Hexin Technology HXSP-2108B Commercial Level RS-232 to RS-485/RS-422 Converter User Manual
Hexin Technology Hardware
HXSP-2108B RS-232/RS-485/RS-422
Converter Instruction
Product introduction
HXSP-2108B is a 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, 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, Or you can choose the RJ-45 port connect with the
device which has the RJ -45 connector . 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 usually control the direction of
data sending, the inner circuit of HXSP-2108B 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-2108B 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.
2. Connector: DB9 female on RS -232 side, DB9 male with 6 terminal block
on RS-485/RS-422 side or RJ-45 connector.
3. Work methods: asynchronous, point to point or multi -point, 2 wire
half-duplex.
4. Transmission medium: twisted pair cable or shielded Wire
5. Baud rate: 300~115000bps.
6. Signal indication: three signal indication LEDs(TXD,RXD,POWER).
7. Surge Protection: 1500W.
8. Transmission distance: 5 meters (RS-232 side) and 1800 meters
(RS-485/RS-422 side).
9. Dimension: 93mm x 23mm x 62mm.
10. Environment: -10℃ to 85℃ working temperature, 5% to 95% relative
humidity.
11. Loading Capacity: 32~128 units device.
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
FCN
RS-485
485-
485+
GND
FCN
RJ-45 pin definition
RJ-45
1
2
3
4
5
6
7
8
RS-422
T+
T-
R+
R-
GND
GND
RS-485
485-
485+
GND
GND
RJ-45 connection diagram
1
8
8
Male
1
F e ma l e
Application
Please read the instruction carefully before using HXSP-2108B converter, the
9pin female side of RS-232 cable comes with HXSP-2108B connect to the
RS-232 connector of Main Host Computer. And the other side connects to the
RS-232 connector of the HXSP-2108B. The power AC Adapte r 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-2108B 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-2108B will be in the half-duplex RS-485
status , and when the customer use external connection as RS-422 , the
HXSP-2108B will be in the full-duplex RS-422 status.
(1) When the HXSP-2108B 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-2108B converter can be used for transparent
change the RS-232 signals to RS-422 signals.