LUUM.IO
ACC-EM-BUS - DATA SHEET#

Product Overview#
The X-PoE Emergency Bus Board is a DIN rail-mounted bus connection block that consolidates the emergency override inputs of up to eight X-PoE switches into a single trigger relay. It provides a clean, organized wiring solution that ensures all connected switches respond simultaneously during emergency events, eliminating the need for individual relay connections. A built-in pass-through port allows multiple emergency bus boards to be easily linked for larger systems, making it a simple and scalable solution for coordinating emergency override across X-PoE installations.
Specifications#
| ACC-EM-BUS SPECIFICATIONS | |
|---|---|
| Dimensions | 88.7 mm x 51 mm x 27.6 mm (3.49 in x 2 in x 1.09 in) |
| Weight | 0.02 kg (0.04 lbs) |
| Interfaces | (8) X-PoE Emergency Override Connections (1) Emergency Trigger Connection (1) Pass-Thru Connection |
| Environment | Operating Temp: 0°C to +40°C (32 to 104°F) Storage Temp: -20 to +40°C (-4 to +158°F) Humidity: 10% to 90% (non-condensing) |
| Warranty | 1 Year |
Front Panel#
The ACC-EM-BUS front panel is shown below:

- Emergency Trigger Input
- Emergency Trigger Pass-Thru
Rear Panel#
The ACC-EM-BUS rear panel is shown below:

- X-PoE Emergency Override Outputs
X-PoE Switch Connection#

When wiring the emergency bus board to X-PoE switches, it is important to maintain proper pin-to-pin continuity between the emergency override terminals. The conductors must be arranged so that pin 1 connects to pin 1 and pin 2 connects to pin 2. This ensures consistent polarity and proper operation of the override input across all connected devices.
Note
Mating Connector: Phoenix Contact MC 1,5/ 2-ST-3,5 - 1840366