XP95 VAD Base

XP95 VAD Bases are used either with a detector fitted or with a cap for operation as a stand-alone alarm device. The XP95 Sounder VAD Bases are supplied with a built-in isolator. Group addressing is a simple method of alerting an entire area or group of rooms without delay. For systems requiring isolators at every point the built-in isolator saves installation time and cost. The VAD self test is achieved by means of an LED monitoring circuit. If the LEDs do not draw current when the VAD Base has been switched on a fault signal is transmitted when the device is next polled. The XP95 VAD Base responds to its own individual address set with a DIL switch. It also responds both to a group address, set by means of a 4-segment DIL switch and to a synchronisation address which is embedded in the unit. Addresses 1 to 111 are used exclusively for individual addresses; addresses 112 to 126 are used for group addressing. Any VAD Bases on a loop may be freely assigned to a group. The address for any group must be chosen from the range 112–126. Addresses 112–126 may be used as individual addresses but only if the 4-segment DIL switch is not used ie, group addressing is disabled. If the 4-segment DIL switch were set to any number other than the default 127, a pre-set analogue value of 4 would be transmitted to indicate a fault. It may be desirable, in alarm conditions, to switch more than one Sounder VAD Base simultaneously. To enable this, devices may be controlled as a group and given a group address which is common to all Sounder VAD Bases in the group. When a device recognises its group address, it will process the output bits but it will not return any data to the control panel on that address. If it is required to confirm the status of the outputs of devices under group address control, it is necessary to interrogate all devices in the group at their individual addresses

• EN54-23 Compliant Category O. VAD
• VAD flash rate of 0.5Hz
• Synchronised with the Apollo Protocol
• Individual and group addressing

• CE 0832
• LPCB