3One data 277/B User manual

Your Serial and Data Communications Expert
Shen zhen 3onedata Technology Co.,Ltd
Model277/B
Model277/B
Model277/B
Model277/B
RS-
RS-
RS-
RS-
485/422
485/422
485/422
485/422
to
to
to
to
Fiber
Fiber
Fiber
Fiber
Converter
Converter
Converter
Converter
(SM
(SM
(SM
(SM
&
&
&
&
MM)
MM)
MM)
MM)
I
I
I
I
ntroduction
ntroduction
ntroduction
ntroduction
:
:
:
:
M odel 277 /B is one kind can offer RS-485/422 serial port carry
transparent optic fib er 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/B adopt optic fib er transmit,
hav e 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
r eliably.
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
Packing
Packing
Packing
L
L
L
L
ist
ist
ist
ist
:
:
:
:
Model 277/B is shipped with following items.
1. Model277/B ×1
2. 5VDC power adapter ×1
2. User manual ×1
F
F
F
F
eatures:
eatures:
eatures:
eatures:
1. Extend RS-485/422 transmission
up to 120km with single-mode( SM )
up to 2km with multi-mode(MM)
2. Transmit asynchronously, point-to-point to use, speed reach
500 Kbps
3. 600W surge protection, 1500W surge protection

Your Serial and Data Communications Expert
Shen zhen 3onedata Technology Co.,Ltd
4. E xamine signal speed automatically, zero delay time
5. Plug-and-Play (Device is hot-pluggable , Data format Auto-
sensing & Self-adjusting )
P
P
P
P
inout
inout
inout
inout
Configuration:
Configuration:
Configuration:
Configuration:
Power
Power
Power
Power
the power supply input is 5VDC-IN.
Power:
Power:
Power:
Power:
DCIN
DCIN
DCIN
DCIN
5VDC input
RS-485/422,Optical
RS-485/422,Optical
RS-485/422,Optical
RS-485/422,Optical
fiber
fiber
fiber
fiber
interface
interface
interface
interface
Optical
Optical
Optical
Optical
fiber
fiber
fiber
fiber
interface:
interface:
interface:
interface:
Optic fib er interface need use in pairs, OUT port is fiber send side ,
connect another long-range light of interface fiber receive end IN;
IN port is fiber receive side , connect long-range same fiber send
side :
Optic fib er s spent both ends mark the label (the following picture
show: A-A, B-B, can also mark another: A1-A2, B1-B2), in order to
use.

Your Serial and Data Communications Expert
Shen zhen 3onedata Technology Co.,Ltd
NOTE:
NOTE:
NOTE:
NOTE:
SC, ST or FC, for optic fiber interface, SM is look the
same to MM for form. For example,Model277 SM /B /SC,the optic
fiber interface(SC) is look the same to Model277 MM /B /SC.
RS-485/422:
RS-485/422:
RS-485/422:
RS-485/422:
MODEL277/ B RS-485/422 interface adopt 5 bit terminal block.
RS-485/422:
RS-485/422:
RS-485/422:
RS-485/422:
T+/D+
T+/D+
T+/D+
T+/D+
RS-422 send+/ 485 +(A)
T-/D-
T-/D-
T-/D-
T-/D-
RS-422 send-/ 485 -(B)
R+
R+
R+
R+
RS-422 receive+
R-
R-
R-
R-
RS-422 receive-
GND
GND
GND
GND
Signal ground
LED
LED
LED
LED
indications:
indications:
indications:
indications:
Specifications:
Specifications:
Specifications:
Specifications:
Standards : EIA RS -485,RS-422 standard
Transfer rate: 300~500K bps, auto test serial signal rate detect signal
speed automatically, zero delay time,
Transfer distance: RS-485 /422 side: 1.2K m (96 00bps)
Fiber optic:20,25,40,60,80,100,120km(SM),
2,5 km(MM) optional
Fiber connector: 2 ×SC, 2 × ST, 2×FC optional
Wavelength:1310nm
Fiber optic cables:Single Mode:8.3/125,8.7/125,9/125 or 10/125 um
Power
Power
Power
Power
Green , Power supply indication
On: power joined; Off: no power connect
RxD
RxD
RxD
RxD
G reen light, optic fib er 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
TxD
TxD
TxD
Green light, optic fib er interface send
datum instruct
On: Have data send ; Off: no data send

Your Serial and Data Communications Expert
Shen zhen 3onedata Technology Co.,Ltd
Muti-Mode:50/125,62.5/125 or 100/125 um
600 W surge protection;1500W static protection
Power input: +5VDC power supply input
Dimensions: 94.0mm ×71mm ×26.0mm
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
Applications
Applications
Applications
:
:
:
:
Figure
Figure
Figure
Figure
1
1
1
1
:
:
:
:
Extending
Extending
Extending
Extending
the
the
the
the
RS485
RS485
RS485
RS485
data
data
data
data
distance
distance
distance
distance
Figure
Figure
Figure
Figure
2
2
2
2
:
:
:
:
Extending
Extending
Extending
Extending
the
the
the
the
RS422
RS422
RS422
RS422
data
data
data
data
distance
distance
distance
distance
Installation
Installation
Installation
Installation
:
:
:
:
Model277/B provides DIN-rail and wall mounting two types of
installation.
Wall
Wall
Wall
Wall
mounting
mounting
mounting
mounting
installation
installation
installation
installation

Your Serial and Data Communications Expert
Shen zhen 3onedata Technology Co.,Ltd
DIN-Rail
DIN-Rail
DIN-Rail
DIN-Rail
Installation
Installation
Installation
Installation
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
instructions:
instructions:
instructions:
instructions:
1. Electric port and optic port inconnection, insert the power
supply, PWR light, RXD light.
2. Use optic fiber short the optic port IN and OUT, RXD OFF.
3. Perform a loop back test on two Model277/B converters. Attach
the two Model277/B converters by attaching the FIBER IN to the
FIBER OUT using a SM or MM Fiber Optic Cable ( Make sure the

Your Serial and Data Communications Expert
Shen zhen 3onedata Technology Co.,Ltd
converter fiber optic cables are connected properly ,if Model277/B is
SM,using SM; If Model277/B is MM,using MM) . Connect the
Model277/B 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/B
Model277/B
Model277/B
Model277/B
FAQ:
FAQ:
FAQ:
FAQ:
LED
LED
LED
LED
indicator
indicator
indicator
indicator
OFF
OFF
OFF
OFF
1. Power supply insert incorrect
2. Choice incorrect power supply ( 5 VDC )
LED
LED
LED
LED
indicator
indicator
indicator
indicator
instruction
instruction
instruction
instruction
1. PWR ON: Product work normally
2. TXD indi c ator 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
Communication
Communication
Communication
failure
failure
failure
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. Single-mode optic fiber uses multi-mode equipment or multi-
mode optic fiber uses single-mode equipment
6. The optic fiber connector is incorrect, high error code,
attenuation large.
Certifications:
Certifications:
Certifications:
Certifications:
Shenzhen
Shenzhen
Shenzhen
Shenzhen
3onedata
3onedata
3onedata
3onedata
Technology
Technology
Technology
Technology
Co.,Ltd
Co.,Ltd
Co.,Ltd
Co.,Ltd
Tel: [phone] Fax: [phone]
www.3onedata.com