DSC MAXSYS Dual-Zone Bell Panel PC4702BP Error Codes & Status

PC4702BP dual-zone bell panel — MAXSYS supervised bell/siren output module on Combus.

Product type

Siren / sounder

At a glance

What this device does in the system

Provides audible/visual alarm annunciation when the panel enters alarm — must be enrolled and supervised like any other wireless or bus device.

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 MAXSYS Dual-Zone Bell Panel PC4702BP (ID 36)
• PC4702BP Dual Zone Bell Panel Installation Manual — DSC official documentation

Siren faults typically appear as Module/Sensor Fault, Low Battery, or Supervision on the host panel:

• PowerSeries: [*, 2] trouble scroll; wireless sirens listed under module/sensor low battery sections.
• Neo/Pro: Corbus/PowerG device trouble in [*, 2] layered display.
• IMPASSA/Alexor: wireless siren supervision via [804] enrollment — missing siren shows zone/module fault.

Common status / trouble indicators

Keypad commands (host panel)

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: PC4702BP Dual Zone Bell Panel Installation Manual; host panel or system install manual.