Installation Manual

Installation Manual Page 38 of 49 MICRORAY

TERMINAL BLOCK J1, J2, J3, J4 – MICRORAY INTERNAL CONNECTION

Term. Block

Function

Ray 1 Serial Line and Power Supply

Ray 2 Serial Line and Power Supply

Ray 3 Serial Line and Power Supply

Ray 4 Serial Line and Power Supply

(*) The shield must be connected indifferently to one of these terminals

(**) The "Power presence, Positive voltage input from external supply" input must be

connected upstream of the battery. In this way, in the event of power failure, the detection

is immediate and the column powered by the battery

Power supply

Power supply 13.8 V

It is sufficient to bring the power supply to the Terminal Block MS1 on the MICRO-RAY interface

card to power all the modules present in the column. The cable that carries the power supply to

the equipment must be shielded, and the screen must be connected to earth.

The connection between the power supply and the columns must be adequately dimensioned,

therefore the conductor section must be calculated based on the connection length and the

absorption of the devices.

If the connections are too long, it is recommended to use an additional power supply.

Connect the Direct Current power supply wires 13.8 V and GND respectively to the terminals 1

and 2 of terminal block MS1 of the interface circuit.

Power supply with optional IP-DOORWAY kits

As an alternative to the 13.8Vdc direct power supply it is possible to supply all the modules present

in the single column through IP-DOORWAY. It is a RS-485 - Ethernet line converter expressly

designed to be inserted, in addition to the MICRO-RAY product, also on all CIAS digital devices.

It is available in the Standard PoE version (PoE 802.3 af - code IP-DOORWAY-S), able to be

to be powered from the outside with the standard voltage 13,8Vdc.

In both cases, IP-DOORWAY is in turn capable of powering the device on which it is mounted

and allows direct connection to the Ethernet of native devices on RS-485.