background image

2.4. ISOLATION

Converter ADA-1028L has 3-way galvanic isolation on the levels 1kV= or 3kV=, depend on version described in section VERSIONS.

Fig 2. Isolation structure 

3. INSTALLATION

This chapter will show how to connect ADA-1028L to RS232, Current Loop CLO bus and power supply and how to use it.
In the purpose of minimization of disruptions from environment is being recommended to:
- use multipair type shielded cables,  which shield can be connected to the earthing on one end of the cable,
- arrange signal cables in the distance not shorter than 25 cm from powering cables.

3.1. EXAMPLE CONNECTION OF DEVICES WITH CLO INTERFACE

To connect the to Current Loop line  to the CLO ADA-1028L, should equip with a flat-head screwdriver, which allows to mount the
cables in the screw terminal block.

3.1.1. CONNECTION OF ONE DEVICE

Fig. 3. Example connection of device with Current Loop CLO to ADA-1028L

5

ADA-1028L

Power Supply

10 - 30VDC

RS232

Current Loop

CLO

3-WAY ISOLATION

C

LO

-

C

L

O

+

ENERGY METER 

WITH PASSIVE  CLO

V+

V-

Power

Vss-

Vss+

CLO+

NC

Rd

CLO-

ADA-1028L

ACTIVE

CLO

connector

RS232

connector

RS-232

Summary of Contents for ADA-1028L

Page 1: ...User manual ADA 1028L RS232 to Current Loop 2 wire CLO Converter 1 io_ada 1028l_v 1 11_en ADA 1028L Copyright 2001 2020 CEL MAR sp j...

Page 2: ...LATION 5 3 INSTALLATION 5 3 1 EXAMPLE CONNECTION OF DEVICES WITH CLO INTERFACE 5 3 1 1 CONNECTION OF ONE DEVICE 5 3 1 2 CONNECTION OF SEVERAL DEVICES 6 3 2 EXAMPLE CONNECTION OF DEVICE WITH RS232 INTE...

Page 3: ...omplete disable from the supply network is only after disconnecting the power supply circuit voltage Do not carry out the assembly or dis assembly of the device if it is enabled This may result to sho...

Page 4: ...interface of converter from CLO interface and protects devices connected to the RS232 interface from surges generated on line CLO and power circuit The converter has an internal low energy surge prot...

Page 5: ...cted to the earthing on one end of the cable arrange signal cables in the distance not shorter than 25 cm from powering cables 3 1 EXAMPLE CONNECTION OF DEVICES WITH CLO INTERFACE To connect the to Cu...

Page 6: ...example is shown below Fig 5 ADA 1028L connection to RS 232 port of computer 6 ADA 1028L CLO CLO V V Vss Vss CLO NC Rd CLO CLO CLO Energy meter no 4 with passive CLO CLO CLO Energy meter no 1 with pas...

Page 7: ...ion of Current Loop transmitter circuit When data is present the LEDs Tx and Rx should blinking LED Description PWR Signalling of Power Supply RX Signalling of data receiving through ADA 1028L convert...

Page 8: ...vice readiness to receiving data Connected with CTS inside ADA 1028L 9 RI Ring Indicator Not connected 6 VERSIONS ADA 1028L Order example Prod symbol ADA 1028L 1 1 1 A 2 3 1 standard electronic versio...

Page 9: ...CLO Electrical Parameters Power requirements 10 24 30 V DC Power Cable Recommended length of power cable up to 3m Power 2W Protection from reverse power polarization YES Galvanic Isolation 1kV or 3kV...

Page 10: ...10 ADA 1028L...

Page 11: ...11 ADA 1028L...

Page 12: ...ta 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...

Reviews: