![](https://static.wixstatic.com/media/7db740_cc9115207bf048c59929e6443cf506f8~mv2.jpg/v1/fill/w_288,h_192,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/7db740_cc9115207bf048c59929e6443cf506f8~mv2.jpg)
VL-NCB
NOTIFICATION APPLIANCE CIRCUIT MODULE - CLASS B
The plug-in VL-NCB module provides power for, and handles
communications to the non-addressable notification appliances.
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It has two notification appliance circuits that can be wired in the class B configuration.
Up to a maximum of 500mA can be connected to each class B circuit. Each circuit is supervised for open, short and earth trouble conditions and will report this status back to a Velocity MMP fire alarm control panel.
An additional feature that is included in the VL-NCB module is that it has the ability to program a circuit as a 24v auxiliary special application class B output, which can be used to provide power to external equipment.
FEATURES:
• Designed to meet UL864 10th Edition requirements.
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• Bulit-in synchronisation circuitry (only compatible with Velocity devices).
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• Can be programmed for either non synchronised bells or synchronised horns/chimes & beacons.
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• 2 x Class B NAC output circuit (500mA maximum load per circuit).
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• Extensive front unit status indications
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• Each circuit can be programmed as a 24v auxiliary (500mA maximum load per circuit).
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• Quick and easy to install by plugging the RJ45 cable into the module and control panel
(cable supplied with unit).
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• Power Limited.
![VL-NCB-Module-Front.jpg](https://static.wixstatic.com/media/7db740_48bdfeebb1ef43db9cb77eb749450af6~mv2_d_3840_2907_s_4_2.jpg/v1/crop/x_1429,y_898,w_984,h_1110/fill/w_200,h_223,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/VL-NCB-Module-Front.jpg)
![VL-NCB-Module-Angle.jpg](https://static.wixstatic.com/media/7db740_56a0dea103b64ba1a5f6238bd223cfe7~mv2_d_3840_2907_s_4_2.jpg/v1/crop/x_1438,y_904,w_984,h_1110/fill/w_200,h_221,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/VL-NCB-Module-Angle.jpg)