2GIG LTE Attic Antenna for GC2 FAQs

The 2GIG GC2 (and GC2e encrypted variant) is a compact touchscreen wireless panel supervising 345 MHz sensors, Z-Wave devices, and optional LTE communicators for Alarm.com or dealer monitoring platforms. The panel is ...

Overview

The 2GIG GC2 (and GC2e encrypted variant) is a compact touchscreen wireless panel supervising 345 MHz sensors, Z-Wave devices, and optional LTE communicators for Alarm.com or dealer monitoring platforms.

The panel is the brain of the 2GIG system: it supervises wireless zones, drives local sirens, manages Z-Wave automation, and reports to Alarm.com (or your dealer monitoring platform) when a compatible cell module is installed and activated. Installers program zones, user codes, and dialer options in the installer menu; end users arm/disarm from the touchscreen, keyfobs, or Alarm.com app.

At a Glance

SpecificationDetails
RoleCompact touchscreen alarm panel
Wireless sensors345 MHz 2GIG sensors; GC2e supports eSeries encrypted
AutomationZ-Wave devices
CellularGC2 LTE CAT1 modules — verify ADC vs Alarm.com vs SecureNet SKU
ProgrammingInstaller code on panel
Form factorSmaller footprint vs GC3 — plan sensor count and range

What This Panel Does Well

Coordinates intrusion zones, automation, user codes, and central station reporting when cell and monitoring are configured.

Before You Service or Replace One

  • Exact panel model — GC2 vs GC3 vs Edge — firmware and modules differ.
  • Encryption — GC2e/GC3e/Edge vs standard sensors in the field.
  • Cell module SKU — Alarm.com vs ADC vs SecureNet vs Telus.
  • Installer code — required for zone changes; document before service.
  • Alarm.com dealer — account status, plan, and remote programming access.

Official Sources

Use official 2GIG PDFs and install guides for exact wiring, enrollment, and firmware — specifications vary by SKU and region.

FAQs

Which 2GIG panel do I have?

Check label and installer paperwork — GC2, GC3, and Edge use different modules, firmware, and screen layouts. GC2e/GC3e support encrypted eSeries sensors.

Why does my panel show cell failure?

Usually inactive SIM, wrong module SKU, weak RSSI, or antenna fault — run installer cell test and verify Alarm.com/dealer activation.

Can I add sensors myself?

Wireless enrollment requires installer code on the panel for new zones — end users typically cannot add sensors without installer access.

Standard vs encrypted sensors?

eSeries (suffix e) sensors require panels with encryption support (GC2e, GC3e, Edge). Mixing without support causes enrollment failure or encryption trouble.

Where is official documentation?

Primary reference: 2GIG GC2/GC2e user guide and install/programming documentation

How do I test after installation?

Use panel walk test, zone status, and (if monitored) central station test per dealer procedure.

Can I mix 345 MHz and ePlus sensors?

ePlus 900 MHz sensors require XCVR2 transceiver hardware — they do not enroll on the standard 345 MHz receiver alone.

Which 2GIG panel do I have?

Check label and installer paperwork — GC2, GC3, and Edge use different modules, firmware, and screen layouts. GC2e/GC3e support encrypted eSeries sensors.

Why does my panel show cell failure?

Usually inactive SIM, wrong module SKU, weak RSSI, or antenna fault — run installer cell test and verify Alarm.com/dealer activation.

Can I add sensors myself?

Wireless enrollment requires installer code on the panel for new zones — end users typically cannot add sensors without installer access.

Standard vs encrypted sensors?

eSeries (suffix e) sensors require panels with encryption support (GC2e, GC3e, Edge). Mixing without support causes enrollment failure or encryption trouble.

Where is official documentation?
How do I test after installation?

Use panel walk test, zone status, and (if monitored) central station test per dealer procedure.

Can I mix 345 MHz and ePlus sensors?

ePlus 900 MHz sensors require XCVR2 transceiver hardware — they do not enroll on the standard 345 MHz receiver alone.