The D204F module is a communication device that performs the function of distributing and amplifying the control-bus signal in those facilities with special characteristics that require it, taking into account the restriction of not installing more than three segments in cascade. The control bus has an optical-fibre prolongation so you need two equipments to establish connection.

 

CAPACITY

The D204F version of the distributor / amplifier includes in the same module the fibre optic connection, which allows extending the D204F bus to another module, with a maximum distance of 2000 m, by means of a pair of multimode fibres (850 Nm - 62.5/125) with ST connectors. The fibre connection is recommended for reasons of distance or electrical noise insulation. Each module can distribute the control bus in four copper strands called BUS1 to Bus4 of 600 m each.

The system allows mounting the equipment distributors with a maximum of three links in cascade and mixing copper and fibre bus distributors.

POWER SUPPLY

It works with external power supply +12VDC, with a consumption of 25 mA. when idle and a maximum consumption of 30 mA.

INSTALLATION

The bottom of the equipment is provided with a DIN-standard mounting rail. The connection is made via socket strip.

CAPACITY  
Distribution/Amplification to 4 control buses
Link Bus Control for F.O. 1 Emission, 1 Receipt
Direct. occupation of Substation 0
   
ELECTRICAL  
Nominal power consumption in standby 25 mA
Maximum consumption 30 mA
Power 12  ±1 Vcc
   
COMMUNICATIONS  
CONTROL BUS  
Installation Cable approved for RS485, according to ANSI EIS/TIA-485, on Shielded Twisted-Pair (STP) Cables, 0.35 mm section and low capacity (40 to 60 pF / m).
Connection 3 1.5-mm pluggable terminal blocks
   
Link of OPTICAL FIBER   
Installation Fibers multiway 850 nm (62.5/125). 
Connection 2 Connectors ST
   
PHYSICAL  
Dimensions (W x H x D) 101,0 x 105,5 x 24,0 mm
Anchor Type DIN rail ( 35 mm symmetric)
Weight (including terminals) 133,3 gr
Temperature range -10 < > +90 ºC
Non-condensing maximum humidity 90 %

(1) INSTALLATION

  • Installation onto DIN-standard mounting rail with spring anchor.

(2) POWER SUPPLY

  • External 12 VDC.
  • Consumption 30 mA.
  • Low-voltage alarm.
  • Analogue telemetry.

(3) CONTROL BUS for ZONE MODULES

  • Connection bus of the substation input / output modules.
  • Automatic disconnection in case of failure.
  • Remote on / off switch.

(4) DISTRIBUTOR / AMPLIFIER

  • Control-Bus Amplifier up to 4 buses of 600 mts.
  • Maximum distance to the substation: 600 mts.
  • Maximum distance to Control Module: 600 mts.
  • Maximum 3 units in cascade.
  • Remote on / off switch

(5, 6) CONTROL BUS to OPTICAL FIBRE

  • Bus amplifier with link via multimode optical fibre to the next amplifier.
  • Maximum distance: 2,000 mts.
  • Maximum 3 links in cascade.