3-6. The order of Tie Line link usage.
The Tieline Link Number which is used in calls between exchanges is not
directly indicated, but you can possibly get it from the link number
which is indicated on the
When one | Tieline | Link | brings up some | problems which | cause | the | system not | ||||||||||||
to | work | properly, | try | to | find | which | link | number | is | causing | the | problems | |||||||
from the indication on the |
|
|
| ||||||||||||||||
As | diagram Nol | and | No2 | shows, | in | the exchanges | which | make | calls, the | DLU | |||||||||
Link Number corresponds with TI Tieline Link Number. |
|
|
|
|
|
|
|
| |||||||||||
In | the exchange | which | is | called,the | Tieline | Link | Number | of | the | TI | Unit | is fixed | |||||||
by | connection between | exchanges. |
|
|
|
|
|
|
|
|
|
|
|
|
DLU Links are used in numerical order.
1. Tieline for 2 exchanges
Exchange which calls | Exchange which is called |
| No.470 |
Station Which calls | Station which is called |
Connection Cable | |
| between exchanges |
| Diagram 1 |
2. Tieline for 3 exchanges | Exchange which is called |
Exchange which calls
No.470
Station which calls
Diagram 2
– 18 –