| Subject | English | Japanese |
| comp., MS | leased SDLC line | 専用 SDLC 回線 (A dedicated telecommunications line using Synchronous Data Link Control (SDLC)) |
| comp., MS | switched SDLC line | 交換 SDLC 回線 (A standard telephone line used for SDLC connections on an SNA network. The line is dialed in one of three ways: manually, by a modem that stores the phone number, or by a modem that accepts a phone number string from the software) |