... software ;50Pin extended interface, to the height of 128 points;RS232 and RS485 communication without the jumper, and also supports GSM / GPRS ... of 1/16, 1/8, 1/4, static routingControl card with search function , the screen parameter setting, scan settings, read data ... /off the led screen.Analog clock led display (watch)Digital time ,digital clock led display Multi-line text Editor led moving message ...