Luceat RS 485 User manual

RS 485
INSTALLATION MANUAL
Installation
Transmission type: mono-directional (1 fiber) and bi-directional (2 fibers)
Supported transmissions: FULL and HALF Duplex
Transmission speed: 3 bit/s to 1152 bit/s
Transmission distance on plastic fi er: up to 3 m
Line termination: 12 ohm selectable via Switch
Electrical connections selecta le via Switch:
HALF DUPLEX: Rx+ (A) and Rx- (B)
FULL DUPLEX: Transmitter: Tx+ (Y) and Tx- (Z)
Receiver: Rx+ (A) and Rx- (B)
Connecti le electrical units: 32 units
Optical connections: 2xF-SMA
Power supply: 12-24Vdc +-1 %
Consumption: ,5W max
Protection grade: IP2
Weight: 85g
Certification: EMC 2 4/1 8/CE
Temperature: -2 ° / +7 °
Assem ling: on DIN guide
Optical connectors
DIP switch
Electrical connectors
Power supply
- Select via Switch the transmission type (HALF or FULL duplex)
See Tab A
- Perform electrical connections with 2 or 4 wires:
See Tab B
- Connect the plastic optical fiber
- Supply power to the device
- Perform electrical connections:
- With HALF Duplex: connect only 2 wires to Rx+ e Rx- terminals
- With FULL Duplex: connect to Rx+ and Rx- the wire pair that has to transmit data to the optical door,
whereas the wire pair that will receive data from the optical door, has to be connected to Tx+ and Tx-

Block Layout
Ta le A (DIP switch configuration)
Selectors 1, 2, 3: they establish type of
connection (HALF duplex or FULL duplex)
Selector 4: it establishes whether to
insert or not the 12 ohm termination
TROUBLESHOOTING
- Termination of line RS-485 (sele table by DIP Swit h) prevents the signal refle tion along the able
and must be inserted in ea h devi e representing one end of the onne tion.
- With devi es using a ground onne ted power supply, you need to onne t the age of the onverter
to the ground of power supply (the minus terminal of power supply is not onne ted to ele troni mass
of the board!).
- For transmission speed of 115200bps onne t at least 50m of fiber.
- In order to guarantee immunity from power supply noises, do not onne t power supply ables
longer than 30m.

Ta le B (connections layout)
(Ex.: Keyboard) (Ex.: Speed-Dome)
Transmission FULL Duplex with two POF fibers
(Ex.: connection between Computer and Computer)
(Ex.: Computer)(Ex.: Computer)
Transmission HALF Duplex with one POF fiber
(Ex.: connection between Keyboard and Speed-Dome)
Transmission HALF Duplex with one POF fibers
(Ex.: connection between Keyboard and Speed-Dome)
Transmission HALF Duplex with two POF fibers
(Ex.: connection between Consolle and Alarm Board)
(Ex.: Alarm Board) (Ex.: Consolle)

Signals
NOT TO DO
(these behaviors in rease the plasti fiber attenuation)
(Do not walk on the fiber) (Do not pull hard on the fiber) (Do not make sharp bendings)
Luceat Srl
Via A.Canossi,18
25 3 Torbole Casaglia (BS) - Italy
Tel. [phone]
Fax [phone]
Commercial information: [e-mail]
Technical Assistance: [e-mail]
www.luceat.it
LED PWR: power supply
LED RX: reception of
optical signal on plastic fiber