u Three 10/100M adaptive electric ports and two 100M single mode/multi-mode optic ports
u Quick self-healing technology：OBRing（OB Real-Time Ring）
u Any two ports can be used in self-healing ring net, support two independent self-healing ring
u Self-healing ring can be any combination of two-fiber, single-fiber and twisted-pair
u Support MODBUS/UDP remote monitoring and management software
u 12V-36V DC redundant dual power design
u Support QoS，each port can define stream priority
u Support port mirror function.
u Key running parameters monitoring and alerting
u MTBF: >1000 thousand hours
u No fan, -40℃～ +85℃ operating environment temperature
Military grade anti-surge and over-voltage protection
l Industrial control system
l Highway monitoring/communication system
l City intelligent traffic monitoring/communication system
l Electric power security monitoring system
l Water conservancy security monitor system
l Security monitoring system in large-scale enterprises
l Military communication
Optical specifications
Wave length：1310/1550nm
Fiber-out power：0 dBm ~ -3 dBm/-5 dBm ~ -10 dBm
Receive sensitivity：≤-36dBm
Single wavelength bandwidth：155M
Ethernet specifications
Ethernet standards：IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
ANSI/IEEE 802.3 NWay
IEEE 802.3x stream control
OBRing self-healing ring：any two ports，self-healing time is less than 250 ms
Self-healing ring number: two self-healing ring at most
Management and monitoring: MODBUS/UDP protocol
Communication protocol ：CSMA/CD
Switch mode ：storage and transfer
Storage and transfer rate：148,800 pps
packet : 64bytes ~ 1522 bytes
packet filtering : can filter broadcast packets
MAC address table: 8/4K , auto-learning and refresh
RJ45：10M/100M adaptive，MDI/MDIX auto-switch，
TD/RD auto-turning
Transmission distance：2KM（multi-mode fiber），20KM－120KM（single-mode fiber），
Port mirroring : any 2 ports
VLAN: support port based VLAN and IEEE802.1Q
QoS：support propriety configuration of QoS, CoS and ToS
Alerting output : 0.3A
Mechanical and Electrical Features
Power: 12～36 VDC（Redundant dual power）
Dimension: 136x82x44 mm
Enclosure: IP30，DIN-Rail or mounting installation
Weight: 0.65 Kg
Material: aluminum
Surface technology: twice oxidation
Color: silver gray
Environment
operating temperature：－40℃～74℃
storage temperature：－55℃～85℃
humidity: 0~95% , no condensation
System parameters
（MTBF）: >1,000,000 hours
EMI standard: FCC/CE
Safety standard: UL/CE
Vibration: IEC60068-2-32 （Free fall）
IEC60068-2-27 （Shock）
IEC60068-2-6 （Vibration）
Anti-surge protection：military grade
Connection ports
Data: RJ45 （electric port）
SC（optic port）
Power: 5 pins European connector
Alerting output: 5 pins European connector
P1：Green light on means main power input is normal
Green light off means no main power input
P2：Green light on means sub power input is normal
Green light off means no sub power input
OBRing：multi-function indicator, four status:
u on：SHR（1 or 2）in normal working status，
u off：no SHR is setting
u flicker status 1（50％ on，50％ off）：SHR protection status, the trouble node is not border upon the switch；
u flicker status 2（10％ on，90％ off）：SHR protection status, and the trouble node is close to the switch. That means the trouble node is between the switches with the two OBRing indicator flicker status 2.
Data indicators：PORT1-PORT5
Corresponding to 5 data port status, Multi-functional yellow green indicator represent 5 statuses：
u on：port is connected correctly, no data communication;
u off：there is no connection or the connection is wrong. Make sure type 5 or higher twisted-pair or above is used and RJ45 is inserted into the corresponding port;
u flicker: port is connected correctly，with normal data communication；
u green: the bit rate is 100M;
u yellow: the bit rate is 10M;
ALARM: multi-functional yellow green indicators, represent 6 statuses：
u yellow on：unrecovered problem discover during self check，return to the manufacture；
u green on：main power, sub power, SHR status and inner self check are all normal；
u off：failure in main or sub power or SHR in protection status；
u flicker status 1（ flicker quickly）:recognize different switches through man-made flicker by management software；
u flicker status 2（ quickly flicker for 5 seconds, wait 1 second）: initialization;
u flicker status 3（30％ time on, 70％ time off）: have recoverable error，cold restart or hot restart is needed
