XP95 sounder control unit with isolator
The XP95 sounder control unit is used to monitor the operation of an external sounder circuit from an XP95 loop and to report its status to the MD2400 or MD2400L fire alarm control panel. The cabling between the XP95 sounder control unit and the sounder circuit is monitored for short circuits and open circuits using a EOL resistor at the last sounder. The MD2400 or MD2400L fire alarm control panel will generate a fault message as soon as an open line or short-circuit on the sounder circuit is detected.
The XP95 sounder control unit requires a 4-wire cabling, two wires for the 24Vdc power supply and two wires for the XP95 loop. The module is equipped with an input to report the status of an external power supply to the MD2400 or MD2400L fire alarm control panel.
The XP95 sounder control unit supplied in a backbox for surface mounting is equipped with a built-in short-circuit isolator. The address is set using a DIP-switch.
The current consumption per MD200 loop interface card XP95 is limited to maximum 100mA and per MD2400 high-power loop interface card XP95 to maximum 500mA.
The listed technical specifications are typical at 24V, 25°C and 50% RH unless otherwise stated.
Technical details
| Description | XP95 sounder control unit with isolator |
|---|---|
| Code | 085333 |
| Apollo Part No | 55000-852APO |
| Certificate of Constancy of Performance | 2531-CPR-CSP11144 - EN54-17:2005 & EN54-18:2005 |
| Supply voltage | 17 - 28Vdc |
| External power supply | 9 - 32Vdc |
| EOL resistor value | 10kΩ |
| Quiescent current | 1.95mA@24Vdc with 10kΩ EOL |
| Current in case of a fault | 3.6mA@24Vdc (yellow LED fault sounder circuit on) |
| Maximum sounder circuit current | 1A@30Vdc |
| Isolator | Built-in |
| LED indicators | - Yellow LED: isolator activated - Yellow LED: fault sounder circuit - Red LED: sounder circuit activated |
| Operating temperature | -20°C to +70°C |
| Humidity | 0% to 95% RH (no condensation or icing) |
| IP rating | IP54 |
| Materials housing | White flame-retardant polycarbonate |
| Dimensions (HxWxD) | 90x150x48mm |
| Weight | 240 g |
| Supply wiring | Four wire supply |