1Ch RS232/422/485 fiber modem

Lightem LFM232 series is of multi-performance sustaining such telecom interface as RS-232, RS-422, RS-485, the distance can reach to 4KM while is 40KM for single-mode and the speed of single-mode can reach to 460KBPS. It can avoided thunder, interfere in scurvies environment.

 

  • The transmit distance of multi-mode optical fiber can to 2KM while 40KM of the single mode.
  • The transform between serial communication interface RS-232/RS485/RS-422 and optical fiber interface is available.
  • The point-to-point loop connection is available.
  • Separate working of serial communication RS232/RS422/RS485 is available.
  • The communication speed of RS232 interface 300-115200bps, it is 1 mbps of RS422 and RS485.
  • Duplex and semi-duplex RS-485 working way is available.
  • The principal and subordinate working way is available. Subordinate way can be used as a repeater.
  • Stable data transmit and long lifespan.
  • Power: ≤5W, Power supply outside: DC5V/1A.
Parameter
Optical
Connector ST
no. of fiber required Simplex or Duplex
Wavelength MM (850nm), SM (1310nm)
Data
Electrical standard RS232, 422, 485
Bit rate 115200bps/1Mbps
LED indicators Pwr, Tx, Rx
General data
Work Temp. 0~+50℃
Storage Temp -40~+75℃
Humidity (RH) 5-9% non condensing
Dimensions 120x76x22mm
P/N Dexcription
LFM232-MD 2KM RS-232/422/RS485 Multimode Duplex ST Optical Fiber Modem
LFM232-SD 20KM RS-232/422/RS485 Singlemode Duplex ST Optical Fiber Modem
LFM232-LD 40KM RS-232/422/RS485 Singlemode Duplex ST Optical Fiber Modem
LFM232-SS 20km RS-232/422/RS485 Singlemode Simplex FC Optical Fiber Modem
LFM232-LS 40km RS-232/422/RS485 Singlemode Simplex FC Optical Fiber Modem