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GQ3008E-4FE
4/8-channel telephone + 4 E1 + 4 100 Mbps (shared) optical terminal for telephony
Keywords
Commercial Switches
Domestic Switches
隐藏域元素占位
Category:
Commercial Switches
Domestic Switches
Product Overview
The GQ3008E-4FE telephone optical terminal can transmit 8 voice channels, 4 E1 lines, and 4 100-Mbps Ethernet channels over fiber optic links (shared). This device employs a dedicated digital multiplexing chip that integrates nearly all of its digital logic functions, significantly enhancing performance while reducing costs. The unit delivers excellent overall performance, operates stably and reliably, consumes low power, boasts a high level of integration, and features a compact footprint that simplifies installation and maintenance.
Guangqiao is one of the earliest domestic manufacturers of telephone optical transceivers. Our entire product line is independently developed, manufactured, and sold directly by our company. We possess core technologies, employing PCM pulse-code modulation to deliver crystal-clear voice quality and stable, reliable communication. Each voice channel is equipped with a three-level overcurrent and overvoltage protection circuit, setting our products apart from devices that use video‑based optical transceivers, which often produce muffled audio and unreliable calls. Our solutions are widely deployed across major private networks and public networks, including government agencies, the power sector, public security, the military, civil aviation, maritime services, mining operations, and highway systems.
Product Features
1. Provides 8 telephone channels, 4 E1 interfaces, and 4 100-Mbps network ports (shared), with no compression and excellent voice quality.
2. The optical port supports multimode or single-mode, and can operate over a single fiber or dual fibers; it also features 1+1 optical protection.
3. The device supports FXO and FXS interfaces: the FXO port connects to a PBX, while the FXS port connects to user terminals.
4. The voice interface supports caller ID and fax functionality.
5. Compact size, aesthetically pleasing design, and easy installation and operation.
6. Enhanced status display functionality for easier maintenance and management.
| Protocol Standard | |
| Follow the standard | The call‑path characteristics comply with the “General Technical Specifications for Telephone Switching Equipment of the Ministry of Posts and Telecommunications.” |
| Interface parameters | |
| Voice Interface (FXO & FXS) | PCM encoding, 64 kbps per voice channel. FXO port: Connects to a PBX. Secondary line input impedance: 600 Ω (off-hook) Ring detection voltage: 35 V Ring detection frequency: 17–60 Hz Return loss: 20 dB User port (FXS): Connects to the user’s telephone. Secondary input impedance: 600 Ω (off-hook) Ring voltage: 75V Ringing frequency: 25 Hz Return loss: 20 dB |
| Optical interface | Bit rate: 155 Mbps ±20 ppm Line code: NRZ + Scrambling Optical wavelengths: 850 nm, 1310 nm, 1550 nm Optical transmit power: > -12 dBm Receiving sensitivity: < -36 dBm |
| Ethernet interface | Speed: 10/100 Mbps adaptive, full-duplex, half-duplex fully adaptive Physical interface: RJ45, supports Auto-MDIX (auto‑detects crossover or straight‑through cables) Protocol: Supports IEEE 802.3/802.3u and IEEE 802.1Q (VLAN) |
| E1 interface | Nominal rate: 2048 kbps, ±50 ppm Interface code format: HDB3 Interface impedance: 75 Ω (unbalanced) or 120 Ω (balanced) Jitter Transfer Characteristics: Compliant with ITU‑T Recommendation G.823 Input jitter tolerance: Compliant with ITU‑T G.823 recommendation. Output jitter: Complies with ITU-T G.823 recommendation. Level: ±2.37 V ±10% or ±3.00 V ±10% The interface connector is: BNC or RJ45 Electrical characteristics of the digital interface: Compliant with ITU-T Recommendation G.703. |
| Number of interfaces | |
| Optical port | Quantity: 1/2 piece Interface type: 1×9 fixed optical ports, single‑fiber/dual‑fiber, supporting FC/SC/ST connectors (FC connectors are the default at shipment). Transmission distance: Multimode fiber: 2 km; Single-mode fiber: 20/40/60/80/100/120 km |
| Voice interface | Number of telephone lines: 8 lines Interface type: RJ11 socket |
| Ethernet interface | Channels: 4 channels Interface type: RJ45 female connector |
| E1 interface | Channels: 4 channels Interface type: BNC |
| Power Supply Characteristics | |
| Input voltage | AC 220V or DC -48V |
| Full-load power consumption | <100,000 |
| Wiring Method | AC 220V: National standard three-pin plug DC-48V: Power supply terminals |
| Overload protection | Support |
| Work environment | |
| Operating temperature | -10～60℃ |
| Storage temperature | -40～85℃ |
| Relative humidity | 5% to 95% (non-condensing) |
| Mechanical Properties | |
| Shell | Metal casing |
| Installation Method | 19-inch 1U rack-mountable |
| Size | 195 mm (depth) × 485 mm (width) × 45 mm (height) |
| Warranty | |
| Warranty period | Two years |
Device model | Business Interface | Optical port | Power supply |
GQ3004E-4FE | 4 telephone lines + 4 E1s + 4 100-Mbps ports (shared) | 1 FC/SC/ST optical port optional | Built-in power supply: AC 220 V or DC -48 V |
GQ3008E-4FE | 8-channel telephone + 4 E1s + 4 × 100 Mbps (shared) | 1 FC/SC/ST optical port optional | Built-in power supply: AC 220 V or DC -48 V |
GQ3004E-4FE-2F | 4 telephone lines + 4 E1s + 4 100-Mbps ports (shared) | 1+1 optical protection (FC/SC/ST optical ports optional) | Built-in dual power supply: AC 220V + DC -48V |
GQ3008E-4FE-2F | 8-channel telephone + 4 E1s + 4 × 100 Mbps (shared) | 1+1 optical protection (FC/SC/ST optical ports optional) | Built-in dual power supply: AC 220V + DC -48V |
| When placing an order, please confirm whether the optical port is multimode or single-mode, whether it uses a single fiber or dual fibers, and the transmission distance in kilometers. | |||
Application Diagram: Fiber Optic Point-to-Point Networking
Application Diagram: 1+1 Optical Protection Networking
Related Documents
Name
Size
Type
Release Date
Download
Technical Specification (16–30-Channel Rack-Mounted Telephone Optical Terminal)
357.4KB
2025-09-06
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