Allows the interconnection of up to 64 ZFP Main Panels (any mix) and up to 64 ZFP Compact Controllers over a two-wire RS485 ring-wired, multi-path, fault-tolerant 'Hi-Net' network. One ZHN required per ZFP Main Panel (ZFP Compact Controllers include a ZHN PCB as standard). RS485 Protocol. Max. cable length between nodes = 1KM Max. cable length of entire network = 128KM For retrofits, multiple ZHNs can be wired in a non-fault tolerant, single-path network configuration (Max. 8 nodes; Max length of entire network must not exceed 1KM).
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