Microwave Optical Terminal Equipment
Analog Optical Communication · IF to 67 GHz · Hot‑swappable · Remote Control
Figure 1: Physical image (3U/1U chassis)
Figure 2: Application block diagram
The microwave signal optical transmission equipment provides transparent RF communication support across wide bands. Built on a modular 1U/2U/3U card‑insertion platform, it handles up to 8 channels with hot‑swappable business cards, real‑time optical power detection, and intelligent network management – an ideal replacement for heavy coaxial networks.
Functional Requirements (All Models)
- Power loss preservation and power‑on recovery functionality
- Optical signal alarm/normal display function on the equipment panel
- Input power detection and input saturation alarm/normal indicator light
- Panel with configurable network parameters (serial port, Ethernet, IP address)
- Panel‑based configuration of operational parameters (gain)
- Query response functions for equipment model/serial number or unique identifier
- Full‑state remote control query response capability
- Remote control functionality for operational parameters (gain)
- Adaptive transmission distance capability
- Optional Gigabit Ethernet optical transmission channel
- Hot‑swappable business modules (1U/2U/3U card‑type structure)
1–7. Single‑Band Optical Transmission Equipment
| Model | Frequency Range | Wavelength (nm) | Input P1dB | In‑band Flatness | Noise Figure | Range (km) |
|---|---|---|---|---|---|---|
| GJT-IF | 10 – 150 MHz | 1310/1550 | ≥ -10 dBm | ±0.5 dB | ≤15 dB | 0–30 |
| GJT-0330A | 30 MHz – 3 GHz | 1550 | ≥ -10 dBm | ≤2 dB | ≤15 dB | 0–20 |
| GJT-3442A | 3.4 – 4.2 GHz | 1310/1550 | ≥ -10 dBm | ≤±1 dB | ≤20 dB | 0–30 |
| GJT-7G9G | 7 – 9 GHz | 1310/1550 | ≥0 dBm | ≤±1 dB | ≤18 dB | 0–30 |
| GJT-10G13G | 10.7 – 12.75 GHz | 1310/1550 | ≥ -10 dBm | ≤±1.5 dB | ≤23 dB | 0–30 |
| GJT-0842A | 800 MHz – 4.2 GHz | 1550 | ≥ -10 dBm | ≤±2 dB | ≤18 dB | 0–20 |
| JJT-3090A | 3 – 9 GHz | 1310/1550 | ≥ -15 dBm | ≤±2 dB | ≤15/8 dB | 0–20 |
8. GJT-MB Multi‑band Microwave Optical Transmission
| Model | Frequency Range | Flatness | Input P1dB | Noise Figure | VSWR | RF Connector |
|---|---|---|---|---|---|---|
| GJT-2G8G | 2 – 8 GHz | ±2 dB | ≥ -18 dBm | ≤20 dB | ≤1.8:1 | SMA |
| GJT-7G14G | 7 – 14 GHz | ±2 dB | ≥ -18 dBm | ≤20 dB | ≤2:1 | SMA |
| GJT-2G18G | 2 – 18 GHz | ±3 dB | ≥ -20 dBm | 40 dB @20GHz | ≤2:1 | SMA |
| GJT-50M40G | 50 MHz – 40 GHz | ±5 dB | ≥ 13 dBm | 46 dB @40GHz | ≤3:1 | K (2.92mm) |
Group delay (1GHz bandwidth): ≤1 ns p‑p · 50Ω impedance · Monitoring: RS232/RS485/Ethernet optional
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9. Additional Frequency Band Models
| Model | Frequency Range | Noise Figure | Flatness | VSWR | Notes |
|---|---|---|---|---|---|
| GJT-30M1500M | 30 MHz – 1500 MHz | 15 dB | ≤±1 dB | 1.5:1 | P1dB adj -15~+15dBm, att 0-25dB |
| GJT-L | 950 MHz – 2150 MHz | 15 dB | ≤±1 dB | 1.5:1 | L‑band |
| GJT-2042A | 2 – 4.2 GHz | 18 dB | ≤±1 dB | 1.6:1 | S/C band |
| GJT-4G8G | 4 – 8 GHz | 20 dB | ≤±1.5 dB | 1.8:1 | C‑band |
| GJT-7G10G | 7 – 10 GHz | 23 dB | ≤±1.5 dB | 1.8:1 | X‑band |
| GJT-Ku | 8 – 12.5 GHz | 20 dB | ≤±1.5 dB | 2:1 | Ku‑band |
| GJT-12G18G | 12 – 18 GHz | 28 dB | ≤±2 dB | 2:1 | ≥ -15dBm P1dB |
| GJT-26G32G | 26 – 32 GHz | 28 dB | ≤±1.5 dB | 2.5:1 | ≥ -20dBm P1dB |
| GJT-26G40G | 26 – 40 GHz | 30 dB | ≤±3 dB | 3:1 | ≥ -20dBm P1dB |
| GJT-0167A | 100 MHz – 67 GHz | 52 dB | ≤±7 dB | 3:1 | ≥ 15dBm P1dB |
All models share the common functional requirements listed above. Customization (frequency, gain, connectors) available upon request.