Comelit MT SB2 01 Manuel Technique page 37

GROUP S.P.A.
Art. 4577
Simplebus2 Comelit Cable
Specific cable for Simplebus 2 systems: consists of two twisted
red and black conductors with 1mm
Available in 100 and 500 m. coils.
Art. 1254
Relay for various services
Power supply 12VAC, 20VDC.
Relay capacity: 10A.
This accessory allows:
• bell repetition service.
• Relay control service from internal unit in systems without
switchboard.
• stair lights service.
• secondary door-opening service.
For cabling and explanation of services, please see the Art. 1254
documentation.
MT SB2 01 36
2 cross-section.
Art. 4833/A
Line amplifier
Amplifier for Simplebus video systems.
This regenerates the riser signal in relation to the video component.
Power supply: 12V AC or 20V DC.
Only to be mounted on the input stretch of the system to the
Mixers-power supplies Art. 4896.
Dimensions: 66x85x35 mm (4 DIN modules).
Terminals for system connection:
Lin Lin: riser line input.
Lout Lout: riser line output.
~+ ~-: power supply module.
Art. 4834/2
Line concentrator
Line concentrator for Simplebus video system.
Allows distribution of the signal over 4 risers.
Only to be mounted on the input stretch of the system to the
Mixers-power supplies Art. 4896.
Dimensions: 66x85x35 mm (4 DIN modules).
Terminals for system connection:
Lin Lin: riser line input.
L1 L1: branch output1 of riser.
L2 L2: branch output2 of riser.
L3 L3: branch output3 of riser
(cut the resistance before inserting the cables).
L4 L4: branch output4 of riser
(cut the resistance before inserting the cables).