User Manual

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Power Supply
The A52/A53 converters are designed for standard +24 VDC
unregulated power for use in industrial environments. Operation is
guaranteed when using any power supply between +9 and +30
VDC at 350 mA. An optional power adaptor (9 V 1.5 A UL 110/230
V) can support up to 4 converters (see the following diagram).
A52/A53 Converter Connection Diagram
RS-232 Pinouts
10-pin RJ45 Jack
The RJ45 port for the RS-232 signal is
shown in the following figure.
A52/A53 RJ45 Connector Pinouts
Pin RS-232 Pin RS-232
1 DCD (Always On) 6 RxD
2 DSR 7 GND
3 RTS 8 CTS
4 GND 9 DTR
5 TxD 10 ---
NOTE
Each group of (DTR, DSR) pins are shorted, freeing users
from the hardware flow control cable wiring problem. For
this reason, we list two types of RS-232 cable wiring below.
Type 1: To connect the RS-232 side of A52/A53 to a DTE (e.g., PC
COM1/2) or DCE. (Be sure to check the precise DTE/DCE
pinouts. The following DTE/DCE pinouts are just an
example.)
A52/A53
RJ45
DTE Device
DB25 Male
DTE
Device
DB9 Male
DCE Device
DB25 Female
DCD 8 1 8 DCD
DSR 2 20 4 6 DTR
RTS 3 5 8 4 CTS
GND 4 7 5 7 GND
TxD 5 3 2 2 RxD
RxD 6 2 3 3 TxD
GND 7 7 5 7 GND
CTS 8 4 7 5 RTS
DTR 9 6 6 20 DSR
Type 2: You can connect the RS-232 side of the A52/A53 to a DTE,
such as a terminal or PC COM1/2, with 3-pin wiring if you
don’t need hardware flow control.
A52/A53
RJ45
DTE Device
DB25 Male
DTE Device
DB9 Male
DCE Device
DB25 Female
TxD 5 3 2 2 RxD
RxD 6 2 3 3 TxD
GND 7 7 5 7 GND
RS-422/RS-485 Pinouts
The RS-422/RS-485 port with RJ45 connector or Terminal Block
Connector is depicted as follows.
RS-422
Pin RS-422 with RJ45 Pin RS-422 with
Terminal Block
1 TxD – (A) 1 TxD + (B)
2 RTS – (A) 2 TxD – (A)
3 RTS + (B) 3 RxD + (B)
4/7 SG 4 RxD – (A)
5 TxD + (B) 5 SG
6 RxD + (B) 6 Power GND
8 CTS + (B) 7 VCCA (9V)
9 CTS – (A) --- ---
10 RxD – (A) --- ---
NOTE
Pins 6 and 7 of the Terminal Block are for Power GND and
Power Input, which can be used instead of a power adaptor.
Be careful NOT TO confuse RS-422/RS-485 GND with
Power GND.
SG: Signal Ground
RS-485
Pin RS-485 with RJ45 Pin RS-
485 with Terminal Block
1 Data – (A) 1 Data + (B)
4 SG 2 Data – (A)
5 Data + (B) 5 SG
7 SG 6 Power GND
--- --- 7 VCCA 9 V
--- --- 8 ---
NOTE
Pins 6 and 7 of the Terminal Block are for Power GND and
Power Input, which can be used instead of a power adaptor.
Be careful NOT TO confuse RS-422/RS-485 GND with
Power GND. SG: Signal Ground
CE WARNING
This is a
Class A product. In a domestic environment, this
product may cause radio interference in which case
the user may be required to take appropriate measures.
Federal Communications Commission Statement
FCC - This device complies with part 15 of the FCC Rules. Operation
is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation.
FCC WARNING
This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful
interference when the equipment is operated in a
commercial environment. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction
manual, may cause harmful interference to radio
communications. Operation of this equipment in a
residential area is likely to cause harmful interference in
which case the user will be required to correct the
interference at his own expense..
1 2 3 4 5 6 7
RJ45 Connector
Terminal Block Connector
1 2 3 4 5 6 7 8 9 10
1 10