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SVR-1650E/1640A/950E User Manual4. Communication port (RS-232C)This is a port used to connect to the PC to control the product.No. Description No. Description1 N/C(Not connected) 6 N/C(Not connected)2 RxD(Data receive) 7 N/C(Not connected)3 TxD(Data send) 8 N/C(Not connected)4 N/C(Not connected) 9 N/C(Not connected)5 GND(Ground)External devices ATM/POS may be connected and used.- SVR-1650E/1640A : RS-232C- SVR-950E : CONSOLE.35. Monitor output (VGA)This is an output connector for the VGA monitor.No. Description No. Description1 Red signal(75Ω, 0.7Vp–p) 9 N/C(Not connected)2 Green signal(75Ω, 0.7Vp–p) 10 GND3 Blue signal(75Ω, 0.7Vp–p) 11 GND4 N/C(Not connected) 12 N/C(Not connected)5 GND 13 HSYNC(Horizontal synchronization)6 GND 14 VSYNC(Vertical synchronization)7 GND 15 N/C(Not connected)8 GND6. LAN connection (Ethernet)This is a port to connect to the network.No. Description No. Description1 TX+ (Data send) 5 N/C (Not connected)2 TX- (Data send) 6 RX-(Data receive)3 RX+(Data receive) 7 N/C (Not connected)4 N/C (Not connected) 8 N/C (Not connected)When connecting network cable, we recommend installation with the cable core as below to improvecommunication quality.33