The Edwards 4-NET-SM is a single-mode fiber-optic SFP network controller for EST4 panels and remote annunciators. Specifically, it carries network data on a 9/125 µm single-mode fiber pair between EST4 nodes.
First, the 4-NET-SM plugs into a 4-NET SFP slot on the 4-ANNCPU annunciator processor or an EST4 control panel. Then it forms one end of a paired link. In addition, every 4-NET-SM in a project must be matched with a second 4-NET-SM on the other end of the same fiber pair.
Verified Specifications
- Network media: single-mode 9/125 µm (G.652) fiber-optic
- Topology: standard fiber pair (one strand TX, one strand RX)
- Maximum distance between nodes: 6.2 mi (10 km)
- Form factor: SFP module for the 4-NET SFP slot on the 4-ANNCPU or EST4 panel
- Operating temperature: 32 to 120 °F (0 to 49 °C)
- Operating humidity: 0 to 93% non-condensing
Choosing the Right 4-NET Series SFP
Furthermore, the 4-NET family covers different fiber and copper options. For example, use 4-NET-SMD/4-NET-SMU for bi-directional single-fiber links. Alternatively, use 4-NET-SMH for single-mode runs up to 40 km. For multi-mode fiber, use 4-NET-MM. As a result, you can match the SFP to the existing cable plant rather than re-pulling fiber.
For Cat 5e copper up to 100 m, use 4-NET-CAT. However, for the standard single-mode pair on most campuses, the 4-NET-SM is the default choice.
Listings
The 4-NET-SM is covered under the EST4 system listing. Specifically, it carries UL 864, ULC, FM, and CSFM approvals at the system level when installed in a listed EST4 panel or annunciator.
Order or Get Application Help
To order the Edwards 4-NET-SM, call 1-888-557-0558. Also, you can email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 6.5 × 8 × 1.5 in |
| Condition | New |
| Manufacturers | Edwards |
| Part Type | Replacement Part |







