Remote Radio Control over IP

The RRC101-IP uses the RoIP-Technology (Radio over Internet Protocol). RoIP is an extension of the known Voice over IP (VoIP), in which additional datas for link connection, PTT, Squelch and Channel are transferred and offer the opportunity for the remote controlling of radio transceiver.

To transmit voice, data and signals, the specific developed Radio over Internet Protocol (RoIP) will be carried out.

It is easy to integrate the RRC101-IT in existing networks or the Internet. Using existing IP infrastructure (WAN, LAN, Internet, VPN) offers a cost efficient way to connect radio systems and operators.

Via the transparent Serial- and Parallel-Interface, additional data can be transferred and enables remote channel switch-over of radio transceiver or alerting. To switch-over the radio channels is also possible through the serial (RS232) or parallel interface.

The RRC101-IP is available in two versions:

As Black-Box (RRC101-IP-B) for single mounting with mounting flange or as 19-Inch-Slide-In-Module (RRC101-IP-19, height = 3U, width = 10 HP) See Overview.

For the power supply we recommend our optional switching power supply SNT18.

The configuration of the RRC101-IP can be done over the webinterface or USB Flash-Drive.

After copying the data on the USB Flash-Drive, the Flash-Drive is connected with the USB-Port of the RRC101-IP. The configuration data are automatically downloaded. After the compleated transfer the Flash-Drive can be removed.

Updates are done the same way.

Monitoring, updating and configuration is possible with SSH or serial interface.

Is the RRC101-IP over a gateway connected with the Internet, it can be operated and maintained worldwide.



Supply Voltage

+9 to +16 VDC, nominal 12 V, max. 300 mA

Operating Temperature Range

-20º to + 60º C


Up to 95% by 55° C

Display Front Panel

5 LED's – Power, Link-Active, 10/100 Mbit, Tx active, Rx aktive


ca. 560 gr

Programming / Configuration

USB-Flash-Drive, RS-232, Secure Shell, Webinterface

Rx Audio Input

Input Resistance

10k Ohms

Input Voltage

500 mV (70 – 800 mV adjustable)

Frequency Range

60 Hz - 3400 kHz (- 2 dB)

Signal to Noise Ratio

better 60 dB

TX Audio Output

Output Resistance

min. 20 Ohms, nominal 35 Ohms

Output Voltage

500 mV nominal (2.0 – 1000 mV adjustable)

Frequency Range

60 Hz - 3400 kHz (- 2 dB)

Signal to Noise Ratio

better 60 dB

Digital Output (PTT)


Solid-State Relays

Max. Sink Current

250 mA (AC or DC)

Max. Open Circuit Voltage

+/- 250 V

Digital Input (SQUELCH)


Opto coupler

Input Resistance

1k Ohms


Active low or high, adjustable


+1.5 V nominal

Protection Up To

+/- 30 V

2 Serial Interfaces


RS-232, asynchron, Full Duplex


4800, 9600, 19200, 38400, 57600, 115200 bps


RJ45 extern, one intern



10/100 Mbps Ethernet, RJ-45


UDP, TCP/IP, ftp, http, bootp, tftp, ssh (more Protocols e.g. Telnet on Demand)

Audio encoder / decoder

Speex codec

Additional digital In- / Output


Tristate, 0 oder 3.3 V


Tristate, 0 oder 3.3 V, 50 mA

Number of In / Outputs

7 (5 by use of the extern RS232-Interface)

More Informations

For more informations,

Service-Manual or Flyer see

Service & Support.