CTI Products MCN RCD System Planner - Manual (Page 45)

Appendix C System Examples
MCN Comparator Display System Planner Page 41
7.6 Example 6 - Multiple Remote PCs using EXB System
Extenders
When only one remote PC is needed to monitor remote comparators, a HIB Host Computer Interface
Module and a pair of modems are used. If multiple PCs are required, that method would require
multiple telephone lines, one for each PC.
Figure 19 shows a way to connect multiple PCs to remote comparators using only one phone line. The
pair of EXB System Extender Modules extend the MCN network at the remote site to the local site.
The remote network of CIB Comparator Interface Modules is essentially re-created at the local site.
Multiple PCs are then connected to the local MCN network through standard HIB Host Computer
Interface Modules. The number of PCs at the local site is limited only by standard MCN system
limitations.
HIB
T
OUT
IN
P/S
EXB
OUT
IN
T
P/S
CIB
CIB
OUT
OUT
IN
IN
OUT
IN
CIB
OUT
IN
T
TO COMPARATORS
LEASED LINE
REMOTE SITE
CA-80185-100
EXB
HIB
T
OUT
IN
COM 2
COM 1
COMPARATOR
DISPLAY
COM 2
COM 1
COMPARATOR
DISPLAY
Figure 19 Multiple Local PC Displays with Remote Comparators using EXB Modules
Systems using EXB System Extender Modules are considered custom designed systems. Please
contact a CTI Products application engineer for help in designing a system.