High capacity Trunkmaster, to trunk up to 255 RTS matrixes( max. 32 RS485 serial ports and/ or max. 255 via Ethernet). Includes Windows Software TrunkEdit and 1 pcs. TM-Io kit to support 8 matrices via RS485. Redundant PSU, 2RU 19'', 2 individual NIC connections, supports up to 10000 trunk lines.