-
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
GQ1004N
4E1 to 4-Channel Ethernet Protocol Converter
Keywords
Commercial Switches
Domestic Switches
隐藏域元素占位
Category:
Commercial Switches
Domestic Switches
Product Overview
The protocol converter is implemented using a large-scale FPGA and employs reverse multiplexing technology to aggregate multiple E1 circuits for transmitting four 100BASE‑TX Ethernet channels, enabling bidirectional conversion between 1 to 4 E1 channels and an Ethernet optical interface. This device can transmit E1‑channel signals point‑to‑point to the Ethernet optical interface, thereby interconnecting E1 channels with the Ethernet optical interface. Unlike conventional remote bridges, this equipment supports flexible configuration of 1 to 4 E1 channels, automatically detects the number of available E1 links, and allows for configurable timing offsets among E1 circuits. The data rate per channel is 1,984 kbit/s, and the aggregate bandwidth of four channels can reach 7,936 kbit/s.
This device provides: four E1 interfaces (75 ohms) and four 10/100 Mbps Ethernet interfaces.
Product Features
1. Achieve transparent transmission of Ethernet data over 1 to 4 E1 circuits.
2. It can perform reset operations on both local and remote devices.
3. Ethernet interface, 100BASE-FX, supports VLAN protocol.
4. Built-in dynamic Ethernet MAC address table (4,096 entries) with local frame filtering capability.
5. The data rate of a single E1 line is 1,984 kbit/s, and four E1 lines can achieve a total bandwidth of 7,936 kbit/s.
6. The four 10/100M Ethernet interfaces can be isolated from one another, enabling independent communication.
7. Each Ethernet port supports 10/100 Mbps, with full/half-duplex auto‑negotiation and AUTO‑MDIX (automatic crossover detection for both crossover and straight-through cables), and allows arbitrary configuration of the Ethernet operating mode.
8. The system allows setting a CRC alarm threshold to automatically isolate links with poor transmission quality, with unidirectional disconnection: when the bit error rate on one direction of a 2M tributary exceeds the threshold, only that direction is disconnected, while the other direction remains unaffected; in other words, the two directions of Ethernet transmission can be asymmetric.
9. Four E1 channels are permitted to have a transmission delay difference of up to 100 ms. When this difference exceeds the allowable threshold, the system can automatically cease transmitting data over the E1 channel with the excessive delay.
10. The E1 interface complies with ITU-T G.703, G.704, and G.823, and does not support the use of signaling timeslots.
11. The E1 interface module incorporates a built-in clock recovery circuit and an HDB3 codec circuit.
12. During operation, the device supports hot-swapping of E1 channels and automatically detects valid E1 channels, ensuring uninterrupted data transmission.
13. Supports flexible configuration of 1 to 4 E1 channels, automatically detecting the number of E1 lines and their latency upon reset and selecting the available E1 channels.
| Interface parameters | |
| E1 interface | Equipment interface: Compliant with Recommendation G.703 Bitrate: 2048 Kb/s ± 50 ppm Code Type: HDB3 Impedance: 75 Ω (unbalanced) or 120 Ω (balanced); the unbalanced connector is BNC, compatible with 75‑2/3 coaxial cable. Jitter Characteristics: Complies with Recommendations G.742 and G.823. Input port attenuation range: 0 to 6 dBm |
| Ethernet interface | Protocol: Compliant with IEEE 802.3 and IEEE 802.1Q (VLAN) Speed: 10/100 Mbps auto-negotiation, full/half-duplex fully adaptive MAC Address Table: Can learn up to 4,096 MAC addresses. Physical interface: RJ45 port, supports Auto-MDIX (auto‑detects crossover or straight‑through cables) |
| Power Supply Characteristics | |
| Input voltage | AC 220V or DC -48V |
| Full-load power consumption | <5W |
| 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 | Desktop installation |
| Size | 138 mm (depth) × 216 mm (width) × 41 mm (height) |
| Warranty | |
| Warranty period | Two years |
Device model | Business Interface | E1 port | Power supply |
GQ1004N-A | 4-way Ethernet | 4 E1 ports | Single power supply AC 220V |
GQ1004N-D | 4-way Ethernet | 4 E1 ports | Single-supply DC-48V |
| When placing your order, please confirm whether you require an AC 220 V power supply or a DC –48 V power supply. | |||
Application Diagram: E1 Point-to-Point Networking
Related Documents
Name
Size
Type
Release Date
Download
Technical Specification (16–30-Channel Rack-Mounted Telephone Optical Terminal)
357.4KB
2025-09-06
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