I. Service access capability (TDM mode)
In TDM mode, OptiX 155/622H supports access to multiple service types and can interface with switches, wireless base stations, Ethernet switches and other devices.
In TDM mode, OptiX 155/622H supports service types and access quantities as shown in Table 1.
| Service Classification | Maximum number of accesses for a single device |
|---|---|
| SDH | 16×STM-1(o), 6×STM-1(e), 8×STM-4(o), 2×STM-16(o) |
| PDH | 112×E1, 72×E1, 9×E3/T3 |
| Ethernet | 24×FE(e), 8×FE(o), 3×GE(o) |
| DDN service | 12×N×64kbit/s (N≤31), 48×Framed E1, N×2.4kbit/s (N≤18) |
| SHDSL | 12×SHDSL (E1, N×64kbit/s) |
| ATM | 4×STM-1 ATM |
| Audio and Data | 12-channel audio + 4-channel RS-232 + 4-channel RS-422 |
II. Service Access Capability (Packet Mode)
In packet mode, OptiX 155/622H supports FE, GE type of Ethernet service and CES service access access, which can be interfaced with devices with packet characteristics.
In packet mode, OptiX 155/622H supports access to services of FE and GE rate types. The access services can be configured in different forms, including E-Line services, E-Aggr services and CES services.
The service access capabilities supported by the OptiX 155/622H are shown in Table 1.
| Service Classification | Maximum access capacity of a single device |
|---|---|
| FE |
2×FE(o) + 4×FE(e) |
| GE | 4×GE (o) |
The support capabilities of the service forms supported by the OptiX 155/622H are shown in Table 2.
| Service Format | Number of support |
|---|---|
| E-Line | 1024 |
| E-Aggr | 4 |
| E1 CES | 16 |


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