The YBN-R/4IS(WHT) is a WHITE conventional detector mounting base associated with the conventional range of intrinsically safe detectors which is fully compatible with the majority of existing conventional fire alarm control panels. The YBN-R/4IS(WHT) is supplied with square cable clamps for secure and reliable cable termination. Note that this base does not provide line continuity during detector removal (head out support). If manual call points are therefore being used, then these should be wired onto the zone first.