traveling cable or an approved path.

  3. 3

    Test voice and emergency calls on every floor and at the worst shaft position.

Installation notes

  • Coordinate with the lift contractor; do not modify lift control or safety circuits.
  • Use flexible, lift-rated cable and leave service loops for car movement.
  • Confirm the emergency phone works with the booster and with the lift alarm system.
Typical signal coverage system diagram

Request a Solution

Share your floor plan, coverage area and target bands. Our engineering team will propose a practical configuration.

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  • Mon – Fri, 9:00 – 18:00 (GMT+8)

Helpful with your enquiry

  • Floor plan or site photos
  • Area, floors and ceiling height
  • Target bands and operators

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Frequently Asked Questions

Does each elevator need its own antenna?

In most cases, yes. A metal car shields the signal, so a dedicated antenna in the car or shaft is normally required. One host may serve several lifts if the RF design and cable routes allow it.

Can the system support the emergency phone?

It can improve the radio path, but the emergency phone and lift alarm system must be tested together. The lift contractor and building operator should confirm the final acceptance criteria.

Is it possible without access to the lift shaft?

Sometimes a car-mounted antenna with a traveling-cable connection is enough, but shaft access is often needed for cable routing and testing. The lift vendor must approve the method.