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model Ⅲ supports 220VAC power supply
input.
Power
supply
100~240VAC/DC.
Note:
Power ON operation: first insert the power supply
terminal block into the device power supply interface,
and then plug the power supply plug contact.
Power OFF operation: first unpin the power plug, then
remove the terminal block wiring part; please note the
operation order above.
【Serial Port】
RS-232 serial port
Model Ⅱ provides 1 RS-232 serial port and
adopts DB9 female. The pin definition as
follows:
Pin
2
3
RS-232
OUT
IN
RS-485/422 serial port
Model Ⅲ provides 1 RS-485/422 serial port
and adopts 5-pin terminal blocks. The pin
definition as follows:
Pin
1
2
3
RS-485
GND
-
-
RS-422
GND
R-
R+
RS-232/485/422 serial port
Model
Ⅰ
provides
RS-485/422 serial port and adopts 8-pin
terminal blocks. The pin definition as
follows:
Pin
1
2
3
4
5
RS-232 -
-
-
-
-
RS-485 D+
D-
-
-
GND -
RS-422 T+
T-
R+
R-
GND -
【Checking LED Indicator】
The device provides LED indicators to monitor the device
working
status
with
a
comprehensive
troubleshooting; the function of each LED is described in the
input
range:
table as below:
LED
State
ON
PWR
OFF
ON
RXD
Blinking
OFF
Blinking
TXD
OFF
【Specification】
Standard
Standard
Interface
5
RS-232
GND
RS-485/422
RS-232/485/422
Fiber port
4
5
Indicator
D+
D-
T+
T-
Power Supply
1
RS-232
or
Input power supply
6
7
8
GND
IN
OUT
-
-
-
-
Access terminal
Environmental Limits
simplified
Description
The device is powered on normally
The device is not powered on or in
abnormal condition
The fiber port is in abnormal
condition or disconnected
The fiber port is receiving data
No data receiving in fiber port
The fiber port is transmitting data
No data transmission in fiber port
EIA RS-232, RS-485, RS-422
DB9 female
5-pin terminal blocks
RS-232 or RS-485/422 serial
port, 8-pin terminal blocks
SC/FC/ST interface optional
Power supply indicator, fiber port
data receiving and alarm
indicator, fiber port data sending
indicator
Model Ⅰ:
External power supply:
12~48VDC
Model Ⅱ, Model Ⅲ:
External power supply: 5VDC
Built-in power supply: -48VDC or
220VAC
DC round-head, terminal block
or three hole socket
Model Ⅰ:
Operating temperature: -40~75℃
Storage temperature: -40~75℃
Temperature range
Model Ⅱ, Model Ⅲ:
Operating temperature: -10~60℃
Storage temperature: -40~85℃
Operating humidity
5%~95% (no condensation)
【Typical Application】
Fiber modem can extend the transmission distance of serial
signal over fibers, which should be used in pairs. The device
supports three types of serial port, RS-232/485/422. Users
can choose one of them to connect local terminal and remote
terminal. Two or three different types of serial ports are not
supported at the same time.
When connecting local and remote fiber ports, please
configure the parameters of fiber ports at both ends in the
same
way,
such
as
Transmit/Receive
transmission distance, fiber type and so on.
The pin connection modes of each type of serial port are as
shown in the picture below.
wavelength,
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