Cable TV system diagram 1. Basic composition (1) Receive signal source (2) Front-end equipment (3) Trunk transmission system. Such as trunk amplifier (AGC), (ASC) and trunk cable or optical cable. Cable Modem, RJ-45 10Base-T connector for computer connection, downlink carrier frequency between 88 ～ 860 MHz, using 64 / 256QAM mode, downlink rate up to 42.4M bps, uplink modulation frequency can be up to 42 MHz, using QPSK / 16QAM, the uplink rate can be up to 10Mbps. For knowledge about modems, please check: http: // Fpc Connector,Straight Pin Fpc Connector,Gold-Plated Straight Pin Fpc Connector,Conventional Fpc Connector Shenzhen Jinyicheng Electronci Technology Co.,Ltd. , https://www.jycconnectors.com
(4) User distribution network
(5) User terminal TV reception, FM broadcast, cable modem (Cable Modem, PC, IP phone, etc.), etc. 
