GLC-LH-SM Cisco Compatible 1000BASE-LX/LH SFP Transceiver, 10km SMF
Cisco compatible GLC-LH-SM - Key Features
- Compatibility: Cisco
- Media Type: Single-Mode Fiber (SMF)
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 10 km
- Average Link Budget: 13 dB
- Tx Wavelength: 1310 nm
- Supported Data Rate: 1.063 Gbps - 1.25 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
Cisco GLC-LH-SM Price
In Stock - Ships Next Business DayCisco compatible GLC-LH-SM Specifications
Form Factor | SFP |
Media Type | Single-Mode Fiber (SMF) |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 10 km |
Average Link Budget | 13 dB |
TX Wavelength | 1310 nm |
RX Wavelength | 1310 nm |
Supported Data Rate | 1.063 Gbps - 1.25 Gbps |
Supported Ethernet Applications | Gigabit Ethernet (1.25 Gbps) |
Supported Fiber Channel Applications | 1G Fiber Channel (1.0625 Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | 100 nm (1260-1360 nm) |
Rx Wavelength Bandwidth | 100 nm (1260-1360 nm) |
Minimum Transmitting Power | -9 dBm |
Maximum Transmitting Power | 3 dBm |
Receiver Sensitivity | -22 dBm |
Receiver Overload | -3 dBm |
Dispersion | 70-100 ps/nm ps/nm |
Transmitter Type | FP Laser |
Receiver Type | PIN photodiode |
Temperature Range | Standard 0°-70°C |
Power | +3.3V single power supply |
Compliance | CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, INF-8074i, RoHS, SFP MSA |
Cisco compatible GLC-LH-SM Datasheet
v2Complete technical specifications and product details
Cisco compatible GLC-LH-SM Description
EdgeOptic's GLC-LH-SM compatible is a Cisco-coded version of the EdgeOptic 1.25G-SFP-10D multi-vendor 1000BASE-LX/LH SFP transceiver. It carries a duplex LC/UPC connector pair and drives Gigabit Ethernet at 1.25 Gbps over single-mode fiber at 1310 nm, reaching 10 km with a 13 dB link budget. The supported data rate range spans 1.063 to 1.25 Gbps, which also covers 1G Fiber Channel at 1.0625 Gbps on the same optical path.
Transmit power ranges from minus 9 dBm to plus 3 dBm from an FP laser, and receive sensitivity is minus 22 dBm with a minus 3 dBm overload threshold. Wavelength tolerance spans a 100 nm window centered on 1310 nm (1260 to 1360 nm) at both the transmit and receive side, with chromatic dispersion tolerance of 70 to 100 ps/nm. A PIN photodiode receiver and integrated DDM/DOM support give real time monitoring per the SFF-8472 diagnostic interface, covering transmit power, receive power, temperature, and bias current. The module runs on 3.3V power across the standard 0 to 70 degrees Celsius operating range.
EdgeOptic programs the GLC-LH-SM compatible with Cisco-compatible identification data so it presents as the intended optic on Cisco switches and routers. Verify recognition behavior for the target platform and software release against Cisco's own optics compatibility documentation before ordering, since supported port types and line card support vary by chassis.
The module meets CE, Class 1 laser safety under FDA and IEC 60825-1, INF-8074i, RoHS, and SFP MSA requirements. Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms, the GLC-LH-SM compatible ships with a lifetime warranty. For volume pricing or an alternative vendor coding, contact our sales team.
Frequently Asked Questions
Is the Cisco GLC-LH-SM still an active ordering code?
Cisco's End-of-Sale and End-of-Life bulletin for select Gigabit Ethernet SFP modules lists GLC-LH-SM with a last day to order of March 8, 2013. EdgeOptic's GLC-LH-SM compatible remains available as a drop-in replacement for existing deployments and new builds that still standardize on this part number, backed by a lifetime warranty.
Does the GLC-LH-SM compatible cover 20 km links, like the GLC-LH-SM-20?
No. GLC-LH-SM-20 is a separate Cisco ordering code for a longer-reach 20 km part and is not sold under this page. EdgeOptic's GLC-LH-SM compatible is built to the 1.25G-SFP-10D root hardware, rated for a 10 km maximum distance over single-mode fiber with a 13 dB link budget. Confirm the reach class printed on the existing module or line card before ordering a replacement.