Repeater Control Systems
SRS Repeater controllers are designed for use in large linked radio networks or any application where you need a highly flexible, expandable radio control system. The rack mount control systems mount in a typical 19" wide computer or communications cabined. The card cage is 3 rack units tall and about 8" deep.
FULL CROSS POINT SWITCHING
The SRS control system is built on a full cross-point audio matrix. This means that any port can be connected to any other port in any combination. This allows you to operate isolated "sub-nets" for example connection a repeater with two links, while connection 2 other repeaters to a VOIP link and being able to connect everything with a single DTMF code.
MACROS, CUSTOM COMMANDS and SECURITY
The controller offers a large number of built in commands to configure the controller. You can rename any of the built in commands to a DTMF sequence that you choose. Commands can be combined into a "macro" that can be triggered by a single DTMF command. All commands and macros can have security setting that include the requirement for a PIN code, or various other operating conditions to execute the command.
The system supports up to 20 PIN codes.
LOCAL AND NETWORK ADDRESSING
A network of multiple controllers requires the ability to individually address each controller on the network at the same time. You define a 2-4 digit site prefix allowing all controllers on the network to use the same DTMF commands but be individually addressed with the prefix.
For example if your command set the controller to it's normal condition is DTMF 123, and your remote site has a unique prefix of #01, you can send #01 followed by 123 and only the site with the prefix #01 will decode and execute the command.
OUTSTANDING AUDIO QUALITY
The control system maintains a flat, low noise audio path to ensure high quality audio fidelity. We recommend tapping the receiver audio at the discriminator and injecting transmit audio in the repeater transmitter's modulator. This will ensure the best possible audio fidelity which is very important especially in a linked network with several radio hops. The radio control board supports both flat audio, typically from devices like computers and VOIP systems and radio audio which is pre-emphasized.
REMOTE CONFIGURATION AND MANAGEMENT
The main CPU board includes a command serial port that can be connected to a local computer or a TCP/IP to serial converter to allow you to remotely administer and configure your system from a remote location.
EASY SETUP
The SRS config software makes it easy to set up all aspects of the control system. Features include the ability to set command names, program macros, set all audio levels including Rx, Tx and telemetry, set callsign, PIN codes, and a complete built in test panel for setting audio levels and controlling all ports wile testing.
ADVANCED TELEMETRY OPTIONS
Each port generates it's own telemetry tones. This allows you to have someone access one port while blocking others. When a user has access to the decoders, other ports will detect control requests and respond with a busy signal indicating the controller is busy.
A spare backplane slot is assigned to an optional Digital Voice Board (DVB). The DVB is currently in the beta testing phase. The DVB is an embedded linux computer that fits on plug in board. The DVB includes a large voice library and python code examples to connect the main controller CPU to the DVB over the backplane. A command macro can be programmed to send a command to the DVB to speak a custom voice word or phrase on execution.
OPTIONAL PHYSICAL CONTROL
Each RCB includes 5 user programmable open collector outputs that can be used for controlling relays and other devices.
PROGRAMMED EVENTS AND REMOTE ADMINISTRATION
We designed two "CommServer" board for advanced applications. One version is based on the BeagleBone Black industrial control embedded linux board. The second "CommServer" uses the very popular Raspberry PI embedded linux computer. The intent is for our users to take these widely used boards and develop your own applications. A simple example is to use the linux CRON mechanism to easily program scheduled events such as sending commands to the repeater controller over the backplane to the main CPU board. A typical application may be to reset the controller every day at 2 AM to make sure the system is reset to a normal condition each day.
FULL CROSS POINT SWITCHING
The SRS control system is built on a full cross-point audio matrix. This means that any port can be connected to any other port in any combination. This allows you to operate isolated "sub-nets" for example connection a repeater with two links, while connection 2 other repeaters to a VOIP link and being able to connect everything with a single DTMF code.
MACROS, CUSTOM COMMANDS and SECURITY
The controller offers a large number of built in commands to configure the controller. You can rename any of the built in commands to a DTMF sequence that you choose. Commands can be combined into a "macro" that can be triggered by a single DTMF command. All commands and macros can have security setting that include the requirement for a PIN code, or various other operating conditions to execute the command.
The system supports up to 20 PIN codes.
LOCAL AND NETWORK ADDRESSING
A network of multiple controllers requires the ability to individually address each controller on the network at the same time. You define a 2-4 digit site prefix allowing all controllers on the network to use the same DTMF commands but be individually addressed with the prefix.
For example if your command set the controller to it's normal condition is DTMF 123, and your remote site has a unique prefix of #01, you can send #01 followed by 123 and only the site with the prefix #01 will decode and execute the command.
OUTSTANDING AUDIO QUALITY
The control system maintains a flat, low noise audio path to ensure high quality audio fidelity. We recommend tapping the receiver audio at the discriminator and injecting transmit audio in the repeater transmitter's modulator. This will ensure the best possible audio fidelity which is very important especially in a linked network with several radio hops. The radio control board supports both flat audio, typically from devices like computers and VOIP systems and radio audio which is pre-emphasized.
REMOTE CONFIGURATION AND MANAGEMENT
The main CPU board includes a command serial port that can be connected to a local computer or a TCP/IP to serial converter to allow you to remotely administer and configure your system from a remote location.
EASY SETUP
The SRS config software makes it easy to set up all aspects of the control system. Features include the ability to set command names, program macros, set all audio levels including Rx, Tx and telemetry, set callsign, PIN codes, and a complete built in test panel for setting audio levels and controlling all ports wile testing.
ADVANCED TELEMETRY OPTIONS
Each port generates it's own telemetry tones. This allows you to have someone access one port while blocking others. When a user has access to the decoders, other ports will detect control requests and respond with a busy signal indicating the controller is busy.
A spare backplane slot is assigned to an optional Digital Voice Board (DVB). The DVB is currently in the beta testing phase. The DVB is an embedded linux computer that fits on plug in board. The DVB includes a large voice library and python code examples to connect the main controller CPU to the DVB over the backplane. A command macro can be programmed to send a command to the DVB to speak a custom voice word or phrase on execution.
OPTIONAL PHYSICAL CONTROL
Each RCB includes 5 user programmable open collector outputs that can be used for controlling relays and other devices.
PROGRAMMED EVENTS AND REMOTE ADMINISTRATION
We designed two "CommServer" board for advanced applications. One version is based on the BeagleBone Black industrial control embedded linux board. The second "CommServer" uses the very popular Raspberry PI embedded linux computer. The intent is for our users to take these widely used boards and develop your own applications. A simple example is to use the linux CRON mechanism to easily program scheduled events such as sending commands to the repeater controller over the backplane to the main CPU board. A typical application may be to reset the controller every day at 2 AM to make sure the system is reset to a normal condition each day.
- Rx and Tx audio buffering
- Digital level control for Rx level, Tx level, sub-audible Tx tone level, telemetry audio level
- Receiver high pass filter to remove sub-audible (PL) tones from the Rx audio chain. Rolloff starts at 200 Hz and is >30db down at 150 Hz. The filter is designed for systems that use tones of 150 Hz or below to maintain maximum voice quality.
- 3 small board slots for optional signal processing boards.
- DTMF decoder on every port. The controller can decode and act on each port individually.
Proudly powered by Weebly