• TRM-220-G31
  • TRM-221
  • TRM-220-G31 thum
  • TRM-221 thum

RS-422/RS-232 Optical Converters

Applicable for RS-422 and up to 10Mbps bandwidth.

Key Features and Benefits

  • TIA-422, SMPTE ST 207, RS-232
  • Usable in a case of RS-422 < = > RS-232
  • Extends communications up to 30 km (condition: line loss 0.5 dB/km)
  • Bi-directional optical communication
Platform is required for power supply
  • Tech Data
  • Downloads

RS-422/RS-232 Optical Converters

Model Wavelength Occupancy Remark
TRM-220 1310nm 2 slots Work with TRM-221.
TRM-221 1550nm Work with TRM-220.
TRM-220A-47 1471nm for CWDM Work with TRM-220A-** of a different wavelength (*1).
TRM-220A-49 1491nm for CWDM
TRM-220A-51 1511nm for CWDM
TRM-220A-53 1531nm for CWDM
TRM-220A-55 1551nm for CWDM
TRM-220A-57 1571nm for CWDM
TRM-220A-59 1591nm for CWDM
TRM-220A-61 1611nm for CWDM
  • (*1) TRM-220A-** does not work with TRM-220-G31 or TRM-220-G55.
  • RS-422/RS-232 Optical Converters wiring

    Block Diagram of TRM-220 and TRM-221


Model TRM-220, TRM-221 TRM-220A-**
Fiber Type Single Mode
Optic I/O Connector 1 x SC 2 x LC
Serial I/O Port 1 x Dsub 9 pin (F)
Max. Data Rate RS-422: 10 Mbps, RS-232: 1 Mbps
Dimensions 54 x 43.4 x 76.2 mm
Weight (approx.) 110 g 120 g
Standards TIA-422, SMPTE ST 207, RS-232C




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