OSN3500 SSN1ODL4A TM single board appearance
The IDL4 single board supports ATM switching, IMA, ATM protection, and other functions and features.
The specific functions and features of the IDL4 single board are shown in Table 1.
| Functions and Features | Description |
|---|---|
| Basic Functions | Access and process 1 channel STM-4 ATM service |
| Optical interface type | Support S-4.1, L-4.1, L-4.2 and Ve-4.2 |
| Connector Type | LC |
| Optical Module Type | SFP |
| E3 ATM Interface | Not supported |
| IMA function (ATM Forum IMA 1.1 standard) |
|
| Maximum uplink bandwidth |
8xVC-4 or 63xVC-12 + 7xVC-4 Description:
Only the first VC-4 can be bound to a VC-12 level virtual cascade. |
| ATM switching capacity | 1.2 Gbit/s in one direction, 600 Mbit/s in both directions. |
| Mapping method | VC-12, VC-4 or VC-4-Xc (X=1 to 4) VC-12-Xv (X=1 to 32) |
| Service Type | CBR, rt-VBR, nrt-VBR and UBR |
| ATM Connections | 2048 entries |
| Statistical multiplexing | Support |
| Traffic type and QoS | IETF RFC2514, ATM forum TM4.0 |
| ATM multicast connections | Spatial multicast, logical multicast |
| ATM protection (ITU-T I.630) | Unidirectional/bidirectional 1+1 and 1:1, VP-Ring, VC-Ring |
| Single board level 1+1 protection | Supports |
| OAM function (ITU-T I.610) | AIS, RDI, LB, CC |
| Maintenance Features | Supports inner loopback at optical port level and ATM level, and outer loopback at ATM level for maintenance and fault location. |
| Alarm and Performance | Provides rich alarm and performance events for maintenance and fault location. |
| Description: IMA function, i.e. ATM reverse multiplexing, can encapsulate ATM signaling elements for E1.IMA and individual E1 can exist simultaneously.IMA groups can dynamically increase and decrease bandwidth to improve network bandwidth utilization.It can be used to aggregate 2M services and also used for interfacing with other IMA devices. | |
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