Overview
MX922 wireless glass-break detector for PowerSeries Neo / Pro and IQ Pro ecosystems via MX Base receiver.
Product type
Security sensor
At a glance
| Detail | Value |
|---|---|
| Category | Security sensor |
| Primary manual | MX922 MX Glass-Break Installation Guide |
| 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 MX922 - MX Glass-Break (ID 2720)
- MX922 MX Glass-Break Installation Guide — DSC official documentation
Error Codes
Sensor faults appear on the host panel trouble display ([*, 2] on PowerSeries, Neo, Pro where supported):
- Zone Fault / Open — wiring, EOL, or wireless supervision lost
- Tamper — cover open or wall tamper
- Low Battery — wireless sensor battery (scroll device list on keypad)
- Not Ready — open zone preventing arming (not always a trouble)
Common status / trouble indicators
| Panel display / symptom | Meaning | First checks |
|---|---|---|
| Zone Fault / Open | Loop or wireless supervision lost | Wiring, EOL, enrollment, battery |
| Tamper | Cover or wall tamper | Mounting plate, tamper jumper, cover fit |
| Low Battery | Wireless battery below threshold | Replace battery; retest supervision |
| False alarms | Environmental or mis-aim | Pet immunity, masking, location, sensitivity |
| No response | Not enrolled or wrong receiver | Receiver online, sensor ID, signal at location |
Keypad commands (host panel)
| Action | Typical command |
|---|---|
| View troubles | [*, 2] + user code (PowerSeries / Neo / Pro) |
| Silence trouble beep | [#] or any key per panel manual |
| Walk test | [*, 5] or installer walk test per manual |
| Wireless enroll | [804] Alexor/IMPASSA; DLS/keypad for Neo/PowerG |
Enrollment / supervision notes
- Most faults after install are enrollment, addressing, or power — not defective hardware.
- Wireless devices: confirm receiver/transceiver online before replacing the device.
- Modules: verify bus address unique and wiring homerun correct.
- Life-safety sensors: verify fire/CO zone type and monitoring path separately from burglary.
Source: MX922 MX Glass-Break Installation Guide; host panel or system install manual.
| Code | Meaning | Suggested Fix |
|---|---|---|
| Zone Fault / Open | Loop or wireless supervision lost | Wiring, EOL, enrollment, battery |
| Tamper | Cover or wall tamper | Mounting plate, tamper jumper, cover fit |
| Low Battery | Wireless battery below threshold | Replace battery; retest supervision |
| False alarms | Environmental or mis-aim | Pet immunity, masking, location, sensitivity |
| No response | Not enrolled or wrong receiver | Receiver online, sensor ID, signal at location |
| Action | Typical command | |
| View troubles | `[*, 2]` + user code (PowerSeries / Neo / Pro) | |
| Silence trouble beep | `[#]` or any key per panel manual | |
| Walk test | `[*, 5]` or installer walk test per manual | |
| Wireless enroll | `[804]` Alexor/IMPASSA; DLS/keypad for Neo/PowerG |