CTI Products CCU Channel Control Unit - Manual (Page 21)

CCU Hardware Reference Troubleshooting
CTI Products, Inc.
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15
7. Operation in an MCN Network
The CCU can be seen in an MCN network as a CIB unit or as a CCU unit. If the
MCNRCD software is configured to see it as a CIB unit, only the first 5 (toggle)
sections will be active as Function Blocks.
For each function block (section) of the CCU, you will have to select an
appropriate Display Table to use. Standard CCU Display Tables are:
Section Type
Display Table Typical Display
1 Main/Standby Base CCU Base Main / Stby
2 Repeater On/.Off CCU Rptr On / Off
3 Comparator A/B CCU Comparator Comp A / Comp B
4 RX Norm/ECS CCU ECS Norm / ECS
5 TX Norm/ECS CCU ECS Norm / ECS
Table 10 – MCNRCD CCU Display Tables
Each of these Display Tables allow the user to toggle the function with the left or
right mouse function. These tables may be customized if desired. See the
MCNRCD Software Manual for details. The bit values for display and mouse
functions are shown below.
Bit
Table 3 2 1 0
Display Toggle 1 In Q (Norm) Toggle 2 In /Q (Inverted)
Mouse Toggle 1 Force Set Toggle 2 Force Reset
Table 11 –CCU Display Table & Mouse Bit Functions
The Toggle 1 In and Toggle 2 In reflect the state of the Tgl 1 & Tgl 2 inputs for
the particular section of the CCU being monitored. They will normally be "Don't
Care" bits in dispatch displays. They can be displayed (in a special bit-wise
display table) for use by a technician to verify that the Toggle signals from the
consoles are being seen at the CCU.
Normally the Toggle mouse actions will be used. The Force Set and Force Reset
functions are available to explicitly set and reset the functions. They are provided
to allow a special CCU device descriptor to be made for the MCNRCD software.
The Display Table entries for the CCU can be configured to generate logging or
alarms if desired.