| In force components | 
| Number 
 | Title | Status | 
| V.11 (10/96) 
 | Electrical characteristics for balanced double-current interchange circuits operating at data signalling rates up to 10 Mbit/s This Recommendation is also included but not published in X series under alias number X.27
 | In force 
 | 
| 
 | 
| Superseded and Withdrawn components | 
| Number 
 | Title | Status | 
| V.11/X.27 (11/88) 
 | Electrical characteristics for balanced double-current interchange circuits for general use with integrated circuit equipment in the field of data communications This Recommendation is also included but not published in X series under alias number X.27
 | Superseded 
 | 
| V.11/X.27 (03/93) 
 | Electrical characteristics for balanced double-current interchange circuits operating at data signalling rates up to 10 Mbit/s This Recommendation is also included but not published in X series under alias number X.27
 | Superseded 
 |