69
Model 4010 Parallel Status Option
Model 4010 Parallel Status Option
When two Model 4010 consoles control the same radio transmitter, the Parallel Status
Option communicates the frequency information between the consoles. The Busy Out and
Busy In signals of the two associated channels also need to be connected together so the
consoles reflect the transmit status of the channel.
The Parallel Status Option has the following features and limitations:
• Two consoles can be connected together for parallel status
• This option cannot be used on a console with an expansion panel installed
• Only frequency switching information is shared
Cable Installation
A split 50 terminal 66M punch-down block can be used for the installation. It allows the
channel signals from the two consoles to be brought to adjacent pins. Jumpers or bridge
clips can then be used to connect PTT-, PTT+, Tx-, Tx+, Rx-, and Rx+ (if 4-wire) of the
two channels. The Busy Out signal must be connected to the Busy In of the associated
channel of the second console and the Busy In to the associated Busy Out. See
for the split 50-block configuration.
The parallel status cable (P/N 709-7313) is installed between the two consoles’ Data
Comb connectors (6 pin RJ-11). This cable transfers the frequency information between
consoles.
Channel Card Termination
When connecting two consoles to the same transmitter, only one console can be
terminated with 600 ohms impedance. The second should be in the high impedance
configuration. The console that is the longest distance from the transmitter should have the
600 impedance. See
for the Model 4010 channel card jumper positions for the
impedance settings.
Table 22: Channel Card Impedance Jumper Settings
Option
Channel A
Channel B
2-Wire Line Termination
Low Impedance (600
Ω
)
High Impedance (3.5 k
Ω
)
JP1-A
JP1-B
JP7-A
JP7-B
4-Wire Line Termination
Low Impedance (600
Ω
)
High Impedance (10 k
Ω
)
JP2-A
JP2-B
JP3-A
JP3-B
Содержание 4010
Страница 1: ...Model 4010 Radio Dispatch Console Installation and Programming 025 9227S ...
Страница 46: ...Console Installation 46 025 9227S ...
Страница 78: ...Option Installation 78 025 9227S ...
Страница 134: ...Appendix D Troubleshooting 134 025 9227S ...