“Other” On-Network
2 January
Local Switch
| Data |
| |
| TN726B |
| |
OR | M.P | C O | |
TN | |||
| TRK | ||
|
|
Remote Switch
(Note1) |
S75R1V3\ |
netcon |
1996
Ser 
PA
7400B
Modem
| DIG. | 758 |
| TN754B | TN747B |
OR |
|
|
OR | Analog |
|
TN746B |
| |
|
| IFB |
C.O. 
DID
TN753
|
|
|
|
|
|
|
|
|
| G1/G3I/G3S | |
| M.P | OR |
|
|
|
| |||||
|
|
|
|
|
|
| |||||
| Data |
|
| ||||||||
| TN |
|
|
|
| TN726 |
|
|
|
|
|
758 |
|
|
|
|
|
|
|
| G3R | ||
|
|
|
| PK.Data | |||||||
|
|
|
|
|
| ||||||
|
|
|
|
|
| TN553 |
|
|
|
|
|
