4.1. DESCRIPTION OF SIGNALLING LEDS
LED
Description
PWR
Signalling of Power Supply
RX
Signalling of data receiving through ADA-7020 converter from Current Loop port
TX
Signalling of data transmitting from ADA-7020 converter through Current Loop port
ATTENTION !
AT BAUD RATE ABOVE 38.4 KBPS THE LED'S TX, RX WILL LIGHT WEAKLY DURING DATA TRANSMISSION
5. VERSIONS
ADA-7020 -
-
-
-
-
Order example:
Product Symbol:
ADA-7020-1-1-2-3-1
1
– current loop voltage: 24VDC,
1
– current loop type: ± 20mA,
2
– galvanic isolation: 1kV=,
3
– cover without inlets, plug-in screw
terminal block
1
– fibre connectors: ST 850 nm,
Current Loop Voltage:
24VDC
1
12VDC
2
Current Loop Type:
± 20mA
1
0 – 20mA
2
Galvanic isolation:
1kV=
2
3kV=
3
Terminal & Terminal Cover:
Cover without inlets, screw terminal block
1
Cover with inlets, screw terminal block
2
Cover without inlets, plug-in screw terminal block
3
Fibre connectors:
ST
– type 850nm
1
SC
– type 850nm
2
SMA
– type 650nm
3
6. SPECIFICATION
TECHNICAL DATA
PARAMETERS
Interface
Fibre-Optic
Current Loop
Connector
ST
® * type - transmitter and receiver for an optical
wavelength from 792nm to 865nm,
SC
type - transmitter and receiver for an optical
wavelength from 792nm to 865nm,
SMA
type - transmitter and receiver for an optical
wavelength from 640nm to 675nm.
Screw terminal, wire max. Ø
2,5mm
2
.
Line length
- up to 2000m for fibre type 50/125 mm,
optical power budget Tx/Rx 9,6[dB],
- up to 2500m for fibre type 62,5/125 mm,
optical power budget Tx/Rx 15[dB],
- up to 2000m for fibre type 100/140 mm,
optical power budget Tx/Rx 15[dB],
- up to 1500m for fibre type 200 mm HCS,
optical power budget Tx/Rx 20[dB],
- up to 20m for fibre type POF/1mm
Depend on baud rate, several
kilometres
Max. number of connected device
1
1
Transmission line
Two multimode fibres:
- connectors ST-850, fibres type 50/125
m
m,62,5/125
m
m, 100/140
m
m, 200
m
m HCS.
- connectors SC-850 fibres type 50/125
m
m, 62,5/125
m
m, 100/140
m
m, 200
m
m HCS.
- connectors SMA-650 plastic fibres type POF/1mm.
2-pair twisted cable eg UTP
4x2x0,5 (24AWG), shield
inside large interferences eg
STP 4x2x0,5 (24AWG)
Max. baud rate
38,4 kbps
7
ADA-7020
