Servicom were invited to exhibit Global Reach Over IP (GR:IP) to attendees at the Inmarsat Dealer Conference in Barcelona the 9th and 10th of November 2011. GRIP, that is available as a software and hardware solution facilitates radio communications over IP to create networks, simply, robustly and cost effectively. More...
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A W Comms DRC-1S
Product Code - DMKBU39K0J
- A W Comms DRC-1s
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Further Reading:
Product Description
A W COMMS DRC-1S
Download PDF: A W Comms DRC-1s
- Motorola Signalling
- Simoco Signalling
- Modem Access
- Speech/data priority setting
- M80 Emulation
- Internal/external microphone
- Internal/external loudspeaker
- Easy to configure
- Rugged metal case
- Separate brick PSU
- Low cost
The DRC-1s has been specifically designed with ease of configuration and, ease of use in mind. The unit employs our own DSP software code providing signal generation and detection, and is housed in a rugged 1mm steel case which is powder coat finished.
The unit offers full control for land-line based remote radio sets via 600 ohm balanced lines. The configurable features include the generation of either Motorola tone remote signalling or Simoco (2970Hz) key tone, M80 emulation, both local and remote, plus many other configurable features.
The unit is eminently suitable for providing dual manual and computer access to, and control of the radio base station over land-line, with configurable signalling format and configurable priority given to either speech dominant or data dominant systems.
The interface connectors are found in a single row to the bottom rear of the case, thus permitting neat wiring to the unit. The front panel has tactile pushbuttons for PTT and TT on/off, plus LED's for DC power, channel busy,TX and TT state.
The signalling options are selected on a switch field found on the main PCB card, details of which are given below.
The external connectors:
- Line Socket - RJ45 - for the connection of four-wire land line
- Microphone Socket - RJ6 - to connect an external microphone if required.
- Auxiliary Socket - DB9F - for external modem connection
- External PTT - 2Pin - for connection of a foot switch PTT
- External Speaker - 3.5mm - socket for connecting an external speaker if required
- Power Connector - for 12v DC power input
Line Interface Connector RJ45 Pin No Signal Notes 1 Line Input 0 600Ω balanced 2 Line Input 1 600Ω balanced 3 Line Output 0 600Ω balanced 4 5 6 Line Output 1 600Ω balanced 7 PTT Output Active low 8 Ground Desk Microphone Connector RJ11 Pin No Signal Notes 1 Earpiece Output 150Ω 2 Ground 3 Microphone Input Electret Biased 10kΩ 4 PTT Active Low 5 External Microphone Select Active Low 6 Auxiliary +12v DC Limited to 500mA Auxiliary Connector DB9F Pin No Signal Notes 1 Auxiliary +12v DC Limited to 500mA 2 Audio Output 0 600Ω balanced 3 Audio Input 0 600Ω balanced 4 Auxiliary PTT Active Low 5 Operators Busy Signal Active Low 6 Loudspeaker Mute Active Low 7 Audio Output 1 600Ω balanced 8 Audio Input 1 600Ω balanced 9 Ground Special note: The auxiliary power supply is fed by an auto-reset fuse. The output from the supply when all of the auxiliary outputs are summed should not exceed 500mA.
The signalling interface which the DRC-1s presents to the outside world is programmable, and set by the internal switch bank (dip switches). The switch bank is constantly read and changes made should be implemented within 200mS.
SW1 S3 S2 S1 Off Off Off DRC-1 hardwire PTT Off Off On DRC-1 2970Hz PTT Off On Off M80 Remote emulation Off On On M80 Local emulation On Off Off Motorola 2100Hz PTT On Off On Motorola 2175Hz PTT On On Off Motorola 2325Hz PTT On On On Motorola 2325Hz PTT




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