The Edwards 4-NET-SMD is a bi-directional single-mode fiber-optic SFP network controller for EST4 panels and remote annunciators. Specifically, it carries network data and audio data on a single fiber strand instead of the usual fiber pair.
First, the 4-NET-SMD plugs into an SFP slot on the 4-ANNCPU central processor or an EST4 control panel. In addition, it is one half of a paired link. As a result, every 4-NET-SMD on a project must be matched with a 4-NET-SMU on the far end. Bi-directional traffic shares the one 9/125 µm single-mode fiber between the two cards.
Furthermore, the link supports runs up to 6.2 miles (10 km) between nodes. Therefore, the SMU/SMD pair is well suited to campus and multi-building deployments that need a long single-fiber backbone.
Key Features
- Bi-directional single-mode fiber-optic SFP for EST4
- Carries network data and audio on a single fiber strand
- Must be paired with a 4-NET-SMU at the other end of the link
- Up to 6.2 miles (10 km) between network nodes on G.652 single-mode fiber
- Mounts in any 4-NET SFP slot on the 4-ANNCPU or an EST4 control panel
- Listed as part of the EST4 system’s UL, ULC, FM, and CSFM approvals
Verified Specifications
- Network media: single-mode 9/125 µm (G.652) fiber-optic
- Topology: bi-directional, one fiber strand per link
- Required link partner: one 4-NET-SMU at the opposite end
- Max distance between nodes: 6.2 mi (10 km)
- Form factor: SFP module for the 4-ANNCPU SFP slot
- Operating temperature: 32 to 120 °F (0 to 49 °C)
- Operating humidity: 0 to 93% non-condensing
Choosing the Right 4-NET Series SFP
For non-bi-directional links over a fiber pair, use 4-NET-SM (10 km) or 4-NET-SMH (40 km). For multi-mode fiber, use 4-NET-MM. For Cat 5e copper up to 100 m, use 4-NET-CAT. For twisted pair, use 4-NET-TP or 4-NET-TPHC.
Order or Get Application Help
To order the Edwards 4-NET-SMD, call 1-888-557-0558. You can also 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 | 0.3 lbs |
|---|---|
| Dimensions | 6.5 × 8.5 × 1.5 in |
| Condition | New |
| Manufacturers | Edwards |
| Part Type | Module |







