INTERFACE DESCRIPTION

The INFI-NET to INFI-NET interfaces are the INIIR01 INFI-NET

to INFI-NET Remote Interface and the INIIL02 INFI-NET to

INFI-NET Local Interface. The INNIS01 Network Interface Slave

Module is the front end of the INFI-NET to INFI-NET interfaces.

It is the intelligent link between a node and the INFI-NET loop.

The network interface slave (NIS) module and an INFI-NET to

INFI-NET transfer module create a specific node interface.

The INIIR01 INFI-NET to INFI-NET Remote Interface is made

up of the NIS module and the INIIT12 INFI-NET to INFI-NET

Transfer Module. This interface is a node on a central loop that

can communicate to an interface node on a remote satellite

loop (two interfaces are required, refer to Figure 1-1). Bidirec

tional communication from the central loop to the remote sat

ellite loop is through standard RS-232-C ports. The INFI-NET

to INFI-NET remote interface can support hardware redun

dancy. Refer to Appendix E for information on hardware redundancy.