Edwards 4-NET-SMD is the downlink SFP network controller of a single-mode, single-fiber pair for EST4 networks. It transmits at 1550 nm and receives at 1310 nm, and it works with the 4-NET-SMU at the far end of the fiber. One strand of single-mode fiber replaces the two strands used by dual-fiber controllers such as the 4-NET-SM.
Specifications
| Model |
4-NET-SMD |
| Direction |
Downlink |
| Standard |
100Base-BX10-D |
| Wavelength (Tx/Rx) |
1550 nm / 1310 nm |
| Transmit power |
-14 to -8 dBm |
| Receive power |
-27 to -8 dBm |
| Fiber |
Single-mode G.652, 9 micron, single fiber |
| Connector |
LC simplex |
| Maximum distance |
6.2 miles (10 km) |
| Maximum channel insertion loss |
5 dB |
| Current |
5 mA at 24 VDC (standby and alarm) |
| Data speed |
100 Mbps TX/RX |
| Operating temperature |
32 to 120°F (0 to 49°C) |
| Humidity |
0 to 93% non-condensing |
Features
- Small form-factor pluggable (SFP) module for Edwards EST4 network connections
- Carries network data, voice audio and firefighters' telephone over a single optical fiber
- Used as a pair: one downlink (SMD) at one end, one uplink (SMU) at the other
- Fire-rated or plenum cable per the data sheet cable specification
