Digital Fiber DAS
800MHz Tetra Fiber DAS Repeater
Introduction
Tetra Fiber DAS was used in tunnel and metrol station communication coverage.
Product Features
| 1 | MU can connect 2-4 sets RU without the use of optical power dividers; |
| 2 | 19-inch standard cabinet, depth is not greater than 550mm, height is not greater than 4U |
| 3 | Power power is not greater than 300W, power cord length is not less than 2m |
| 4 | Fiber optic connector using FC/PC,up and down common |
| 5 | The network management interface uses RJ45, the standard Ethernet interface |
| 6 | RF interface adopts N-F interface, shared by uplink and downlink |
1. Chart of working principle
Please Download Tetra Fiber DAS Data Sheet
MU
RU
2. Chassis Appearance
MU
Outdoor RU
Indoor RU
3. Technical parameters
| Serial number | Project | Technical parameters | ||
| Downlink | Uplink | |||
| 1 | Frequency range (Accept to customize Tetra 400MHz) | 851MHz-866MHz | 806MHz-821MHz | |
| 2 | Maximum output power | 37±2dBm | -10±2dBm | |
| 3 | Maximum gain | 50±2dB | 50±2dB | |
| 4 | Gain adjustment range/step length | 30dB/1dB | ||
| 5 | Gain adjustment error | Gain at 0 to 20dB, the error is 1dB, and at 21 to 30dB, the error is 1.5dB | ||
| 6 | Noise figure | / | ≤5dB | |
| 7 | Maximum allowable input level | 10dBm | -10dBm | |
| 8 | Automatic Level Control (ALC) | At the maximum power, the input is increased by another 10dB, the output power change is less than 2dB, and when the input signal level exceeds 10dB, the output power is kept within the maximum output power of .2dB or the output is turned off. The control range is 20dB. | ||
| 9 | Within-band fluctuations | ≤3dB | ||
| 10 | Input/output voltage station ratio | ≤1.5 | ||
| 11 | Delay | ≤5μs | ||
| 12 | Frequency error | ≤5×10-8 | ||
| 13 | Stray launch | Inside the working band | ≤-50dBc/30kHz或≤-36dBm/3kHz | |
| Out-of-work band （ (off-line working band edge 2.5MHz) ） | 9kHz～1GHz：≤-36dBm | |||
| 1GHz-12.75GHz:--30dBm | ||||
| 14 | Intermodulation attenuation | Inside the working band | ≤-50dBc/30kHz | ≤-50dBc/30kHz |
| Out-of-work band （ (off-line working band edge 2.5MHz) ） | 9kHz-1GHz:--36dBm/100kHz | |||
| 1GHz-12.75GHz:---30dBm/1MHz | ||||
| 15 | Light reception sensitivity | ≤-15dBm | ||
| 16 | Light wavelength | 1310nm/1550nm | ||
| 17 | Optical power | 3±2dBm | ||
| 18 | Light transmission distance | ≥20km | ||
| 19 | The number of near and far ends is ratio | 1 todrag 4 as needed | ||
| 20 | Rf connection | N/F,50 | ||
| 21 | How light is connected | FC/PC | ||
| 22 | Power supply | Near-end machine: AC220V . . . 20%, 50 to 5Hz; Remote machine: AC220V , 50 x 5Hz; | ||
| 23 | Power | Near-end machine: s20W; Remote machine: s180W; | ||
| 24 | Protection level | Near-end: IP40 Remote machine: IP65 | ||
| 25 | Dimensions | Near-end machine: 483 x 310 x (L x W x H)88mm Indoor remote machine: 483 x 400 x (L x W x H)180mm Outdoor remote machine: 453 x 357 x (L x W x H)160mm | ||
| 26 | Weight | Near-end machine: 8kg Indoor remote end machine:25kg Outdoor type remote machine: 25kg | ||
| 27 | Monitoring | Local monitoring: RS232; Remote monitoring: Ethernet | ||
| 28 | MTBF | 50000h | ||
