... ;With 2*IO(HUB08) and 4*IO(HUB12)interface;Supports GSM / GPRS communications;Smart settings for outdoor scan, ... 1/8,1/4,1/2, static routingScan interface 2*IO(HUB08),4*IO(HUB12)Communication modeRS232, ... sinlge color and dual color .Like text, it supports static text,single-line text,multi-line text; ... backward the time.For the timing display, it supports positive and negative timing(cutdown) ;If you ' ...