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  • NAPCO StarLink3 (SLe-GSM-3/4G) Universal Cellular Alarm Communicator — Brochure

    September 08, 2026 4 min read

    Product brochure for the NAPCO StarLink3 Universal 3G/4G GSM Radio — a future-proof, field-upgradable cellular alarm communicator for primary or backup reporting.

    Full text manual (for reference)

    Product brochure for the NAPCO StarLink3 (SLe-GSM-3/4G) Universal 3G/4G GSM Radio — a future-proof, field-upgradable cellular alarm communicator that works as a primary or backup GSM reporting path for any brand of alarm panel.

    Overview

    The StarLink SLe-GSM Series is a future-proof universal cellular communicator (3G/4G) offering full event alarm reporting over the GPRS radio network for both new and retrofit installations. It's not limited to NAPCO panels — it reports full-data alarms for any competitive brand control panel to any central station. Full high-speed Napco panel remote upload/download is also supported on Gemini P816/1632/1664 and P9600/3200/X255 series panels (requires the SLE-DLCBL cable).

    Because cell networks evolve, StarLink radios are field-upgradable: as carriers progress from 3G/4G to future generations, a dealer can update to the prevailing network by simply replacing the plug-in radio module — no need to replace the entire radio.

    Key Features

    • Universal back-up or primary GSM communicator — jumper-selectable Primary mode (radio provides Tip/Ring line feed voltage and reports all alarms via GPRS) or Backup mode (radio detects when the premise's telco line is cut and only reports via GPRS in that case)
    • Full event reporting in Contact ID and 4/2 format from any panel, anywhere — field-proven across the US
    • Phone app for remote arm/disarm on any panel brand via keyswitch input, plus optional email/text alerts
    • Cost-Saver Upgrade Program — upgrade to StarLink3 from competitive 2G radios (see napcosecurity.com/contact/StarLink4GUpgrade)
    • Easiest 4-wire installation and activation — just enter a Radio ID; Dialer Capture eliminates entering phone numbers, formats, or account numbers
    • Takeover Feature — easily captures any panel's existing central-station phone number and reroutes it without reprogramming the panel
    • Includes AT&T SIM card and dual-band high-efficiency antenna
    • Optional Smart Charger Module for premises with premium/limited AC power or optimized radio mounting locations up to 100 ft. from the panel
    • Reports to any central station — no special equipment or activation fee needed
    • Bonus: full high-speed Napco panel remote upload/download (requires separate cable)

    Security & Ease of Installation

    • Encrypted alarm and upload/download packets
    • 3 status LED indicators (visible with wiring cover installed): Green — signal strength; Amber — radio busy/activation; Red — trouble
    • Tamper protection
    • Dual-band antenna for North America, 2dBi+ gain
    • Radio can be placed up to 100 feet from the control panel for best antenna location (optional high-performance remote antenna available)
    • Built-in power supply uses the alarm panel's Aux power as its source
    • Optional Smart Charge Module for premises where auxiliary/fire standby power is too low, without requiring a separate power supply (uses a 4AH/12V battery)

    Compliances: UL 864 9th Ed., UL1610, UL985, UL1023, UL1635

    NAPCO's UL-Compliant Network Operations Center (NOC)

    • Field-proven Signal-Boost technology throughout transmission/reception (both at the radio and NOC), super-amplifying alarm signals for reliability even in remote/fringe areas
    • Alarm reporting to the central station of your choice — no special equipment needed
    • NOC automatically enrolls a radio into the system on first alarm transmission — no website setup required
    • NOC website access for complete management/modification of alarm routing and reporting
    • Provides GSM radio supervision, alarm reports to the central station, and text/SMS/email alerts
    • Real-time status monitoring of all radio accounts (online/offline, check-in, signal strength, trouble conditions, low battery/voltage)

    My Home StarLink App

    • Easy single-button security system arm/disarm control for accounts
    • Status updates so accounts see alarm status before and after arming/disarming
    • Downloadable from iTunes or Google Play for iPhone/iPad/Android devices
    • Makes a great demo tool on a smartphone to show prospective customers StarLink remote control capability

    Specifications

    Dimensions 5-3/8" x 7-7/8" x 1-7/8" (H x W x D)
    Weight 13.5 oz.
    Electrical (+12V, all models) Input voltage 11-15VDC; input current 65mA, peak RF transmit 400mA (80mA for SLe-GSM-8D-3/4G model, same peak)
    IN 1 Burg/Fire Input Input voltage 9-15VDC; max input current up to 2mA from FACP NAC circuit
    IN 2 / IN 3 Max loop voltage 15VDC; max loop current 1.2mA; EOLR value 10K
    3 PGM Outputs Open collector, max 3V when active / 15V when not active; max sink current 50mA
    Operating Temperature 0 to 49°C

    Ordering Information

    Part No. Description
    SLE-GSM-3/4G 3G/4G Network Compatible GSM Universal Wireless Alarm Communicator, SIM card. Service plan(s) sold separately; no activation fee.
    SLE-DLCBL For use with Gemini panels only — Napco up/download cable, sold separately
    SLE-UPGRD-3/4G 3G/4G network field upgrade kit for use with SLe-GSM Universal Wireless Alarm Communicator
    SLE-REMOTE Remote App for arming/disarming panel via wireless radio (requires service upgrade)
    SLE-DLEXT Optional, for up/downloading — extends distance from radio to panel from 10' up to 100 ft.
    A606 Free trifold end-user brochure for new/existing accounts (statement stuffer or self-mailer)
    SLE-SMTCHG Optional Smart Charge Module for optimal radio positioning regardless of available AC outlets; ideal where auxiliary/fire standby power is too low. Uses standard 4AH/12V rechargeable battery.
    SLE-CDMA-FIRE Sole Path Fire Alarm Cellular Communicator (Red), model similar to above
    SLE-GSM-FIRE StarLink Sole Path Fire Communicator (Red) on 3G/4G GSM Network

    Manufacturer

    NAPCO Security Technologies Companies (NASDAQ: NSSC) — NAPCO, Alarm Lock, Continental Access, MarksUSA. 333 Bayview Ave., Amityville, NY 11701 USA. Phone: 1-800-645-9445 / 1-631-842-9400. Fax: 1-631-789-9292. www.napcosecurity.com.
    StarLink is a trademark of NAPCO. Patents pending. Specifications subject to change. © NAPCO 2014.