Hexin Technology HXSP-2108C Industrial Level RS-232 to RS-485/RS-422 Converter User Manual
Hexin Technology Hardware
HXSP-2108C Industrial Grade
RS-232/RS-485/RS-422 Converter
User Manual
Product introduction
HXSP-2108C is an industrial-grade optical isolation multifunctional
converter
with
external
power
supply,
it
compatible
with
RS-232/RS-485/RS-422 standard. It can change the single-ended
RS-232 signal to balanced RS -485/RS-422 signal, The internal
optoelectronic isolator and DC Voltage stabilizer can effective lightning
suppression , and the ESD offer 600W Surge Protection for each line, it
can avoid the lightning strike and prevent interference effectively.
RS-232 interface use the DB9 female connector connect with the serial of
computer ,on the other side RS -485/RS-422 use the DB9 male connect
with 6 terminal board. Since the RS-485 support two wire half duplex,
which means the RS-485 only have two lines to receive data and send
data. Handshaking signal(RTS Request To Send) usually control the
direction of data sending, the inner circuit of HXSP-2108C converter is
able to auto sensing the direction of data flow, and switch to ENABLE
CONTROLS
automatic. A RS-485 network can be built convenient without
any handshaking signal; the RS-485 ENABLE CONTROLS is full
transparent, no need to modify any software for the old working method
based on RS-232. HXSP-2108C converter comes with external power
supply, the characteristic have small in design, long transmission
distance, performance stable, etc. it is mainly used for the field of
electricity, industrial automatic control, IC card billing system and time
attendance, one card solution, access control system, parking system,
and so on.
Specification
1. Standard: Accord EIA RS-232, RS-485, RS-422 standard.
1. Connector: DB9 female on RS -232 side, DB9 male with 6 terminal block
on RS-485/RS-422 side.
2. Work methods: asynchronous, point to point or multi -point, 2 wire
half-duplex.
3. Transmission medium: twisted pair cable or shielded Wire
4. Baud rate: 300~115000bps.
5. Signal indication: three signal indication LEDs(TXD,RXD,POWER).
6. Surge Protection: 600W.
7. ESD Protection: 15 KV.
8. Isolation Voltage: 3.5KV Instantaneous, 500V DC continuous
10. Transmission distance: 0~5KM.
11. Dimension: 90mm x 65mm x 25.5mm.
Pin Definition：
RS-232 pin definition
D B 9 F e m a l e
1
2
3
4
5
6
7
8
RS-232
DCD
TXD
RXD
DTR
GND DSR RTS CTS
RS-485/RS-422 pin definition
D B 9 M a l e
1
2
3
4
5
6
RS-422
T-
T+
R+
R-
GND
+9V
RS-485
485-
485+
GND
+9V
Application
Please read the instruction carefully before using HXSP-2108C converter, the
9pin female side of RS-232 cable comes with HXSP-2108C connect to the
RS-232 connector of Main Host Computer. And the other side connects to the
RS-232 connector of the HXSP-2108C. The power AC Adapter connect to +9V
connector. Connect RS-45 or 6 terminal blocks on RS-485/RS-422 as
required, when connect all the terminal blocks, it must be according to the Pin
Definition.HXSP-2108C converters support 4 kinds of communication method
as below:
(1) Point to point /four wires full-duplex
(2) Point to points /four wires full-duplex
(3) Point to point /two wires half-duplex
(4) Point to points / two wires half-duplex
The factory settings is auto adaptation status, when the customer use external
connection as RS-485 , the HXSP-2108C will be in the half-duplex RS-485
status , and when the customer use external connection as RS-422 , the
HXSP-2108C will be in the full-duplex RS-422 status.
(1) When the HXSP-2108C connects as RS-232/RS-422, the device connects
as RS-422 connection method.
A. RS-232/RS-422 communicate as point to point four wire, asynchronous,
full-duplex method, this method is mainly used for control -side equipment
connector is RS-232, and the connector of equipment un der control is RS-422,
The two side can not communicate directly because of disaccord of two side
electrical specialty, HXSP-2108C converter can be used for transparent
change the RS-232 signals to RS-422 signals.