Cable Requirements Cable.H Handset (3K) 4 core 0.22mm Handset (4K) 4 core 0.22mm Cable.P Power supply 2 core 0.5mm Cable.L lock release 2 core 0.5mm

Cable H runs to the handset. A standard alarm cable is adequate for this set up to 50m because call and release currents are very low. Upgrade the cable when additional handsets are run down the same cable. The power cable P should be 0.5mm. The PSU should be mounted within 10m of the panel, or consider upgrading the power cable. The 13Vac lock release is not included in the set. Cable runs from the panel to the lock release are normally short, but currents are high, so use at least 0.5mm.