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Description
CISCO GLC-LH-SMD SFP Module is one of the most popular optical modules at the present times.
| Modules | Interface | Wavelength | Tx power | Receiver Sensitivity | DOM Support | Temperature Range |
| Cisco GLC-LH-SM | LC duplex | 1310nm | -9.5 ~ -3dBm | < -23dBm | No | 32℉to 158℉ (0℃to 70℃) |
This model is an MSA protocol compliant connectivity solution that connects a Gigabit Ethernet port or slot to an optical fiber network. It is also known as 1000BASE-LX / LH SFP transceiver.
CISCO GLC-LH-SMD SFP Module Product Picture
CISCO GLC-LH-SMD SFP Module Specification
| Optical module model | GLC-LH-SMD | Package type | SFP |
| Center wavelength | 1310nm | Rate | 1000Mbps |
| Interface | Duplex LC | The maximum transmission distance | 10km |
| Laser type | FP 1310nm | Fiber type | MMF/SMF |
| DOM function | Support | Transmit optical power | -9～-3dBm |
| Receiving sensitivity | <-21dBm | Commercial temperature | 0～70℃ |
CISCO GLC-LH-SMD SFP Module and Related Models
| Optical module model | GLC-LH-SMD | GLC-SX-MMD | GLC-ZX-SM |
| Optical module name | Cisco GLC-LH-SMD SFP Gigabit optical module | Cisco GLC-SX-MMD SFP Gigabit optical module | Cisco GLC-ZX-SM SFP Gigabit optical module |
| Package Type | SFP | SFP | SFP |
| Rate | 1000Mbps | 1000Mbps | 1000Mbps |
| Center wavelength | 1310nm | 850nm | 1550nm |
| Interface | Duplex LC | Duplex LC | Duplex LC |
| Fiber Type | MMF/SMF | MMF | SMF |
| Transmission distance | 10km | 550m | 70km |
| Transmit optical power | -9～-3dBm | -9.5～-3dBm | 0～5dBm |
| Receiving sensitivity | <-21dBm | <-17dBm | <-24dBm |
| DOM Function | Support | Support | Support |
| Laser type | FP 1310nm | VCSEL 850nm | DFB 1550nm |
| Commercial temperature | 0～70°C | 0～70°C | 0～70°C |
| Application of optical modules | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| 1000BASE-LX | Fiber Channel | Fiber Channel | |
| 1000BASE-LH | 1000BASE-SX | 1000BASE-ZX | |
| Compatible switches | Cisco ME 3600 | Cisco Catalyst 3560 | Cisco Catalyst 2960 |
| Cisco ME 3800 | Cisco Catalyst 3750 | Cisco Catalyst 3560 | |
| Cisco ME 3900 | Cisco Catalyst Express 500 | Cisco Catalyst Compact 2960 |
GLC-LH-SMD、GLC-SX-MMD、GLC-ZX-SM Comparison
These three optical modules are not absolutely good or bad, you need to choose the right optical module according to your network application. From a functional point of view. See, Cisco GLC-LH-SMD, GLC-SX-MMD optical modules have more DOM functions than GLC-ZX-SM optical modules, if you need to have DOM function For optical modules, it is not recommended to choose the GLC-ZX-SM optical module. If you need a long-distance optical module, it is recommended that you choose a GLC-ZX-SM optical module with a transmission distance of 70km; if it is a short-distance transmission, you can
Select the GLC-SX-MMD optical module with a transmission distance of 550m; if you need 10km data transmission, it is recommended that you select the GLC-LH-SMD optical module.
CISCO GLC-LH-SMD SFP Module Features
1st, Hot swappable to maximize uptime and simplify serviceability
2nd, Flexibility of media and interface choice on a port-by-port basis, so you can “pay as you populate”
3rd, Robust design for enhanced reliability
4th, Supports digital optical monitoring (DOM) capability
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