Overhead line fault indicator -Transient fault indicator

(1)Cabinet distance wireless technology index: -working frequency:470~510MHz -transmission power:≤10mW（10dBm） -receiving sensitivity:≥ -90dBm -Communication speed :250kbps -Communication distance:≥100m -Network topology:star shape -direction :omnidirection (2)wireless communication technology index: -Network access:Support wireless DDN（APN）/VPDN -Network authentication:Support CHAP、PAP certification -Network standard:Support GPRS/EDGE：900/1800 MHz； Support WCDMA/HSPA：900/2100MHz -UIM/SIM Card:3V，Drawer type seat installation (3)GPS time module: -antenna gain:26~28dB -First start-up time:35S -Restart time:15 -Timing accuracy:1us