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| Parameter Category | Specification |
|---|---|
| Model Number | GLC-EX-SMD |
| Product Type | 1000BASE-EX SFP transceiver for extended-reach Gigabit Ethernet links |
| Form Factor | SFP |
| Data Rate | 1G Ethernet |
| Wavelength | 1310 nm |
| Fiber / Media | Single-mode fiber (SMF) |
| Reach / Length | 40 km |
| Connector | Duplex LC/PC |
| Bail Latch Color | Green |
| Power Consumption | 1 W |
| Operating Temperature | Commercial, 0 to 70 °C |
| Digital Optical Monitoring | Supported (DOM / DDM) |
| Compatibility | Cisco switches, routers and firewalls with 1G SFP ports |
| Condition | New Factory Sealed |
| Warranty | 5 years |
| Parameter | GLC-EX-SMD | GLC-SX-MMD | GLC-LH-SMD | GLC-ZX-SMD |
|---|---|---|---|---|
| Form Factor | SFP | SFP | SFP | SFP |
| Data Rate | 1G | 1G | 1G | 1G |
| Wavelength | 1310 nm | 850 nm | 1310 nm | 1550 nm |
| Reach / Length | 40 km | 550 m on OM2 / 1 km on OM4 | 10 km on SMF / 550 m on MMF | 70 km |
| Connector | Duplex LC/PC | Duplex LC/PC | Duplex LC/PC | Duplex LC/PC |
| Typical Use | Long haul | Long haul | Long haul | Long haul |
The Cisco GLC-EX-SMD supports 40 km over Single-mode fiber (SMF), using Duplex LC/PC connectors. Confirm the fiber grade and the optical budget of the link before ordering.
The Cisco GLC-EX-SMD uses Duplex LC/PC. Standard duplex LC/PC patch cords are used for transmit and receive.
The GLC-EX-SMD reaches 40 km over Single-mode fiber (SMF), while the GLC-SX-MMD reaches 550 m on OM2 / 1 km on OM4 over Multimode fiber (MMF). Pick the shortest reach that covers the link distance — going longer than needed costs more and adds optical budget margin you will not use.