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2 SM42A / SM82A matrix description
2.1 Specifications
The SM42A / SM82A matrix is a product for professional use in applications for security and
surveillance. In a security system it is used to control 4/8 input videos on two outputs, using remote keyboards.
The following is a list of its main features:
Video programming
Menu in four languages (Italian, English, French and German)
Different switching sequences for each output video
VCR trigger management
Telemetry control on RS485 auxiliary line and on coaxial cable
Matrix control using 2 serial RS485 lines for remote control devices
Identification tests for each output
Completely configurable alarm input for each input video
Types of alarm reset: manual from keyboard, external, timed, automatic
Relay can be activated by each alarm
Alarm condition warning buzzer
Video signal masking on fixed camera
Local keyboard with 15 keys for complete matrix control.
75 Ohm video input termination removable
Video switching or reposition in case of alarm
Video input exclusion from switching sequence on public monitors
2.2 Connectable devices
Keyboards:
Connect a max. of 2 keyboards using the KEYBOARDS lines:
new series DCJ, DCK, DCTEL, DCBD, DCT, DCIR: used for complete matrix control
Linxs series LXRPK12, LXRPK23, LXRPRC36: only control of video switching
previous series DCMT8, SWC4, SWC8, SWC16, DCS2, DCS3, KEYPLUS: only control of video switching.
An interface is required since communication from the keyboard does not use RS485 (with the exception of
the DCS3 model).
Telemetry receivers:
Control of telemetry receivers using the AUX line:
Videotec receivers DTMRX1, DTRX3, DTRX1, DTRXDC, MICRODEC485, DTMRX2
Dome with protocol Pelco ‘D’
Eneo receivers
Control of telemetry receivers using the video lines (COAX transmission):
Videotec receivers DTRX3 fitted with a DTCOAX board, DTMRX2
Multiplexer videos
Videotec Multiplexer SP16C
Javelin/Hitron Multiplexer
Eneo Multiplexer
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