Overview
DSC door/window contact — magnetic reed switch for perimeter intrusion detection on wired or wireless loops.
Product type
Security sensor
At a glance
| Detail | Value |
|---|---|
| Category | Security sensor |
| Primary manual | Contact installation manual for your SKU |
| Install scope | Premises panel or bus device |
| Supervision | Panel trouble display when faulted |
What this device does in the system
Reports intrusion, life-safety, or status conditions to the host panel — faults appear as zone or module troubles, not always on the device itself.
Before you install or replace one
- Confirm exact model number on the label matches the install manual.
- Verify host panel or system family — Keybus, Corbus, Combus, PowerG, MX, or 433 MHz are not interchangeable.
- Check device limits on the panel/receiver before adding zones, sirens, or credentials.
- Include current draw in power budget calculations for modules, receivers, and keypads.
- For wireless: test RF at the mounted location, not only on the bench.
Official sources
- Product page: DSC Wireless PowerG Door & Window Security Contact - PG9975 (ID 2468)
- Contact installation manual for your SKU — DSC official documentation
Need more help with this model?
We have not published model-specific troubleshooting for the DSC Wireless PowerG Door & Window Security Contact - PG9975 yet. The manufacturer's installation and user manuals are the most reliable source for wiring, programming, and trouble codes.