Import 4/8/16/24 E1 Add/Drop Modular Stm1 Multi Service — Buy in Bulk from Supplier in China
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4/8/16/24 E1 add/drop modular STM1 multi service
The GT-SDH-155B is a compact multi-service SDH platform that supports 4, 8, 16, or 24 E1 add/drop interfaces alongside STM-1 optical line interfaces, enabling flexible network topologies such as point-to-point, chain, and ring structures. It complies with ITU-T and domestic SDH standards, offering VC-12 level switching, path protection, and NE timing per G.813. The device features two STM-1 optical interfaces with optional 1+1 protection, making it suitable for high-availability networks.
Ethernet interfaces support 10/100/1000M auto-negotiation with full/half duplex and MDI/MDIX auto-sensing, while E1 interfaces use HDB3 coding at 2.048Mbps ±50ppm with BNC (75Ω) or RJ11 (120Ω) connectors. V.35 interfaces are configurable for N*64Kbps (N=1 to 32) and comply with ITU-T V.35 and ISO2593 standards. The optical interfaces operate at 1310nm or 1550nm with NRZ coding, max TX power of -8/0dBm, and RX sensitivity of -28/-34dBm at BER 10^-10.
This product targets telecom carriers and large enterprises deploying SDH networks with mixed E1, Ethernet, and V.35 services. Buyers should verify the number of supported E1 and FE interfaces, as configurations range from 4 to 24 E1 and 2 to 8 FE ports. The 1U rack-mounted design minimizes space consumption, and dual power supplies (AC 220V or DC -48V) ensure redundancy. Network management is supported via NMS, CLI, and DCC over VC-12.
| E1 Interfaces | 4, 8, 16, or 24 (add/drop) |
| STM-1 Optical Interfaces | 2 (optional 1+1 protection) |
| Ethernet Interfaces | 2 to 8 x 10/100/1000M FE (or 2 x Gigabit Ethernet) |
| V.35 Interfaces | 1 to 2 (configurable N*64K, N=1~32) |
| Optical Wavelength | 1310nm or 1550nm |
| Optical Coding | NRZ |
| Max TX Power (Optical) | -8dBm or 0dBm |
| Min TX Power (Optical) | -15dBm or -5dBm |
| RX Sensitivity (Optical) | -28dBm or -34dBm (BER 10^-10) |
| E1 Bit Rate | 2.048Mbps ±50ppm |
| E1 Connector | BNC (75Ω) or RJ11 (120Ω) |
| V.35 Bit Rate | N*64Kbps (N=1 to 32) |
| Operating Temperature | -5°C to 50°C |
| Power Supply | AC 220V or DC -48V (dual supply) |
| Physical Dimensions | 483mm (W) x 45mm (H) x 154mm (D) |
| Typical SDH Standard | ITU-T G.703, G.813 (standard for SDH networks) |
Guangdong Global Telecommunication Technology Co., Ltd. operates from its facility in Guangzhou’s Pacific Industrial Zone, Zengcheng Area, focusing on SDH and PDH solutions for modern telecom networks. The company’s GT-SDH-155B series exemplifies its commitment to modular, standards-compliant equipment that addresses diverse service requirements.
Classified as an imported tier supplier with a harbor trust tier, the company’s current profile shows no recorded response rate or average response time. Its product line includes multi-service SDH platforms like the GT-SDH-155B, which are designed for carriers and enterprises needing scalable, high-reliability network infrastructure.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Sourcing 4/8/16/24 E1 add/drop modular STM1 multi service from Guangdong Global Telecommunication Technology Co., Ltd. - China Import Guide
Prior to ordering, confirm the exact number of E1, Ethernet, and V.35 interfaces required, as the GT-SDH-155B offers modular configurations. Verify compatibility with your SDH network, particularly the optical wavelength (1310nm or 1550nm) and E1 connector type (BNC or RJ11). Ensure the device’s VC-12 switching and path protection features align with your network’s redundancy requirements.
