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Serial Optical Fiber Modem

31 Channel RS232/422/485 Fiber Modem

Overview
31RS232/485/422 Fiber Modem provides 31Channel RS232/485/422 transmission on fiber. The product breaks through contradictions between traditional serial interface communication distance and communication rate besides it also can solve electromagnetic interference ground ring interference and lightning damage. The device greatly improves reliability security and confidentiality of data communication. It is widely used for various industrial control process control and traffic control occasions especially for Bank and Power and other sectors and systems which have special requirements of electromagnetic interference environment. RS232/RS485/RS422 channel can transmit adaptable serial data asynchronously 0Kbps-19.2Kbps baud rate.
Features
◆ based on self -copyright IC; 
◆ Support 3 line RS232 (TXDRXDGND) support for flow control CDDSRCTS;
◆ Have three Loop Back Mode: E1 interface Loop Back (ANA)、RS232/485/422 interface Loop Back(DIG)、Command the remote RS232/485/422 interface Loop Back(REM);
◆ RS232/RS485/RS422 supports hot-plug supports DTE or DCE device interconnection; 
◆ RS232/RS485/RS422 channel can transmit adaptable serial data asynchronously 0Kbps-57600Kbps baud  rate;
◆ Have pseudo random code test function easily line opened can be used as a 2M BER Tester;
◆ Serial port interface lightning-protection reached IEC61000-4-5 (8/20μS) DM(Differential Mode): 6KV  Impedance (2 Ohm) CM(Common Mode): 6KV Impedance (2 Ohm) standard;
◆ AC 220V DC-48V DC+24V DC Power and Polarity-Free.
Parameters
Fiber
Multi-mode Fiber
50/125um 62.5/125um
Maximum transmission distance: 5Km @ 62.5 / 125um single mode fiber attenuation (3dbm/km)Wave Length: 820nm
Transmitting power: -12dBm (Min) ~-9dBm (Max)
Receiver sensitivity: -28dBm (Min)
link budget: 16dBm
Single-mode Fiber
8/125um 9/125um
Maximum transmission distance: 40Km
Transmission distance: 40Km @ 9 / 125um single mode fiber attenuation (0.35dbm/km)
Wave Length: 1310nm
Transmitting power: -9dBm (Min) ~-8dBm (Max)
Receiver sensitivity: -27dBm (Min)
link budget: 18dBm
Serial interface 
Standard
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)
Serial Interface
RS-422: TXD+ TXD- RXD+ RXD- Signal Ground
RS-485 4 wires: TXD+ TXD- RXD+ RXD- Signal Ground
RS-485 2 wires: Data+(Correspond TX+) Data-(Correspond TX-) Signal Ground
RS-232: RXD TXD Signal Ground
Power
Power supply: AC180V ~ 260V;DC –48V;DC +24V
Power consumption: ≤10W
Dimension          
Product Size: 485X140X45mm(WXDXH)                
Simple packaging: 522X193X84mm(WXDXH)
Piece Weight : 2 .2KG
Working environment
Working temperature: -10°C ~ 50°C
Working Humidity: 5%~95 % (no condensation)
Storage temperature: -40°C ~ 80°C
Storage Humidity: 5%~95 % (no condensation)
Application
31 Channel RS232/422/485 Fiber Modem
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