●
External power supply 10 - 30 VDC stable min. 3W,
●
1kV= or 3kV= galvanic isolation between RS485/RS422 interface and power supply,
●
5kV= optoisolation between FO and RS485/RS422 in the signal channels,
●
Connection RS485/RS422 network and power supply via screw terminal block,
●
Connection Fiber Optic network via 2 fibres optic connectors type: ST® *(850nm) , SC(850nm), SMA(650nm)
●
Protection against power supply reverse connection,
●
Implemented sovervoltage protection on RS422/485 network,
●
DIN 43880 standard - mounting in typical electro-installation unit,
●
Rail mounting according to DIN35 / TS35 standard,
●
Dimensions (W x D x H) 53mm x 62mm x 90mm.
2.2. DESCRIPTION
Fibre Optic ADA-7040 is a device used to connect units with RS485/RS422 interface without interfering with the data format. The use
of fibre-optic provides complete isolation between connected devices and resistance to interference on the transmission bus. The fibre
connection is implemented by a line consisting of two fibres - one fiber for the TX signal and one for RX signal. Using two this type
converters, can be use for communication with devices quite distant from each other eg. Computers, controllers etc.
ADA-7040 is equipped with screw terminal block for RS485/422 and power connections. The converter supports data rates of up to
2Mbps by four or two pairs of twisted pair connected to the screw terminals. The device use to operate lines RX +, RX-, TX +, TX-.
To RS485/422 bus built on the ADA-7040 can be connected 32 devices operating in half duplex mode or full duplex mode.
Overvoltage protection was made on base safety diodes and fuses on each RS485/RS422 lines.
Fig. 1. View of ADA-7040
4
ADA-7040
62mm
Power Supply
10 - 30 VDC
9
0
m
m
53mm
1
0
m
m
1
7
m
m
Multimode Fiber Optic
(SW1)
T
X
R
X
N
C
N
C
N
C
G
N
D
T
X
+
/A
T
X
-
/B
R
X
+
R
X
-
(RS485/RS422)
V
-
V
+
10 – 30
VDC
PWR
TX
RX
ADA-7040
FIBER OPTIC to RS-485/RS-422
CONVERTER
RS-485/422
RS-485
2-wires
RS-485 4-wires
or RS-422
Summary of Contents for ADA-7040
Page 10: ...10 ADA 7040...
Page 11: ...11 ADA 7040...