Station optical modem FM-STM1-02
Descriptions
Scopes
Technical parameters
Сircuitrys
Descriptions
FM-STM1-01 is designed for ring and line STM-1 SDH transport networking.
Selecting the suitable SFP module (optical transceiver) provides the flexible modem tuning for different optical cables and their length.
Operating within STREAM-2, switching (drop-and-insert) of two E1 streams into the STM-1 stream is provided.
Scopes
- Organizing high-speed trunk communication channels;
- Operation in one cable with analog equipment;
- Integrated regenerator monitoring channel;
- PC control and diagnostics;
- Easy maintenance;
- Integrated input circuit protection.
Technical parameters
| Е1 interface | |
|---|---|
| Number of interfaces | 64, connector Molex 74337-0011 |
| Standard | As per ITU-T G.703, G.704 |
| Line code | HDB3 |
| Wave impedance | 120 Ohm |
| Optical interface | |
|---|---|
| Line rate | 155 Mbps |
| Number of ports | 2 optical SFP interfaces |
| Compliance | G.707 |
| Protection | 1+0, 1+1 |
| Ethernet Interface | |
|---|---|
| Number of interfaces | 2 |
| Interface type | 10/100BaseT 802.3 and 802.3U-compliant |
| Connector | RJ-45 |
| Dimensions (HxWxD), mm | 262×35×295 mm |
Сircuitrys
Using FM-STM1-01 within “STREAM-2”
Using FM-STM1-01 within a linear SDH structure without stream protection
Using FM-STM1-01 within a ring SDH structure with 1+1 stream protection
