ATC -107N User Manual

ATC-107N
RS-232/RS-422/RS-485
Industrial Class Wall-mounted
Photoelectric Isolation Interface
Converter
User's Manual
I. General introduction:
ATC-107N Photoelectric Isolation Interface Converter
is compatible with RS-232C, RS-422, RS-485 standards
and capable of converting single end RS-232 signal into
RS-422 or RS-485 signal of balanced difference. The
built in photoelectric isolator can offer 3500V isolation
voltage and the grade 2 rapid Transient Voltage
Suppressor (TVS) can effectively inhibit lightning and
ESD, provide 1000W lightning strike and surge
protection power on each line and prevent lightning
strike and common code interference. Connect PC, IPC,
or portable computer via a DB9 female connector at
RS-232 interface, and connect RS-422, RS-485 end via
convenient 6-bit plug-in terminal. The RS-485 supports
dual-line half duplex, namely, the only two lines of
RS-485 shall both send and receive data. Handshake
signal (e.g. RTS, Request To Send) usually controls the
data direction. The inner circuit
Photoelectric Isolation Interface Converter can detect
data direction and switch to control it automatically,
conveniently to form a RS-485 network without any
shake hand signal. This kind of RS-485 control is fully
transparent and need no software amendment for the
former working modes basing on RS-232.
ATC-107N Photoelectric Isolation Interface Converter
can provide credible connection for point to point, point
to multi-point communication. The point to multi-point
allows connecting 128 RS-422 or RS-485 interface
devices with data transmission speed of 0-115.2KBPS.
The 3 power supply and data flow indication light can
indicate malfunction. It supports communication modes
including RS-232C to RS-422, RS-232 to RS-485
conversion.
II. Performance parameter
1. Interface feature: interface is compatible with EIA/TIA
RS-232C, RS- 485/RS-422 standard
2. Electric interface:RS-232C interface RJ-45 connector
RS-422/RS-485 interface DB9 connector or terminal
3. Transmission media: twisted-pair cable or shielded cable
4. Working mode: asynchronous half or full duplex
5. Signal indication: 3 signal indication lights indicate TXD,
RXD and PWR
6. Isolation: isolation voltage 3500VRMS/500VDC
7. Transmission speed:
maximum 115.2K BPS to 1.2KM
8. Protecting grade:
RS-232 interface 600W lightning strike and surge protection
RS-422,RS-485 interface :
1000W lightning strike and surge protection on each line
9. Transmission distance: 0-5 kilometers (115200-600BPS)
10. Size: 95mmx85mmx26mm
11. Working environment: -25 ℃ to 70℃,
95% relative humidity
III. Definition of connector and signal
of ATC-107N
RS-232 interface Pinout:(DB9 female connector )
DB9 hole
PIN2
PIN3
PIN5
RS-422/485 Pinout: (6-bit terminal from the left to right))
Terminal
No
RS-422
RS-485
RS-422/485 Pinout: (DB9 male connector)
DB9
PIN
PIN1
PIN2
PIN3
PIN4
PIN5
IV. Installation setup and application:
DB9 cable
38.4K BPS to 2.4KM
600 BPS to 5KM
5% to
RS-232 definition
TXD
RXD
GND
1 2 3 4 5
T+ T- R+ R- VIN GND
485+ 485- - - VIN GND
RS-422 RS-485
T- 485-
T+ 485+
R+ -
R- -
Protection GND Protection GND
Please read the User's Manual carefully before installing
ATC-107N Photoelectric Isolation Interface Converter.
Connect the communication cable of the product with
RS-232C interface, power adapter with DC-IN socket, and
RS-422/485 end with RS-422 or RS-485 device according
to DB9 pin definition or 6-bit terminal definition. Since the
inner conversion of ATC-107N interface converter has
adopted the self-adapting, the user need not change any
setting when completing RS-232 to RS-422/485 conversion
and can directly connect device according to RS-422/485
interface definition.
ATC-107N interface
communication modes:
1. point to point/4 wire full duplex
2. point to multi-point/4 wire full duplex
3. point to point/dual-line half duplex
4. point to multi-point/ dual-line half duplex
V. Sketch map for communication connection(
(take RS-422/485 connecting DB9 PIN for example)
RS-232 to RS-422 conversion
1. RS-232 to RS-422 point to point/4 wire full duplex
communication
2. RS-232 to RS-422 point to multi-point/4 wire full
duplex communication
6
converter supports following 4