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4ch video+4ETH(physically isolated)+serial+dry contact multiplexer

View : 591
Type : Multi-Service Fiber Mux
Description :

This series of products is a point-to-point multi service optical transmission equipment developed on the basis of the special VLSI developed by the company.


This series of products is a point-to-point multi service optical transmission equipment developed on the basis of the special VLSI developed by the company. This product provides 4ch video; 1-16 channels of dry contact interface / 1-8 channels of rs232-422-485 interface; 4ch 100M Ethernet interface, 4ch 100M Ethernet, each Ethernet port has its own independent 100m bandwidth, the total bandwidth of all 4ch  Ethernet is 400m, which is completely independent and physically isolated through one optical fiber; 1 optical interface; The internal circuit of the equipment adopts all digital circuits, which makes the whole machine reliable and stable, low power consumption, high integration, small volume and easy to install and maintain.



aluminum alloy anodized shell with IP40 protection grade;

integrated circuit based on independent intellectual property rights, with a total bandwidth of 1.5g;

the optical port has no relay, and the transmission distance can reach 2 ~ 120km;

the video interface supports PAL / NTSC / SECAM full system compatibility and studio level transmission quality;

four 100M Ethernet interfaces work in 100m full duplex mode, and each Ethernet interface has its own independent 100m bandwidth physical isolation;

100M Ethernet supports the transmission of VLAN ultra long data packets, which can be connected with IEEE802 The switch products of 1q protocol are matched and can support giant frame Ethernet packets with a maximum packet length of 10240;

it can be connected to 1-16 channels of dry contactor 1-8 channels of RS232 / 422 / 485 serial interface;

it can be inserted into the 4U 17 slot centralized rack and support SNMP network management;

the lightning protection of various interfaces shall reach iec61000-4-5 (10 / 700) μ S) Differential mode: 6kV impedance (40 Ω); Common mode: 6kV, impedance (40 Ω) standard.


● fiber

Optical port: 1, 2 (1+1 optical backup)

Optical port rate: 1.25G

Optical fiber: single fiber and double fiber

Fiber Interface: FC/SC/ST/LC (SFP)

Wavelength: 850nm/1310nm multimode; 1310nm/1550nm single mode

No relay transmission distance: 20~120Km

Typical transmit power:

    Single mode 1310/1550nm: ≥-9dBm

    Multimode 850nm: -18dBm

    Multimode 1310nm: -25dBm

Acceptable sensitivity range: -28dBm~- 40dBm

● Video interface

Video bandwidth: 5hz-10mhz

Signal level: 1Vp-p (typical value)

Sampling frequency: 16.4m

Signal impedance: 75 Ω

Physical interface: BNC (pal, NTSC, SECAM compatible)

Differential gain (DG): < 1.3% (typ.)

Differential phase (DP): < 1.3% (typical value)

SNR: > 63dB (weighted)

● 10/100M Ethernet

Protocol: IEEE 802.3 compliant, IEEE 802.1Q (VLAN)

Rate: 10/100M adaptive, full/half duplex fully adaptive

MAC address table: Can learn 4096 MAC addresses

Physical interface: RJ45 seat, support Auto-MDIX

(cross/straight line adaptive)


  • Serial interface


   EIA/TIA-232 RS-232 (ITU-T V.28)

   EIA/TIA-422 RS-422 (ITU-T V.11)

   EIA/TIA-485 RS-485 (ISO/IEC8284)


   RS-422: TxD+ TxD- RxD+ RxD-

   RS-485 4 wires: TxD+ TxD- RxD+ RxD-       

RS-485 2 wires: A(对应TX+) B(对应TX-) Ground

   RS-232: RXD TXD Signal Ground

  • Dry contact                      

Output interface type: signal relay dry contact output

Response time: signal relay dry contact output: < 1.2ms

Switch signal: signal relay dry contact output 36VDC / 0.5A

Maximum switching frequency: 50Hz

● Electrical and mechanical properties      

System power supply: ac180v ~ 260V; DC – 48V; DC + 24V

(dual power redundant backup is supported)

Power consumption: ≤ 10W

Appearance structure: 485 (L) X200 (W) x45 (H) mm 19 inch 1U rack type

Weight: 3.8kg/set

● Working environment                   

Working temperature: -10 ° C – +60 ° C

Storage temperature: -40 ° C – +85 ° C

Working humidity: 0% – 95% (no condensation)

MTBF: >100,000 hour


Product number


Product function description

Transfer 1-4ch video ;1-16ch dry contact/1-8chRS232-422-485 interface;4ch FE  Ethernet interface on fiber(physically isolated)


1-4ch video,1-16ch dry contact/1-8chRS232-422-485 interface;4ch FE Ethernet interface(physically isolated),2 fiber port

Power supply

AC220V / DC-48V / DC+24V(optional)


(L×W×H)  185*140*45mm desktop type





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