Q1: Is HYTOPTODEVICE GLC‑BX‑20D fully compatible with original Cisco switches?
A1: Absolutely yes. All HYTOPTODEVICE GLC‑BX‑20D modules pass strict real‑machine tests on genuine Cisco switches and enterprise network devices. The products match original device firmware and protocols 100%, with no recognition failure, no port error and no packet loss, ensuring stable commercial‑grade network operation.

Q2: Do I need paired reverse wavelength modules for HYTOPTODEVICE GLC‑BX‑20D BiDi SFP?
A2: Yes. This HYTOPTODEVICE GLC‑BX‑20D transceiver adopts 1550nm Tx/1310nm Rx wavelength design, which must be paired with a 1310nm Tx/1550nm Rx reverse BiDi module at the remote end to build a complete bidirectional gigabit single‑fiber link, complying with standard 1000BASE‑BX project deployment specifications.Cisco

Q3: What is the actual stable transmission distance of HYTOPTODEVICE GLC‑BX‑20D over single‑mode fiber?
A3: HYTOPTODEVICE GLC‑BX‑20D BiDi SFP module supports a maximum stable transmission distance of 20km over standard OS2 single‑mode fiber. After professional factory calibration and real machine testing, the signal remains stable without attenuation or disconnection in full‑distance scenarios, meeting long‑distance enterprise networking requirements.

Q4: Does HYTOPTODEVICE GLC‑BX‑20D support DDM/DOM real‑time monitoring function?
A4: Yes. All finished HYTOPTODEVICE GLC‑BX‑20D modules are built with complete DDM/DOM digital diagnosis function. Engineers can remotely monitor module temperature, working voltage, transmit power and receive power through device CLI, facilitating daily network operation, maintenance and rapid fault troubleshooting.

Q5: Can HYTOPTODEVICE provide real‑device test videos for bulk GLC‑BX‑20D orders?
A5: Yes. To eliminate customer compatibility concerns, HYTOPTODEVICE provides exclusive real‑device test videos of GLC‑BX‑20D modules running on Cisco and multi‑brand equipment for all wholesale and bulk project customers, proving product stability and compatibility authenticity.

Q6: Does HYTOPTODEVICE support long‑term wholesale bulk supply of GLC‑BX‑20D SFP modules?
A6: Definitely. HYTOPTODEVICE has sufficient in‑stock inventory and stable production capacity, supporting long‑term stable bulk supply, project batch matching and global wholesale distribution for system integrators, engineering contractors and retail merchants with fast delivery cycles.

Q7: Can HYTOPTODEVICE provide OEM personalized customization for GLC‑BX‑20D transceivers?
A7: Yes. HYTOPTODEVICE provides one‑stop OEM customization services including private logo printing, exclusive label packaging, specification fine‑tuning and batch customization, supporting customers’ private brand sales and personalized project deployment needs.

Q8: What fiber type and connector does HYTOPTODEVICE GLC‑BX‑20D adopt for engineering deployment?
A8: This HYTOPTODEVICE GLC‑BX‑20D BiDi SFP module is equipped with a standard simplex LC connector and is exclusively adapted to universal single‑mode fiber (SMF). The single‑fiber transmission design effectively saves engineering fiber costs and is the most cost‑effective optical module solution for medium and long‑distance network projects.

Q9: Can HYTOPTODEVICE GLC‑BX‑20D work stably on multi‑brand third‑party network devices?
A9: Yes. The product strictly complies with international MSA unified standards. In addition to full compatibility with Cisco series equipment, it can run stably on HPE, Juniper, Brocade, H3C, Huawei and other mainstream MSA‑compliant network devices, with strong universal adaptability for mixed‑brand network projects.

Q10: What are the quality guarantee and after‑sales policies for HYTOPTODEVICE GLC‑BX‑20D bulk orders?
A10: All HYTOPTODEVICE GLC‑BX‑20D modules undergo strict factory testing and quality inspection. Conventional bulk orders can be shipped within 3–5 working days with sufficient stock support. We provide professional global after‑sales technical support and long‑term quality guarantee, ensuring stable cooperation for customers’ continuous engineering and wholesale business.