Synchronous Data Link Control
[ca] Synchronous Data Link Control
[cs] Synchronous Data Link Control
[de] Synchronous Data Link Control
[es] Synchronous Data Link Control
[fr] Synchronous Data Link Control
[ja] Synchronous Data Link Control
[pl] Synchronous Data Link Control
[pt] Synchronous Data Link Control
[sl] Synchronous Data Link Control
[uk] Synchronous Data Link Control