The ARU04 is a special designed flexible relay module, consisting of 4 relays. These can be used for switching between two different two different input signals. In the most common situations a background music signal and a priority signal are applied. In combination with the APM paging consoles, it offers a simple and versatile paging solution that can be applied to all types of systems. It has full priority and can be switched between 100V and standard low impedance speaker signals, as well as line level signals. There’s the possibility to connect multiple units in cascade which offers a wide range of possibilities for all kinds of applications. They are suitable to be mounted on a standard DIN rail, providing connection strips for the in- and output signals.
| Number of relays | 4 | |
| Control | RS-485 | |
| Standard Data Bus | RS-485 | |
| Power | Consumption | 6 W (max.) |
| Supply | 24 V DC | |
| Accessories | Optional | PSD242 - 24 V Power Supply |
| Dimensions | 5.31 x 3.86 x 4.92 " (W x H x D) | |
| Weight | 0.84 lb | |
| Mounting | DIN rail | |
| Construction | Unbreakable plastic housing | |
| Fire Hazard Class | VO (UL94) | |
