-
Product Center
-
-
-
Unmanaged Industrial Switches(Extended Temp)
Unmanaged Industrial Switch
L2 Managed Industrial Switches
L3 Managed Industrial Switches
TSN Industrial Switch
Managed Industrial PoE Switch
M12 Industrial Switch
Industrial 100-Mbps Transceiver
Industrial Gigabit Transceiver
Unmanaged Switch
L2 Managed Switches
Standard PoE Switches
Non-standard PoE Switches
Managed PoE Switch
Unmanaged Domestic Switches
Managed Domestic Switches
Unmanaged Waterproof Switches
Managed Waterproof Switches
100M Fiber Optic Transceivers
Gigabit Fiber Optic Transceivers
Fiber Optic Transceiver Chassis
Pure Telephone Optical Terminals
Telephone&Ethernet Optical Terminals
Integrated Service Telephone Optical Terminals
HDMI Video Optical Terminals
SDI Video Optical Terminals
VGA Video Optical Terminals
DVI Video Optical Terminals
3.5mm Interface Audio Optical Terminals
RCA Interface Audio Optical Terminals
XLR Interface Audio Optical Terminals
Commercial-grade Dry Contact Optical Terminals
Industrial-grade Dry Contact Optical Terminals
RS485 Date Optical Terminals
E1 Over IP
Voier Over IP
Pure E1 Optical Terminals
1+1 Fiber Back-up Optical Terminals
4~30 Channels PCM Multiplexers
Ethenet Over 1~16*E1 Converters
1~32 Serial Port Servers
Industrial 4G Routers
Industrial 5G Routers
2.4G/5.8G Wireless Bridge
Wireless AC Controller
Gigabit Optical Modules
Power Adapter
Rail-Mounted Power Supply
Fiber Optic Pigtail
Terminal Box
GQ3320N
320-line telephone optical transceiver
Keywords
Commercial Switches
Domestic Switches
隐藏域元素占位
Category:
Commercial Switches
Domestic Switches
Product Overview
The GQ3320N telephone optical terminal can transmit 320 voice channels over fiber optic links. This device employs a dedicated digital multiplexing chip that integrates nearly all of the digital logic functions, thereby significantly enhancing performance and reducing costs. The unit boasts excellent overall performance, stable and reliable operation, low power consumption, high integration, a compact footprint, and ease of 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‑optical transceivers, which often produce muffled audio and unreliable calls. Our solutions are widely deployed across major private networks and public networks, serving government agencies, the power sector, public security, the military, civil aviation, maritime operations, mining enterprises, and highway authorities.
Product Features
1. The equipment adopts a 19-inch, 4U-high card‑slot architecture.
2. Provides 16 voice service slots, 1 optical port slot, and 2 power supply slots.
3. Each telephone slot can support 20 voice channels, with a full configuration of 320 voice channels.
4. The optical port supports multimode or single-mode, and can be configured for single-fiber or dual-fiber operation.
5. The device supports FXO and FXS interfaces: the FXO port connects to a PBX, while the FXS port connects to user terminals.
6. The voice interface supports caller ID and fax.
7. Compact size, aesthetically pleasing design, and easy installation and operation.
8. 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 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 + scrambler Optical wavelengths: 850 nm, 1310 nm, 1550 nm Optical transmit power: > -12 dBm Receiving sensitivity: < -36 dBm |
| Number of interfaces | |
| Optical port | Quantity: 1 piece Interface type: 1×9 fixed optical ports, single‑fiber/dual‑fiber, supporting FC/SC/ST connectors (FC connectors are the factory default). Transmission distance: Multimode fiber: 2 km; Single-mode fiber: 20/40/60/80/100/120 km |
| Voice interface | Number of telephone lines: 320 lines Interface type: RJ45 jack (1 port outputs 4 telephone lines) |
| Interface Mode | 4U rack-mount plug-in card architecture, including 16 telephone interface cards and 1 optical interface card. Telephone interface card: 20 telephone channels per card (5 RJ45 ports) Optical interface card: each card features 1 optical port and 4 network ports. |
| Power Supply Characteristics | |
| Number of power supply circuits | Dual power redundancy (dual AC, dual DC, AC + DC) |
| Input voltage | AC 220V or DC -48V |
| Full-load power consumption | <300W |
| 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 4U rack-mountable |
| Size | 245 mm (depth) × 485 mm (width) × 180 mm (height) |
| Warranty | |
| Warranty period | Two years |
Device model | Voice input | Optical port | Power supply |
GQ3320N | Route 320 phone number | 1 FC/SC/ST optical port optional | Dual power supply: AC 220 V or DC -48 V |
| 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
Related Documents
Name
Size
Type
Release Date
Download
Beijing–Tianjin–Hebei, Henan, Shanxi, Inner Mongolia, and Sichuan:+8613719208595
Fujian, Guangxi, Hainan, Yunnan, Guizhou, and Jiangxi:+863760887412
Heilongjiang, Jilin, Liaoning, Inner Mongolia, Hunan, Chongqing:18126729399
Jiangsu, Zhejiang, Shanghai, Shandong, and Anhui:+8618198851696
Shaanxi, Gansu, Ningxia, Qinghai, Xinjiang, and Tibet:+8618198851697
Guangdong Region:+8613302232639 +8618903052902
3rd Floor, Elevator No. 1, Building B, Guangzheng Science and Technology Park, No. 11, Nanyun Fifth Road, Huangpu District, Guangzhou City