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5. VERSIONS

ADA-7021 - 

-

-

-

-

Order example:
Product Symbol: 

ADA-7021-1-2-1-2-1

1 – 

standard electronic version,

2 – 

12VDC CL voltage,

1 – 

0 – 20mA CL current,

2 – 

1kV 3-way galvanic isolation,

1 – 

ST-type 850nm fibre connectors,

Electronic version:

Standard

1

Current Loop Voltage:

24VDC

1

12VDC (standard version)

2

Current Loop Current:

0 – 20mA (standard version)

1

0 – 30mA

2

Galvanic isolation:

1kV= 3-way

2

3kV= 3-way

3

Fibre connectors:

ST 850nm

1

SC 850nm

2

SMA 650nm

3

6.SPECIFICATION

TECHNICAL DATA

Transition 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

Depends on the baud rate,
a few kilometres.

Maximum 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 
UTPNx2x0,5(24AWG), shield
inside large interferences eg 
(STP Nx2x0,5(24AWG)).

Maximum baud rate

38,4 kbps

Transmission type

Asynchronous, full duplex, half duplex.

Standards

 Current Loop TTY : 0-20mA / 12VDC.

Optical signalization

PWR – green LED power supply,

RX - red LED data receiving from Current Loop,

TX - yellow LED data transmission through  Current Loop interface.

9

ADA-7021

Summary of Contents for ADA-7021

Page 1: ...User manual ADA 7021 Multimode Fibre Optic to Current Loop Converter 1 ADA 7021 io_ada 7021_v1 03_en Copyright 2001 2020 CEL MAR sp j...

Page 2: ...2 5 ISOLATION 5 3 INSTALLATION 5 3 1 ASSEMBLING 5 3 2 CONNECTION TO CURRENT LOOP DEVICE 5 3 2 1 CONNECTION TO DEVICE WITH PASSIVE TRANSMITTER PASSIVE RECEIVER 6 3 2 2 CONNECTION TO DEVICE WITH ACTIVE...

Page 3: ...This may result to short circuit and damage the device The device can not be used for applications that determine human life and health eg Medical ATTENTION The device is equipped in the laser transm...

Page 4: ...or Current Loop and power supply connections To Current Loop bus built on the ADA 7021 can be connected 2 devices operating in half duplex mode or full duplex mode in point to point topology Overvolta...

Page 5: ...ation of disruptions from environment is being recommended to apply multipair type shielded cables which shield can be connected to the earthing on one end of the cable arrange signal cables in the di...

Page 6: ...I1 I1 I2 I2 Rx Passive Receiver Active Transmitter Active Receiver Tx Tx Rx V V TX RX Current Loop Device FO connector Current Loop connector Current Loop connector Power Supply Multimode optical fibe...

Page 7: ...I2 I2 Rx Active Receiver Passive Transmitter Active Receiver Tx Tx Rx TX RX Current Loop Device FO connector Current Loop connector Current Loop connector Power Supply Multimode optical fibers type 5...

Page 8: ...reen LED PWR check the correctness of power connection polarity 4 ACTIVATION Converter can be powered after proper connection according to steps above If the connection was made properly green LED PWR...

Page 9: ...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 budge...

Page 10: ...5024 Emission of disruptions according to the standard PN EN 55022 Safety requiring According to the PN EN60950 norm Environment Commercial and light industrial Environmental Parameters Operating temp...

Page 11: ...11 ADA 7021...

Page 12: ...transmission converters with interface RS232 RS485 RS422 USB Current Loop Fibre Optic Converters and Ethernet or Wi Fi Please contact us to tell how you like our products and how we can satisfy you p...

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