4.1. DESCRIPTION OF SIGNALLING LEDS
LED
Description
PWR Signalling of Power Supply
RX
Signalling of data receiving through ADA-1020 converter from Current Loop port.
TX
Signalling of data transmitting from ADA-1020 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. RS232 INTERFACE – PIN DESCRIPTION OF DSUB-9F-DCE SOCKET
Pin Signal
Description
ADA-1020
1 (DCD)
Level of receiver signal
Connected with DSR
2 (TxD)
Data transmission via ADA-1020
Transmitter
3 (RxD)
Data receiving via ADA-1020
Receiver
4 (DSR)
Readiness of a device to receiving/transmitting date
Connected with DTR
5 (SG)
Signal ground
GND
6 (DTR)
Readiness of the ADA1020 to receiving/transmitting date
Connected with DSR
7 (CTS)
The device confirm receiving RTS signal from ADA-1020
Connected with RTS
8 (RTS)
The ADA-1020 confirm readiness of date receiving to device
Connected with CTS
9 (RI)
Call rate
NC
6. VERSIONS
ADA-1020 -
-
-
-
-
Order example:
Product Symbol:
ADA-1020-1-1-2-3
1
– Current Loop Voltage 24VDC
1
– Current Loop Type ± 20mA
2
– 1kV= galvanic isolation
3
– cover without inlets, plug-in screw
terminal block.
Power supply 10 – 30VDC
Product Symbol:
ADA-1020-1-1-2-3-48
1
– Current Loop Voltage 24VDC
1
– Current Loop Type ± 20mA
2
– 1kV= galvanic isolation
3
– cover without inlets, plug-in screw
terminal block .
48
- power supply 10 - 48VDC
Current Loop Voltage:
24VDC
1
12VDC
2
Current Loop Type:
± 20mA (active transmitter, passive receiver)
1
0 – 20mA (active/ passive transmitter, passive receiver)
2
Galvanic isolation:
1kV=, 3-way
2
3kV=, 3-way
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
Power supply :
From 10 to 30VDC stable
From 10 to 48VDC stable
48
7. SPECIFICATION
TECHNICAL DATA
Transmission Parameters
Interface
RS-232
Current Loop
Connector
DSUB-9 female
Screw terminal, wire max. Ø 2,5mm
2
.
Line length
15 m
Depend on baud rate eg. for BUS made
by UTP cable Cat.5E 4x2x05 (24 AWG)
and baud rate 300 bits/s can be 15 km.
Maximum number of connected device
1
1
11
ADA-1020
