Overview
HS2LCD/HS2LCDP hardwired full-message LCD keypads are the standard Neo Corbus operator interface for arming, troubles, and installer programming on HS2016–HS2128 panels.
Panel bus / link type
Corbus (PowerSeries Neo)
At a Glance
| Detail | Value |
|---|---|
| Product type | Alarm keypad / operator interface |
| Model family (HS2LCD, HS2LCDP) | See label and install manual |
| Bus / wireless link | Corbus (PowerSeries Neo) |
| Primary manual | NEO HS2LCD Install Manual |
| Region / listing notes | UL fire listed installs may require HS2LCD (non-icon) per regional listing |
Before You Install or Replace One
- Confirm exact model number on the keypad label matches the install manual.
- Verify host panel family — Keybus PowerSeries, Neo Corbus, MAXSYS Combus, and IMPASSA wireless are not interchangeable.
- Plan unique keypad address or wireless enrollment — duplicates cause bus collisions or offline devices.
- Check partition assignment (global vs partition keypad) for multi-partition sites.
- Include keypad current draw in panel AUX / Corbus / battery standby calculations.
Official Sources
- Product page: DSC Full Message LCD Hardwired Security Keypad with Prox Support (ID 2446)
- NEO HS2LCD Install Manual — DSC official documentation
Troubleshooting
Start with host panel family, then keypad model, then bus vs wireless link.
Quick diagnostic flow
- Confirm keypad model matches NEO HS2LCD Install Manual.
- Verify host panel is on the supported list in compatible-peripherals.md.
- Check power: panel AC/battery healthy before blaming keypad.
- Read troubles at keypad with **
[*, 2]** or trouble LED. - Verify address / enrollment — wired:
[013]Keybus or[902]Corbus; wireless: enroll window and transceiver online. - Test with known-good user code on assigned partition.
Wiring / bus
- Keybus: homerun, polarity, termination; one bad keypad can drag bus if shorted.
- Corbus/Combus: homerun from panel module; check AUX/Corbus voltage under load.
- Wireless: battery, range, antenna, transceiver supervision on panel first.
HS2LCD service
- Enroll at
[902]before running walk test from that keypad. - UL fire installs: confirm HS2LCD (non-icon) where listing requires — not HS2ICON.
- Multi-partition: user must select partition on HS2LCD before arming area.
HS2LCD enrollment
- Assign unique Corbus address at
[902]. - Set global vs partition keypad in programming.
- UL fire listed sites: use HS2LCD (non-icon) where required.
After keypad replacement
Re-assign address, partition visibility, and user PINs per manual — new keypad does not inherit old device programming automatically.
Source: NEO HS2LCD Install Manual; host panel installation guide keypad sections.