Overview
The ZEM8/E+P-BOX is an RS‑485 zone expansion module in a compact plastic P‑BOX enclosure that adds eight wired zones to any compatible expandable wired or hybrid control panel. It is designed for tidy installations with multiple cable knockouts, cable‑tie anchors and secure mounting points. The unit includes front and rear tamper protection and a reset button on the PCB to change address while the system remains powered.

• Adds 8 wired zones via RS‑485 expander connection.
• Zone wiring: Supports DEOL and 3EOL configurations for flexible zone wiring.
• Tamper protection: Closed‑loop front and rear tamper circuitry for enclosure security.
• Installer‑friendly: Multiple knockouts, cable‑tie anchors, keyhole/slotted mounting holes and a PCB reset button for address changes while live.
• Aux power distribution: Two additional 12 V terminals to help distribute AUX power.
• Compact P‑BOX: Plaster/back‑box friendly enclosure for neat surface or recessed installations.
• Standards & warranty: EN50131 Grade 3 certified, Environmental Class II. 2‑year warranty.

Typical technical details
Voltage input ~9–16 VDC. Typical current consumption ≈20 mA @ 12 VDC. Fuse 350 mA. Operating temperature range −10 °C to +40 °C. Storage −40 °C to +80 °C. Humidity rating ~85% at 25 °C. P‑BOX dimensions 150 × 100 × 28 mm; PCB 100 × 40 × 14 mm. Weight 203.5 g.

Compliance & installation
Meets EN50131 Grade 3 and Environmental Class II. Installation should be performed by a qualified installer in accordance with the manufacturer installation guide and local regulations. Refer to the product datasheet and installation guide for wiring diagrams, addressing instructions and tamper wiring details:

• Datasheet: https://cdn.dynamictech.uk/Images/Products/alarms/ZEM8E%2BP-BOX_Datasheet.pdf
• Installation guide: https://cdn.dynamictech.uk/Images/Products/alarms/ZEM8E%2BP-BOX_Installation_Guide.pdf

Safety note
Ensure power is isolated where required for safe wiring. If changing module address using the PCB reset button, follow the manufacturer's procedure to avoid bus conflicts. Confirm AUX power capacity of the main panel before connecting additional devices.