3One data 277 User manual
Your Serial and Data Communications Expert
Shenzhen 3onedata Technology Co.,Ltd
Model277
RS-232/485/422 to Fiber Converter
(SS：single mode single fiber)
Introduction:
Model277 is one kind can offer RS-232/485/422 serial port carry
transparent optic fiber modem of transmission to get end to user, no
need patch cords set up, switch over automatically, and can detect
and examine the signal speed automatically, zero delays time to
transmit automatically. Model277 adopt optic fiber transmit, have
isolate protection, data privacy is fine, working steady, data, such
threats to communication equipment as the wave is welled up and
interfered with electromagnetically that the effective one has
prevented the abominable environment from being struck by
lightning, can work in the abominable and dangerous environment
reliably.
Can be used in occasions such as various industrial control, course
controlling, traffic controlling and intellectual district , especially
suit the bank, electricity and interfering with environment
department and system with the special requirement
electromagnetically.
Packing List:
Model277 is shipped with following items.
1. Model277×1
2. User manual ×1
Features:
1. Extend RS232/485/422 transmission
2.Transmit asynchronously, point-to-point to use, speed reach
500Kbps
3. 600W surge protection, 1500W surge protection
4. Examine signal speed automatically, zero delay time
5. Plug-and-Play (Device is hot-pluggable, Data format
Auto-sensing & Self-adjusting)
Your Serial and Data Communications Expert
Shenzhen 3onedata Technology Co.,Ltd
6.Only one RS232/RS485/RS422 port can be connected at a given
time.
7. 9~36VDC power supply Input(2 bit terminal block)
Pinout Configuration:
Power, RS-232/485/422
RS-232/485/422 interface adopt 8 bit terminal block, the power
supply input is 2 bit terminal block.
Power:
DCIN 9~36VDC input
GND power ground
RS-485/422:
T+/D+ RS-422 send+/485+(A)
T-/D- RS-422 send-/485-(B)
R+ RS-422 receive+
R- RS-422 receive-
GND Signal ground
RS-232:
GND Signal ground
IN RS232 input (RXD)
OUT RS232 output (TXD)
Optical fiber interface
The optical fiber connection supports single-mode single fiber
For Link : A-to-B(The mark A device link to the mark B
device)
Your Serial and Data Communications Expert
Shenzhen 3onedata Technology Co.,Ltd
LED indications:
Specifications:
Standards: EIA RS-232C, RS-485, RS422 standard
Transfer rate: 300~500Kbps, auto test serial signal rate detect signal
speed automatically, zero delay time,
Transfer distance: RS-485/422 side: 1.2Km(9600bps)
RS-232 side: no less than 5m
Fiber optic:20,25,40,60,80,100,120km(SM), optional
Max number of drops:RS385/422: 128drops
Fiber connector: 1×SC, 1×FC optional
Wavelength: 1310T/1550R (Device A) 1310R/1550T(Device B)
Fiber optic cables:Single Mode:8.3/125,8.7/125,9/125 or 10/125 um
600W surge protection;1500W static protection
Power input: +9V~36VDC power supply input(2 bit terminal block)
Power
Green, Power supply indication
On: power joined; Off: no power connect
RxD
Green light, optic fiber interface receive
data point out and concurrently mere port
report an emergency and ask for help or
increased vigilance, on: There are data that
are received; Off: Have data receive
TxD
Green light, optic fiber interface send
datum instruct
On: Have data send; Off: no data send
Your Serial and Data Communications Expert
Shenzhen 3onedata Technology Co.,Ltd
Dimensions: 100.0mm×69mm×22.0mm
Operating temp: -25°C to70°C
Storage temperature: -40 to 85°C
Operating humidity: 5% to 95%(no condensation)
Warranty: 5 years
Approvals: FCC,CE,RoHS approvals
Applications:
Figure 1: Extending the RS232 data distance
Figure 2: Extending the RS485 data distance
Figure 3: Extending the RS422 data distance
Your Serial and Data Communications Expert
Shenzhen 3onedata Technology Co.,Ltd
Installation:
Model277 provides DIN-rail and wall mounting two types of
installation.
Wall mounting installation
DIN-Rail Installation
Troubleshooting instructions:
Check the connections according to the connection diagrams. Make
sure the power LED is ON and the RX & TX LEDS are OFF when
there is no data communications. Perform a loop back test on two
Model277 converters. Attach the two Model277 converters by
Your Serial and Data Communications Expert
Shenzhen 3onedata Technology Co.,Ltd
attaching the device A to the device B using a SS Fiber Optic Cable.
Connect the Model277 RS-232 port or RS-485 port or RS-422 port
to a PC. Send ASCII Characters from a hyper terminal program
from one converter to the other. This will test both the transmit and
receive functions.
Model277 FAQ:
LED indicator OFF
1.Power supply insert incorrect
2.Choice incorrect power supply( 9~36VDC)
LED indicator instruction
1.PWR ON: Product work normally
2.TXD indicator flash: optic port transfer data
3.RXD indicator flash: optic port receive data
4.RXD ON: optic connection incorrect（electric port in
connection, used to optic port alarm indicator）
Communication failure
1.Using incorrect power supply
2.Optic port or electric port connection incorrect.
3.Optic fiber port do not inosculate to the equipment interface
4.The equipment come from different supplier
5.Device A connect to device A or device B connect to device B
6.The optic fiber connector is incorrect, high error code,
attenuation large.
Certifications:
Shenzhen 3onedata Technology Co.,Ltd
Tel: +86-755-26702688 Fax: +86-755-26703485
www.3onedata.com
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