Cеntral receiving station for security alarms via radio channel, telephone line and GSM channel

TECHNICAL DESCRIPTION OF CENTRAL RECEIVING STATION
FOR SECURITY ALARMS VIA RADIO CHANNEL,
TELEPHONE LINE AND GSM CHANNEL (CSRTGSM Vers. 0)

The central receiving station is a multichannel and multiprotocol device, providing capabilities for supervision and guarding of sites using radio channel, telephone line and the GSM network. The device is implemented using up-to-date components base, while the processing of the received signals is carried out by a powerful signal processor, offering reliable decoding of the signals under the conditions of heavy interference in the radio channels, reception of signals, sent via telephone lines both directly and after multiplexing equipment. The device has built-in up-to-date GSM module to allow reception of signals, originating from sites, monitored via GSM channel.

The device operates in two basic modes – autonomous, or jointly using security systems software. In the first operating mode the received signals are displayed by means of LCD display unit with two lines, showing additional information about the channel, where the signal has originated, its intensity, number of words, which protocol is it based on etc. In case of a computer, connected to the device and provided with appropriate software as SIMS, SIMSII, LARS etc. it is possible to use it together with the above mentioned programs.

The main equipment is powered from +12 VDC power supply and the power consumption, depending on the activated channels, is between 0.15 A and 0.25 A. This provides the device with the capability for longer operation in case of power failure of the mains supply.

Technical parameters of the device:

Power supply	+10/ +15 VDC
Power consumption	0.15 A / 0.3 A
Output interface to an external computer	RS232
Output interface to a terminal device	RS232
Output interface to engineering computer	RS232
Size of the operative buffer for received messages	1500 events
Number of the independent input channels Radio/ Telephone	4
GSM inputs - independent	1
Filtering of received messages by radio	150 seconds
Built-in display	LCD 2 x 16
Audible indication in autonomous mode of operation	32 dB
Control against interferences over the radio channels
Control of the used telephone lines
Control regarding the availability of GSM network
Built-in real-time clock
Supported radio protocols:
- LARS supports measurements of the signal intensity from repeaters KEL780
- DSC 1.3, 1.4
- LBS – indicated directly received signal/ repeater
- Informer 1200 – supports indication about the signal intensity of a specific repeater
- LBO – supports measurements of the signal intensity from repeaters
Supported protocols over telephone line:	4+2
	10, 15, 20, 30, 40 bps
	4+2+P
	10, 15, 20, 30, 40 bps
	DTMF 4+2+P
	DTMF 8+1
	CONTACT id
Handshake 1400 Hz / 2300 Hz / AUTO
Ademco slow, Silent Knight fast, SESCOA, ADEMCO Express, ADEMCO CONTACT id, ADEMCO CONTACT custom, Radionics, Franklin, DCI, VERTEX FBI etc.
Support CALLER id over the telephone lines and GSM channel
Number of serviced sites	9999
Information over technical interface - radio	Site
	Event
	Intensity in dB
	Number of words
	Channel
	Protocol
	Directly/ repeater
	Type of transmitter
Information over technical interface - telephone	Site
	Event
	Intensity in dB
	Number of words
	Channel
	Protocol
	CALLER id
Information over technical interface - GSM	Site
	Event
	Intensity in dB
	CALLER id
	Protocol
Built-in audio control	4 channels / 0.5 W
Indication about the condition of the telephone lines	LED indicators
Indication about the condition of the radio channels	LED indicators
Indication about the condition of the GSM channels	LED indicators
Indication about the condition of base computer	LED indicators
Built-in archive of events from sites and the system	128 Mbytes/ 512 Mbytes