Description

The COMBLK and COMBLK2 Communication Terminal Blocks simplify the task of terminating communications wiring.

The COMBLK contains four independent circuits and the COMBLK2 contains two independent circuits.Each independent circuit includes three connectors – one for bus in, one for bus out and a third for wiring to the controller.Either COMBLK allows each bus to be quickly isolated and tested in each direction to simplifying the troubleshooting.A common ground connector provides a convenient means of grounding all shield drain wires.

The COMBLK and COMBLK2 Communication Terminal Blocks simplify the task of terminating communications wiring. The COMBLK contains four independent circuits and the COMBLK2 contains two independent circuits. Each independent circuit includes three connectors – one for bus in, one for bus out and a third for wiring to the controller. Either COMBLK allows the in and out bus segments to be quickly isolated and tested, thus greatly simplifying the troubleshooting of a comm problem. A common ground connector provides a convenient means of grounding all shield drain wires.

Also, both COMBLKs accommodate the COMSRG surge suppressor, which plugs directly inline between the COMBLK and the communications bus segment terminated on the plug. Either COMBLK is suitable for RS-485 wiring, Modbus, BACnet or virtually any other communications standard that talks over two or three wires. The small size of the COMBLK2 makes it ideal for installing within VFD enclosures, power meter cabinets, etc. where Modbus or other protocol communication must be connected to a remote communicating device. Both fit into industry standard 2.75” snaptrack and COMBLK2 is furnished with a TRK02.