Connection components. Connection box for Advanced Handheld Panel, XBT-GH, the XBT GH operator terminal is connected to the XBT ZGJBOX connection box using the XBT ZGHLpp cable (order separately) (see above for details). A connection box is required for each connection point of the XBT GH operator terminal. Use Specifically for the XBT GH operator terminal, the connection box enables 24 V c power supply for the XBT GH operator terminal. Connection of various safety inputs/outputs, connection of serial multi-protocol interface (SUB-D, 9-pin), Ethernet TCP/IP (RJ45). Can be mounted on a 35 mm rail.