STM-1
[az] STM-1
[ca] STM-1
[de] Synchrone Digitale Hierarchie#SDH Hierarchiestufen
[es] STM-1
[fr] STM-1
[ja] STM-1
[ml] സിൻക്രണസ് ട്രാൻസ്പോർട്ട് മോഡൃൂൾ-I (STM-I)
[nb] STM-1
[pt] STM-1
[sk] STM-1