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Description
Cisco GLC-ZX-SM SFP Module is 1000BASE-ZX SFP. This is a Duplex SFP transceiver for optical communications, rated for distances up to 70 km and a maximum bandwidth of 1Gbps. The GLC-ZX-SM transceiver operates at 1550nm wavelength. The 1000BASE-ZX SFP operates on standard single-mode fiber-optic link spans of up to approximately 70 km in length. The SFP provides an optical link budget of 23 dB, but the precise link span length depends on multiple factors such as fiber quality, number of splices, and connectors.
Cisco GLC-ZX-SM SFP Module Product Overview
It operates on standard single-mode fiber-optic link spans of up to approximately 70 km in length. The SFP provides an optical link budget of 21 dB, but the precise link span length depends on multiple factors such as fiber quality, number of splices, and connectors. When shorter distances of single-mode fiber (SMF) are used, it might be necessary to insert an inline optical attenuator in the link to avoid overloading the receiver. A 10-dB inline optical attenuator should be inserted between the fiber-optic cable plant and the receiving port on the SFP at each end of the link whenever the fiber-optic cable span loss is less than 8 dB.
Cisco GLC-ZX-SM SFP Module Product Picture
Cisco GLC-ZX-SM SFP Module Specifications
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 |
From GLC-LH-SMD, GLC-SX-MMD, and GLC-ZX-SM optical modules. We can
See the package type, speed, interface, and commercial temperature of the three optical modules are the same, but the other aspects are different. For example, we can see from the model. In addition to the “D” in the model of the GLC-ZX-SM optical module, the other two optical modules are available, and the “D” at the end of the model represents DOM work. This means that the GLC-ZX-SM optical module does not support DOM functionality, while the other two optical modules support it.
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-ZX-SM SFP Module Features
Cisco 1000BASE-ZX Ethernet SFP
Up-to 70 km over SMF @ 1Gbps
1550nm Duplex SFP Transceiver
0°C – 70°C Operating Case Temperature
No Digital optical monitoring capability
Hot-swappable for SFP LC ports
Cisco 90 day standard warranty
Cisco SFP can be covered by SMARTnet
SFP MSA / IEEE Std 802.3
Cisco GLC-ZX-SM is RoHS compliant
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