1-8 Optical Directions Optic Fiber Convergence Type 16-channel Dry Contact Modem

8 optical direction convergence dry contact optical terminal equipment, with 8 SC/FC/LC optical fiber modules, can connect 8 optical directions, divided into convergence center equipment and node equipment. The convergence end can output a total of 16 dry contact interfaces, and can also output Modbus RTU or Modbus TCP. When outputting physical dry contact, the node equipment provides up to 1-2 dry contact. When outputting Modbus RTU or Modbus TCP, the node equipment provides up to 1-16 dry contact, which can be input or output, connected by optical fiber in the middle;

This product solves the problems of electromagnetic interference, ground ring interference and lightning damage, improves the reliability, security and confidentiality of data communication, and can be widely used in various industrial control, process control and traffic control occasions. It is particularly suitable for industry, power and departments and systems with special requirements for electromagnetic interference environment;

● Anodized aluminum alloy shell, IP40 protection level, can withstand the test of harsh environment;

● With 8 SC/FC/LC fiber modules, it can connect 8 optical directions, divided into two types of equipment: aggregation center equipment and node equipment

● The aggregation end can output a total of 16 dry contactinterfaces, or Modbus RTU or Modbus TCP. When outputting physical dry contact, the node equipment provides up to 1-2 dry contact. When outputting Modbus RTU or Modbus TCP, the node equipment provides up to 1-16 dry contact, which can be input or output, connected by optical fiber in the middle;

● The input dry contactis automatically detected. When the input state is what state, the dry contact output is what state, which is convenient for project commissioning;

● When the dry contactis in the power-on state or the optical fiber is not connected, the other switch states are stable, and there will be no random action state;

● It can support dry contact dry contact, or wet contact (optical MOS relay), high reliability and high action rate;

● Each motherboard can be connected to the node equipment with a total dry contactof no more than 16 channels through a switch and the aggregation end equipment;

● The equipment comes with Modbus RTU or Modbus TCP interface, can send and receive data through Modbus protocol (optional);

● The lightning protection of the switch interface reaches IEC61000-4-5 (8/20μS) differential mode: 6KV, impedance (2Ω); common mode: 6KV, impedance (2Ω) standard;

● Meet the requirements of industrial level 4 electromagnetic compatibility;

● Super strong lightning protection function: lightning protection, anti-inductive high voltage, anti-surge, etc.;

● No fan, efficient heat dissipation, reducing repair time;

● Optional AC 220V, DC -48V, DC +24V, DC power supply has no positive and negative polarity, supports internal isolation, redundant dual power input

● Fiber Port        

Optical port: 1-8
Optical fiber: single-fiber dual-fiber
Optical fiber port: SC/FC/ST/LC(SFP) Optional
Wavelength: 850nm/1310nm multi-mode; 1310nm/1550nm single mode
No trunk transmission distance: 0~80Km
Typical transmission power: single mode 100uw – 0.93mw

● Dry Contact Interface         

Output interface type:

Dry contact

1: Signal relay dry contact output; 2: Optical MOS relay output (maximum internal resistance 25Ω)

Pulse quantity:

Optical MOS relay output, 0-VCC (VCC is the power supply voltage of this machine)

Response time Signal relay dry contact output: <1.2ms, optical MOS relay output <0.6ms

Switch signal Signal relay dry contact output 30VDC/0.5A; optical MOS relay output: 245VDC/0.12A

Maximum switching frequency 50HZ

Output surge protection: Signal relay dry contact output: None; optical MOS relay output: TVS+solid discharge tube protection

● Environmental Indicators 

Operating temperature: -40 ℃ – +85 ℃

Storage temperature: -40 ℃ – +85 ℃

Humidity: 0% -95% (non-condensing)

MTBF: > 100,000 hours

Applicaiton 1:

8 node machines, one aggregation host outputs 16*dry contact, and every 2 channels correspond to 8 optical directions of the node machine

Applicaiton 2:

8 node machines, one aggregation host outputs Modbus RTU or Modbus TCP, and the node optical terminal can output 1-16*dry contact