 |
| |||
| subscriber connection line (line used for connecting terminal devices to endpoints or crosspoints or directly to one another) | |||
| reference line | |||
| surveying base line; survey base line | |||
|
| |||
| subscriber connection line (line used for connecting terminal devices to endpoints or crosspoints or directly to one another) | |||
| reference line | |||
| surveying base line; survey base line | |||