Transmitter steering interface modules (tibs), System extension modules (exbs), Router and repeater modules – CTI Products MCN RCD System Planner User Manual

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Section 3 System Components and Specifications

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MCN Comparator Display System Planner

3.1.3

Transmitter Steering Interface Modules (TIBs)

The Transmitter Steering Interface Modules (TIBs) work in conjunction with the CIB comparator
Interface Modules and external Transmitter Steering equipment, such as the TSAM Transmitter
Steering Unit from CTI Products. This interface provides monitor and control of transmitter sites from
a PC with a HIB as the Operator Interface Module. The CIB is the only Comparator I/O Module that
operates with the TIB and the HIB is the only User Interface Module that operates with a TIB.

The TIB is used in systems that have multiple transmitters, with each transmitter associated with one or
more receivers and that use the TSAM to provide steering for the transmitter sites. The TIB will
translate a FORCE VOTE command for a particular receiver into a FORCE TX command that
commands the TSAM to steer to the transmitter associated with the receiver being FORCE VOTED.
The TIB can also monitor the TSAM for the active transmitter site for display on a PC.

3.1.4

System Extension Modules (EXBs)

The EXB modules are used in pairs to connect two MCN networks together or to extend the length of
an MCN network beyond 4000 feet. Typical applications include:

Extending MCN Networks over phone lines

Display and control multiple remote comparator locations at a central location

Connects multiple local PC displays to a remote MCN network using 1 phone line

Zone Comparators

Master/Slave Comparators (Sub-Comparators)

State-Wide / Regional / City-Wide voting systems

The EXB System Extender Modules use any analog or digitized analog channel (including standard 2-
wire or 4-wire leased lines, or microwave channels) which is capable of carrying V.32 terbo standard
modem signaling,. Data transfer between distant networks is "live", delayed only by the transit time
through the EXB modules and the data rate across the modem link.

3.1.5

Router and Repeater Modules

Router and repeater modules are available on special order to extend the MCN network in the same
building. They can also extend the network capacity to greater than 64 modules or 20 Comparator
Interface Modules. The implementation of systems with these modules is customer-specific. CTI
Products applications engineers will be happy to assist you in designing a custom system that extends
past the normal limits of the MCN network.

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