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1
RS-232/RS-485/RS-422
Converter Manual
.General Introduction
Ⅰ
In order to carry on the remote data communication
between compuiter with different standard serial ports
and external equipments or interlligent devices,we
should realise exchange between standard serial ports.
This
converter
is
compatible
with
RS-232,RS-485,RS-422 standard, enable transfer RS232
signals to Balance Difference RS485 or RS422 signal.
Converter can extends RS232’s transmission distance to
1.2KM,drive by using special RS232 Charge Pump
without external power, get power without initialized
RS-232. Inside,there is zero-delay auto transfer, and
unique I/O Circuit automatically controlling Data flow
direction
without
any
hand-shake
signals(e.g.:RTS,DTR,etc). The exchange of Full-duplex
(RS-422) and Half-Duplex modes can be realised
without jumper,so it ensure the programm under the way
of RS232 full-duplex and half-duplex to run without any
modification,so to ensure it compatible with current
operation
software
and
interface
hardware,and
transmission speed as 300-115.2Kbps.It can be used
between main controllers,between main controller and
panel machine or external equipment to creat
point-to-point, point-to-multipoint remote multi-machine
telecommunication
network
and
multi-response
communications.
. Features
Ⅱ
Interface feature: meets or beats EIA-232 to
EIA-485 and EIA-422 Specifications (with external
power)
Electronic Interface: DB-9 hole connector of
RS-232,DB9 pin connector of RS485/RS422, posts
Working method: Asynchronous full-duplex,
half-duplex Differential transmission automatic
selection,no need jumper setting.
Transmission Media:shielded twisted pair or line.
Transfer speed:300-115.2 KBS.
Dimensions: 60 mmX35mmX18mm.
Using environment: -25
℃
to 70
℃
, and relative
humidity of 5% to 95%.
Transmission distance: 1,200 meters (RS-485
terminal); five meters (RS-232 terminal)
. Connect machine and signal
Ⅲ
HXSP-09F69 pin assignment
DB9 Female
（
PIN
）
HXSP-09F69 Connector signal
1
Protected
2
Receive data: SIN
（
RXD
）
3
Send data: SOUT
（
TXD
）
4
Data Terminal Preparation:DTR
5
Signal ground: GND
6
Data preparation: DSR
7
Request to send :RTS
8
Remove sending: CTS
9
Ring instructions: RI
RS-485/RS-422 output signal and connection
ends pin assignment
DB9 Male
（
PIN
）
Output
signal
RS-422 Full Duplex
connection
RS-485
Half-Duplex
Connection
1
T/R+
Send
（
A+
）
RS-485
（
A+
）
2
T/R-
Send
（
B-
）
RS-485
（
B-
）
3
RXD+
Receive
（
A+
）
Blank
4
RXD-
Receive
（
B-
）
Blank
5
GND
Ground line
Ground line
6
VCC
+5V
Standby
power input
+5V
Standby
power input
Ⅳ
. Hardware installation and application:
This product outlook applies DB-9/DB-9 universal
converter connetor, output connector with connection
post. It can be connected and dispatched by shielded
twisted pair or line easily. Connectiong principle is
“send+” receive other party’s “send+”,”receive-“ receive
other party’s “receive-“. RS-485 Half duplex mode
connect T/R+ with other party’s A+,T/R- with other
party’s B-. RS-422 full duplex mode connect
T/R+(SEND+) with other party’s A+,T/R- with other
party’s B-. RS-422 Full Duplex mode connect T/R+
(send+)
with
other
party’s
RXD+
(),
RXD+() with the other party’s TXD+( send+),
RXD-( receive-) with the other party’s TXD-(send-),
( send+) with the other party’s RXD+( ),
T/R-(send-) with the pther party’s RXD- (receive-).
