The Communication Termination Unit (NTCLO1) provides a termination point for a Network Interface Slave Module (INNIS01)or a Loop Interface Module (INLIM03). The TCL gives the option of using twinaxial or coaxial cable to connect the NIS to the INFI-NET communication network or the LIM to Plant Loop.Jumper settings on the TCL select the type communication cable. Figure 1-1 shows an example of the NTCL01 within aPCU on the INFI-NET communication network.
HARDWARE DESCRIPTION
The TCL attaches to a Field Termination Panel (NFTP01), inside the INFI 90® cabinet, with two mounting screws and one ground screw. It is a printed circuit board that consists of:
• Terminal strips
• BNC connectors
• Electronic components
• Jumpers
• Fuse
FEATURES:
The NTCLO1 provides connectors for both twinaxial cable and coaxial cable. Jumpers on the circuit board set the impedance to match the communication cable. The +24 VDC supplied to the board is fused, protecting the electronic circuitry on board.