For logistics, clarify the lead time for custom configurations and the supplier’s ability to provide export documentation, including compliance certificates for ITU-T standards. Confirm Incoterms (e.g., FOB Guangzhou) and payment terms, as these details are not specified in the listing. Request information on packaging and shipping methods to prevent damage during transit.
Quality validation should include testing STM-1 optical interfaces for TX power and RX sensitivity to ensure they meet the specified thresholds. Verify E1 and Ethernet throughput under full load, and check V.35 interface performance for N*64Kbps configurations. Request a factory acceptance test report to confirm compliance with ITU-T G.813 timing and G.703 standards, as well as the device’s ability to operate in the stated environmental conditions.
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30 suppliersBuy & Import 4/8/16/24 E1 Add/Drop Mod — Wholesale Supply from China
Securing a reliable supply chain for 4/8/16/24 E1 Add/Drop Modular Stm1 Multi Service is critical for maintaining your business operations. Guangdong Global Telecommunication Technology Co., Ltd., a verified supplier located in China, provides high-quality 4/8/16/24 E1 Add/Drop Mod ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Telecommunication Infrastructure/Equipments industry, catering to distributors, wholesalers, and importers worldwide.
Request Wholesale Pricing & Bulk Trade Terms
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing 4/8/16/24 E1 Add/Drop Mod from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Guangdong Global Telecommunication Technology Co., Ltd.. This seamless communication is powered by EximNext, a premier global B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.
About Guangdong Global Telecommunication Technology Co., Ltd. — Verified Supplier in China
We understand that verifying supplier credentials is a top priority for importers. Guangdong Global Telecommunication Technology Co., Ltd. is part of our extensive network of vetted international exporters. Browse more products in the Telecommunication Infrastructure/Equipments category or discover new suppliers across the Telecommunication Infrastructure/Equipments sector. Expand your sourcing capabilities through our trusted import export marketplace — the import export marketplace built for serious international trade.
International Shipping & Import Guidelines for 4/8/16/24 E1 Add/Drop Mod
When importing 4/8/16/24 E1 Add/Drop Mod from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Frequently Asked Questions About 4/8/16/24 E1 Add/Drop Mod
How can I get the wholesale price for 4/8/16/24 E1 Add/Drop Modular Stm1 Multi Service?
Click the "Request Quotation" button to contact Guangdong Global Telecommunication Technology Co., Ltd. directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Can I buy 4/8/16/24 E1 Add/Drop Mod in bulk from China?
Yes, Guangdong Global Telecommunication Technology Co., Ltd. provides 4/8/16/24 E1 Add/Drop Mod for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
What shipping terms are available for this product?
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Guangdong Global Telecommunication Technology Co., Ltd.. Contact the supplier to discuss the best logistics options for importing 4/8/16/24 E1 Add/Drop Mod to your country.
How do I request a sample of 4/8/16/24 E1 Add/Drop Modular Stm1 Multi Service?
Send a direct message to Guangdong Global Telecommunication Technology Co., Ltd. through our platform to request a product sample before committing to a large wholesale order.
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Guangdong Global Telecommunication Technology Co., Ltd. is a registered and verified supplier on EximNext. We recommend using our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
What specifications should I ask for when importing 4/8/16/24 E1 Add/Drop Mod?
Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Guangdong Global Telecommunication Technology Co., Ltd..
Does Guangdong Global Telecommunication Technology Co., Ltd. offer custom packaging or private labeling?
Many suppliers on EximNext, including Guangdong Global Telecommunication Technology Co., Ltd., offer custom packaging and private label options for bulk wholesale orders.
What payment methods are accepted for international orders?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services.
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Yes, EximNext hosts a wide network of verified Telecommunication Infrastructure/Equipments manufacturers, exporters, and wholesalers across 200+ countries.
How do I contact Guangdong Global Telecommunication Technology Co., Ltd. for a bulk trade inquiry?
Click "Request Quotation" or "Contact Supplier" on this page. Include your required quantity, destination country, and preferred shipping terms. All communications are managed securely through our global B2B marketplace.
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