Samji Electronics
Samji Electronics
Description
1. Overview
A Multi Band (800㎒/1.8㎓/2.1㎓) optical repeater that used in large cities that has large telephone traffic and small town that the signal is weak, to expands the coverage of the base station and solve the issues with the area with weak signals
2. Characteristics
① Application of digital signal processing and transmission system based on minimizing transmission losses allow long distance transmission.
② The advantages of digital signal utilizing practical expandability (Multi-drop, Cascade)
③ The external battery installed prevent service interruption due to the power outage.
④ The backup battery has the overdischarge and overcharge protection circuit.
⑤ Monitoring, alarm function, control function, editing and equipment setting with wired and wireless communication and alarm history can be inquired using local GUI function.
3. Specification
| Order | Item | CDMA | LTE | LTE | |
| 1 | Frequency [MHz] | FWD | 1860~1870 | 884~894 | 2110~2120 |
| RVS | 1770~1780 | 839~849 | 1920~1930 | ||
| 2 | Gain | FWD | 57dB | 55dB | 58dB |
| RVS | 45dB | 45dB | 45dB | ||
| 3 | Input range | FWD | +5dBm/Total | +10dBm/Total | +1dBm/Total |
| RVS | -65dBm/Total | -65dBm/Total | -65dBm/Total | ||
| 4 | Max. output | FWD | 44.7dBm/Path | 43dBm/Path | 46dBm/Path |
| RVS | -20dBm/Path | -20dBm/Path | -20dBm/Path | ||
| 5 | Heat dissipation | Natural Convection | |||
| 6 | Operating temperature | -30℃ ~ +60℃ | |||
| 7 | Storage temperature | -40℃ ~ +70℃ | |||
| 8 | Humidity | 5~95% (Non-condensing) | |||
| 9 | SIZE(mm) | 290(W) x 607(H) x 341(D) | |||