CTI Products MCN RCD System Overview - Manual (Page 42)

MCN System Manual System Examples
CTI Products, Inc.
68-10833-120
38
operator’s PC.
To force the TSAM to steer to transmitter 1, the operator will generate a FORCE
VOTE for receiver 1. The TIB will receive this FORCE VOTE for receiver 1 and
setup the Tx Select lines for transmitter 1 and the Force Select line. When the
TIB activates the Force Select line to the TSAM, the TSAM will immediately
steer to transmitter 1. The FORCE VOTE for receiver 1 will also cause the CIB
to generate a FORCE VOTE command to the comparator.
9.6 Example 6 - Connecting Networks in Multiple Buildings
Figure 20 shows an example system using two EXB modules to connect a
monitoring and control system that has the comparators and the console located in
different buildings.
CA-80166-100
COMPARATORS
CIB
CIB
IIB
IIB
CONSOLE
ELECTRONICS
1
T
P/S
T
IN
IN
OUT
OUT
CONSOLE
P/S
EXB
IN
OUT
IN
OUT
T T
OUT
IN
OUT
IN
BUILDING 1 BUILDING 2
EXB
2
Figure 20 - MCN module in two buildings connected with EXB Modules
This system extends the comparator status and control lines to a console located
more than 4000 feet away. It performs a “logical extender” function.
The EXB modules are used to connect the IIB modules with the CIB modules.
The EXB connection can be either a 2 wire or 4 wire leased line. No
programming is required for the EXB. Simply set the option switches as specified
in reference 7, connect the EXBs to the leased line, and power on the modules.
The EXBs will automatically begin training and once the link is established, begin
passing data.
An optional handset could be plugged into each EXB to allow the personnel in
building 1 to talk to personnel in building 2 while the comparator display system
is functioning.